commit 35d2c51ff152269765d74b81bf9b73ef9dfafc44
Author: Jarian <jarianc>
Date:   Fri Jul 3 01:08:48 2026 +0000

    initial commit

diff --git a/.gitignore b/.gitignore
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+node_modules/
+
diff --git a/AGENTS.md b/AGENTS.md
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+# AGENTS.md — Zelda Dungeon Quest
+
+## Run Commands
+
+- **Browser dev**: `npm run dev` → `npx serve . -p 3000`, open `http://localhost:3000`
+- **Electron**: `npm start` (requires `--no-sandbox` on Linux, or `ELECTRON_DISABLE_SANDBOX=1`)
+- **Node tests**: `node test-full-node.js` (VM-based, simulates browser env)
+- **Regenerate bosses**: `node generate-bosses.js` (rewrites `src/data/bosses.js`)
+
+## Module System — Critical
+
+This project uses a **custom browser polyfill** (`src/browser-polyfill.js`) that makes Node-style `module.exports` / `require()` work in the browser. Every source file must follow this pattern:
+
+1. **Export via `module.exports`** at the end of each file:
+   ```js
+   if (typeof module !== 'undefined' && module.exports) {
+     module.exports = { exportedName1, exportedName2 };
+   }
+   ```
+
+2. **Symbols go to `window`** — the polyfill's `module.exports` setter mirrors all exported properties to `window`. Cross-module access reads from `window`.
+
+3. **`moduleKeys` registry** — `src/browser-polyfill.js` maintains a `moduleKeys` map that tells `require()` which `window` keys belong to each module path. **When you add new exports to any module, you MUST add them to the matching entry in `moduleKeys`, or `require()` will not return them.**
+
+4. **Script load order** — `index.html` loads scripts in a strict sequence. The polyfill loads first, then modules in dependency order. Adding a new script requires inserting it at the correct position in `index.html`.
+
+## File Architecture
+
+```
+renderer.js              ← Legacy prototype (3-room, standalone). NOT used by index.html.
+src/app.js               ← Bootstrap: init, game loop, screen switching
+src/browser-polyfill.js  ← CommonJS polyfill (moduleKeys registry)
+
+src/core/                ← Constants, RNG, utilities (loaded first)
+src/data/                ← Static definitions: themes, dungeons(100), enemies(22), weapons(12), bosses(100), items
+src/generator/           ← Procedural generation: dungeon layout, rooms, puzzles, placement
+src/game/                ← Engine: state, movement, combat, AI, items, transitions
+src/input/               ← Keyboard tracking, action bindings
+src/rendering/           ← Canvas rendering: tiles, entities, HUD, effects
+src/menu/                ← Title screen, dungeon select, inventory overlay, end screens
+src/save/                ← localStorage save/load
+```
+
+Grid: 32×24 tiles, 32px each. Canvas: 640×480.
+
+## Known Bug
+
+`src/app.js:390` — The `init()` function's closing `}` appears before lines that should be inside it (screen setup, game loop start, debug logging). Lines 392-406 are outside the function scope. Move the closing brace to after line 406 to fix.
+
+## Conventions
+
+- All source files start with `'use strict'`
+- Constants live in `src/core/constants.js`; other modules import via `require`
+- `gameState` and `inputSystem` are module-level globals exposed to `window` by `app.js`
+- `ctx`, `debugCtx`, `menuOverlay` are exposed to `window` by `app.js` for cross-module rendering
+- Screen states use string constants: `SCREEN_TITLE`, `SCREEN_DUNGEON_SELECT`, etc.
+- Debug mode: append `?debug=1` to URL; `F1` toggles overlay in-game
+- Console API (browser): `_genDungeon(id)`, `spawnEnemy(type)`, `giveWeapon(name)`, `teleportToRoom(idx)`, `dumpState()`
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diff --git a/PLAN.md b/PLAN.md
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+# Zelda Dungeon Expansion — Plan Document
+
+## Goal
+Expand from 3-room prototype to **100 procedurally-generated dungeons**, each with **20-100 rooms**, **20+ enemy types**, **12 weapons**, **100 unique bosses**, dungeon selection menu, save system, and sequential progression.
+
+## Target: Browser-First
+- Runs in a standard web browser (no Electron dependency for testing)
+- Electron wrapper added later via existing `main.js` / `preload.js`
+- Playtesting via `npx serve` or simple HTTP server
+
+---
+
+## Architecture
+
+### File Structure
+```
+zelda-dungeon/
+├── index.html              ← Main entry point (browser), loads all scripts
+├── main.js                 ← Electron main process (untouched for now)
+├── preload.js              ← Electron IPC bridge (updated for save data)
+├── package.json            ← Add "dev" script for browser testing
+│
+├── src/
+│   ├── core/
+│   │   ├── constants.js    ← TILE, COLS, ROWS, tile types, timing, COLORS
+│   │   ├── rng.js          ← Seeded RNG (mulberry32) for reproducibility
+│   │   └── utils.js        ← Helper functions (createBorderLayout, drawHeart, etc.)
+│   │
+│   ├── data/
+│   │   ├── themes.js       ← Dungeon themes (Forest, Desert, Mountain, etc.) with colors
+│   │   ├── dungeons.js     ← 100 dungeon definitions (name, theme, difficulty, seed, room count)
+│   │   ├── enemies.js      ← 22 enemy type definitions (stats, AI, draw functions)
+│   │   ├── bosses.js       ← 100 boss definitions (one per dungeon)
+│   │   ├── weapons.js      ← 12 weapon definitions (damage, range, effects, draw functions)
+│   │   └── items.js        ← Consumables (potions, heart pieces, arrows, bombs, keys)
+│   │
+│   ├── generator/
+│   │   ├── dungeon.js      ← Generates full dungeon from definition (rooms + connections)
+│   │   ├── rooms.js        ← Generates individual rooms (layout, enemies, items, puzzles)
+│   │   ├── puzzles.js      ← Puzzle generation (rock-push, levers, keys, switches)
+│   │   └── placement.js    ← Placement logic (enemy/item density by difficulty tier)
+│   │
+│   ├── game/
+│   │   ├── state.js        ← Game state management (player, room, dungeon, menus)
+│   │   ├── combat.js       ← Attack resolution, damage, effects
+│   │   ├── movement.js     ← Player movement, rock pushing, exit handling
+│   │   ├── ai.js           ← Enemy AI (chase, patrol, shoot, special behaviors)
+│   │   ├── items.js        ← Item pickup, chest opening, inventory management
+│   │   └── transitions.js  ← Room transitions, screen fades
+│   │
+│   ├── rendering/
+│   │   ├── renderer.js     ← Canvas drawing (floor, walls, torches, entities)
+│   │   ├── draw-enemies.js ← Per-enemy-type draw functions
+│   │   ├── draw-bosses.js  ← Boss draw functions (larger, multi-phase visuals)
+│   │   ├── draw-weapons.js ← Weapon draw functions
+│   │   ├── hud.js          ← HUD rendering (hearts, weapon, ammo, room info)
+│   │   └── effects.js      ← Particles, hit flashes, screen transitions
+│   │
+│   ├── input/
+│   │   ├── keyboard.js     ← Key state tracking, action binding
+│   │   └── actions.js      ← Action definitions (move, attack, use item, select)
+│   │
+│   ├── menu/
+│   │   ├── title-screen.js ← Title screen rendering + interaction
+│   │   ├── dungeon-select.js ← Dungeon grid, filtering, info panel
+│   │   ├── hud-overlay.js  ← In-game menu (inventory, weapon switch)
+│   │   └── screens.js      ← Death/win/completion screens
+│   │
+│   ├── save/
+│   │   └── save.js         ← localStorage save/load, progress tracking
+│   │
+│   └── app.js              ← Main bootstrap (init, game loop, screen switching)
+```
+
+---
+
+## Implementation Phases
+
+### Phase 1: Core Infrastructure
+- [ ] Create directory structure
+- [ ] `constants.js` — All shared constants (TILE, COLS, ROWS, COLORS, timing)
+- [ ] `rng.js` — Seeded PRNG (mulberry32)
+- [ ] `utils.js` — Reusable helpers (createBorderLayout, drawHeart, DIRS, etc.)
+- [ ] `index.html` — New HTML that loads all scripts, canvas, menu div
+- [ ] `app.js` — Bootstrap: init → title screen → game loop
+- [ ] Validate: Open in browser, see title screen
+
+### Phase 2: Data Definitions
+- [ ] `themes.js` — 8 themes (Forest, Desert, Mountain, Underground, Ocean, Sky, Shadow, Final) with color palettes
+- [ ] `dungeons.js` — 100 dungeon definitions (generated procedurally from themes)
+- [ ] `enemies.js` — 22 enemy types with stats, behaviors, colors, draw functions
+- [ ] `weapons.js` — 12 weapons with damage, range, cooldown, effects
+- [ ] `bosses.js` — 100 bosses (one per dungeon), template-based with variations
+- [ ] `items.js` — Consumables definitions
+- [ ] Validate: Data files load without errors, can inspect in console
+
+### Phase 3: Procedural Generation
+- [ ] `generator/dungeon.js` — BSP/DFS room layout generation from seed
+- [ ] `generator/rooms.js` — Room type assignment, layout generation
+- [ ] `generator/puzzles.js` — Puzzle generation (rock-push, levers, keys)
+- [ ] `generator/placement.js` — Enemy/item placement by difficulty tier
+- [ ] Validate: Generate dungeon #1, inspect rooms, verify connectivity
+
+### Phase 4: Game Engine
+- [ ] `game/state.js` — Game state (player, current room, inventory, progress)
+- [ ] `game/movement.js` — Player movement, rock pushing, collision
+- [ ] `game/combat.js` — Attack resolution, weapon effects, damage
+- [ ] `game/ai.js` — Enemy AI (chase, patrol, ranged, special)
+- [ ] `game/items.js` — Chest opening, item pickup, inventory
+- [ ] `game/transitions.js` — Room transitions, screen fades
+- [ ] `input/keyboard.js` — Key tracking, action dispatch
+- [ ] `input/actions.js` — Action definitions
+- [ ] Validate: Play through generated dungeon #1 in browser
+
+### Phase 5: Rendering
+- [ ] `rendering/renderer.js` — Floor, walls, torches (theme-colored)
+- [ ] `rendering/draw-enemies.js` — All 22 enemy draw functions
+- [ ] `rendering/draw-bosses.js` — Boss draw functions
+- [ ] `rendering/draw-weapons.js` — Weapon visual indicators
+- [ ] `rendering/hud.js` — Hearts, weapon icon, ammo, room counter
+- [ ] `rendering/effects.js` — Particles, hit flash, screen transitions
+- [ ] Validate: Visual rendering looks correct for all entity types
+
+### Phase 6: Menu System
+- [ ] `menu/title-screen.js` — Title, start button, controls
+- [ ] `menu/dungeon-select.js` — 10x10 grid, theme filter, difficulty, lock status
+- [ ] `menu/screens.js` — Death, win, dungeon completion screens
+- [ ] Validate: Navigate menus, select dungeon, enter game
+
+### Phase 7: Save System
+- [ ] `save/save.js` — localStorage persistence
+- [ ] Save format: `{ completedDungeons: [], weapons: [], heartPieces: N, totalRooms: N }`
+- [ ] Auto-save on dungeon completion
+- [ ] Resume functionality
+- [ ] Validate: Complete dungeon → close browser → reopen → progress saved
+
+### Phase 8: Integration & Polish
+- [ ] Connect all systems end-to-end
+- [ ] Playtest first 10 dungeons
+- [ ] Balance difficulty curve
+- [ ] Screen transition effects
+- [ ] Error handling, edge cases
+- [ ] Validate: Full playthrough dungeon #1 → #10
+
+### Phase 9: Electron Integration (Later)
+- [ ] Update `preload.js` — expose save/load IPC
+- [ ] Update `main.js` — if needed
+- [ ] Validate: `npm start` works in Electron
+
+---
+
+## Technical Decisions
+
+### Seeded RNG
+- Mulberry32 algorithm: fast, deterministic, good quality for game generation
+- Same seed → same dungeon every time
+- Seeds stored in `dungeons.js` definitions
+
+### Room Generation Algorithm
+- Randomized DFS (depth-first search) for organic-feeling dungeons
+- Room sizes: 5x5 to 12x12 tiles
+- Corridors connect rooms (1-tile wide, L-shaped)
+- Room types assigned by dungeon phase (early/mid/late)
+
+### Difficulty Scaling
+- Dungeon difficulty: 1-10 (based on index)
+- Room count: 20 (difficulty 1-2) → 100 (difficulty 10)
+- Enemy density: 0-1 per room (easy) → 2-4 per room (hard)
+- Enemy types unlocked by difficulty tier
+- Boss HP scales with dungeon difficulty
+
+### State Management
+- Single `game` object with nested state
+- Screen states: `TITLE`, `DUNGEON_SELECT`, `PLAYING`, `DEAD`, `DUNGEON_COMPLETE`, `GAME_COMPLETE`
+- Room data regenerated from seed on entry (no permanent room state)
+- Player state persists across rooms within a dungeon
+- Inventory persists across dungeons
+
+### Combat System
+- Weapon-based damage (varies by weapon type)
+- Attack cooldowns per weapon
+- Ranged weapons (bow, slingshot, rods) have projectile system
+- Special effects: fire (AoE), ice (freeze), boomerang (return), bombs (destroy walls)
+- Enemy HP, defense, attack damage, attack cooldown
+
+### Enemy AI Behaviors
+- `chase`: Pathfind toward player (existing behavior)
+- `patrol`: Wander predefined path
+- `ranged`: Shoot projectiles at player
+- `stationary`: Activate on proximity
+- `charge`: Rush at player in straight line
+- `teleport`: Random teleportation
+- `explode`: Explode on contact or timer
+
+---
+
+## Playtesting Hooks
+
+### Debug Mode
+- `?debug=1` URL parameter enables debug overlay
+- Shows: room grid, collision boxes, AI state, generation seed
+- `F1` toggles debug overlay during gameplay
+- `F2` forces next room (skip puzzles)
+- `F3` god mode (invincible)
+- `F4` spawn debug enemy at player position
+
+### Console API
+- `generateDungeon(id)` — Generate and inspect any dungeon
+- `spawnEnemy(type)` — Spawn enemy at player position
+- `giveWeapon(name)` — Add weapon to inventory
+- `teleportToRoom(idx)` — Jump to room by index
+- `dumpState()` — Print full game state to console
+
+### Performance
+- Room rendering only draws visible tiles + buffer
+- Enemy AI updates throttled by type
+- Particle system capped at 100 particles
+
+---
+
+## Browser Testing
+
+- `npm run dev` → `npx serve .` for local HTTP server
+- Open `http://localhost:3000` in browser
+- `npm start` → Electron app (for later)
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diff --git a/generate-bosses.js b/generate-bosses.js
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+#!/usr/bin/env node
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+
+const { DUNGEONS } = require('./src/data/dungeons');
+
+const themeColors = {
+  stone: { body: '#696969', eye: '#FFD700', accent: '#A9A9A9' },
+  forest: { body: '#228B22', eye: '#90EE90', accent: '#006400' },
+  desert: { body: '#DAA520', eye: '#8B4513', accent: '#FFD700' },
+  mountain: { body: '#4682B4', eye: '#E0E0E0', accent: '#87CEEB' },
+  underground: { body: '#4B0082', eye: '#DA70D6', accent: '#9400D3' },
+  ocean: { body: '#006994', eye: '#00CED1', accent: '#4682B4' },
+  sky: { body: '#FFD700', eye: '#FFFACD', accent: '#FF8C00' },
+  shadow: { body: '#1A0A2A', eye: '#9400D3', accent: '#4B0082' },
+  final: { body: '#8B0000', eye: '#FFD700', accent: '#FF4500' },
+};
+
+const templateAssignments = {
+  0: 'gleeok', 11: 'gleeok', 22: 'gleeok', 33: 'gleeok', 44: 'gleeok',
+  55: 'gleeok', 66: 'gleeok', 77: 'gleeok', 88: 'gleeok', 99: 'gleeok',
+  1: 'darknut', 10: 'darknut', 21: 'darknut', 32: 'darknut', 43: 'darknut',
+  54: 'darknut', 65: 'darknut', 76: 'darknut', 87: 'darknut', 98: 'darknut',
+  2: 'wizzrobe', 12: 'wizzrobe', 23: 'wizzrobe', 34: 'wizzrobe', 45: 'wizzrobe',
+  56: 'wizzrobe', 67: 'wizzrobe', 78: 'wizzrobe', 89: 'wizzrobe', 97: 'wizzrobe',
+  3: 'moldorm', 13: 'moldorm', 24: 'moldorm', 35: 'moldorm', 46: 'moldorm',
+  57: 'moldorm', 68: 'moldorm', 79: 'moldorm', 90: 'moldorm', 96: 'moldorm',
+  4: 'genie', 14: 'genie', 25: 'genie', 36: 'genie', 47: 'genie',
+  58: 'genie', 69: 'genie', 80: 'genie', 91: 'genie', 95: 'genie',
+  5: 'liklike', 15: 'liklike', 26: 'liklike', 37: 'liklike', 48: 'liklike',
+  59: 'liklike', 70: 'liklike', 81: 'liklike', 92: 'liklike', 94: 'liklike',
+  6: 'aquamentus', 16: 'aquamentus', 27: 'aquamentus', 38: 'aquamentus', 49: 'aquamentus',
+  60: 'aquamentus', 71: 'aquamentus', 82: 'aquamentus', 93: 'aquamentus',
+  7: 'manhandla', 17: 'manhandla', 28: 'manhandla', 39: 'manhandla', 50: 'manhandla',
+  61: 'manhandla', 72: 'manhandla', 83: 'manhandla',
+  8: 'gleeok_variant', 18: 'gleeok_variant', 29: 'gleeok_variant', 40: 'gleeok_variant',
+  51: 'gleeok_variant', 62: 'gleeok_variant', 73: 'gleeok_variant', 84: 'gleeok_variant',
+  9: 'agahnim', 19: 'agahnim', 30: 'agahnim', 41: 'agahnim', 52: 'agahnim',
+  63: 'agahnim', 74: 'agahnim', 85: 'agahnim',
+  // Fill remaining gaps not covered by the mod-11 pattern
+  20: 'genie', 31: 'liklike', 42: 'moldorm', 53: 'wizzrobe', 64: 'darknut', 75: 'gleeok',
+  86: 'moldorm',
+};
+
+// Verify all 100 indices covered
+for (let i = 0; i < 100; i++) {
+  if (!templateAssignments[i]) {
+    console.error('ERROR: No template for index ' + i);
+    process.exit(1);
+  }
+}
+
+const nameTemplates = {
+  gleeok: {
+    stone: 'Stone Gleeok', forest: 'Verdant Gleeok', desert: 'Sand Gleeok',
+    mountain: 'Frost Gleeok', underground: 'Shadow Gleeok', ocean: 'Tidal Gleeok',
+    sky: 'Storm Gleeok', shadow: 'Dark Gleeok', final: 'Infernal Gleeok',
+  },
+  darknut: {
+    stone: 'Stone Darknut', forest: 'Green Darknut', desert: 'Sand Darknut',
+    mountain: 'Iron Darknut', underground: 'Deep Darknut', ocean: 'Abyssal Darknut',
+    sky: 'Sky Darknut', shadow: 'Shadow Darknut', final: 'Demon Darknut',
+  },
+  wizzrobe: {
+    stone: 'Stone Wizzrobe', forest: 'Thorn Wizzrobe', desert: 'Mirage Wizzrobe',
+    mountain: 'Frost Wizzrobe', underground: 'Crystal Wizzrobe', ocean: 'Tide Wizzrobe',
+    sky: 'Storm Wizzrobe', shadow: 'Void Wizzrobe', final: 'Dark Wizzrobe',
+  },
+  moldorm: {
+    stone: 'Stone Moldorm', forest: 'Root Moldorm', desert: 'Dune Moldorm',
+    mountain: 'Frost Moldorm', underground: 'Deep Moldorm', ocean: 'Abyssal Moldorm',
+    sky: 'Cloud Moldorm', shadow: 'Shadow Moldorm', final: 'Abyssal Moldorm',
+  },
+  genie: {
+    stone: 'Stone Genie', forest: 'Moss Genie', desert: 'Sand Genie',
+    mountain: 'Ice Genie', underground: 'Crystal Genie', ocean: 'Tidal Genie',
+    sky: 'Sky Genie', shadow: 'Dark Genie', final: 'Demon Genie',
+  },
+  liklike: {
+    stone: 'Stone Like Like', forest: 'Moss Like Like', desert: 'Dune Like Like',
+    mountain: 'Frost Like Like', underground: 'Deep Like Like', ocean: 'Abyssal Like Like',
+    sky: 'Cloud Like Like', shadow: 'Shadow Like Like', final: 'Abyssal Like Like',
+  },
+  aquamentus: {
+    stone: 'Stone Aquamentus', forest: 'Verdant Aquamentus', desert: 'Sand Aquamentus',
+    mountain: 'Frost Aquamentus', underground: 'Crystal Aquamentus', ocean: 'Tidal Aquamentus',
+    sky: 'Storm Aquamentus', shadow: 'Dark Aquamentus', final: 'Infernal Aquamentus',
+  },
+  manhandla: {
+    stone: 'Stone Manhandla', forest: 'Verdant Manhandla', desert: 'Dune Manhandla',
+    mountain: 'Frost Manhandla', underground: 'Crystal Manhandla', ocean: 'Abyssal Manhandla',
+    sky: 'Storm Manhandla', shadow: 'Dark Manhandla', final: 'Infernal Manhandla',
+  },
+  gleeok_variant: {
+    stone: 'Stone Ice Gleeok', forest: 'Forest Ice Gleeok', desert: 'Desert Ice Gleeok',
+    mountain: 'Glacier Gleeok', underground: 'Shadow Ice Gleeok', ocean: 'Abyssal Water Gleeok',
+    sky: 'Sky Ice Gleeok', shadow: 'Dark Ice Gleeok', final: 'Infernal Ice Gleeok',
+  },
+  agahnim: {
+    stone: 'Stone Agahnim', forest: 'Verdant Agahnim', desert: 'Sand Agahnim',
+    mountain: 'Frost Agahnim', underground: 'Crystal Agahnim', ocean: 'Tidal Agahnim',
+    sky: 'Storm Agahnim', shadow: 'Void Agahnim', final: 'Dark Agahnim',
+  },
+};
+
+function getStatsByDifficulty(diff) {
+  if (diff <= 2) return { hp: 20 + (diff - 1) * 10, damage: 3 + (diff - 1), defense: diff - 1 };
+  if (diff <= 4) return { hp: 40 + (diff - 3) * 20, damage: 4 + (diff - 3), defense: Math.min(diff - 2, 2) };
+  if (diff <= 6) return { hp: 80 + (diff - 5) * 35, damage: 5 + (diff - 5), defense: Math.min(diff - 4, 3) };
+  if (diff <= 8) return { hp: 150 + (diff - 7) * 50, damage: 6 + (diff - 7) * 2, defense: Math.min(diff - 5, 4) };
+  return { hp: 250 + (diff - 9) * 250, damage: 8 + (diff - 9) * 7, defense: Math.min(diff - 6, 5) };
+}
+
+function generatePhases(template, diff, baseDamage) {
+  const phases = [];
+  const scaledDmg = Math.round(baseDamage * 1.3);
+
+  switch (template) {
+    case 'gleeok':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'aoe', damage: scaledDmg, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2 },
+          { type: 'melee', damage: baseDamage, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+        ],
+      });
+      if (diff >= 4) {
+        phases.push({
+          hpThreshold: 60,
+          attacks: [
+            { type: 'aoe', damage: scaledDmg + 1, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5 },
+            { type: 'melee', damage: baseDamage + 1, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+          ],
+        });
+      }
+      if (diff >= 7) {
+        phases.push({
+          hpThreshold: 30,
+          attacks: [
+            { type: 'aoe', damage: scaledDmg + 2, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 3 },
+            { type: 'melee', damage: baseDamage + 2, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+          ],
+        });
+      }
+      break;
+
+    case 'gleeok_variant':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'aoe', damage: scaledDmg, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5 },
+          { type: 'melee', damage: baseDamage, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+        ],
+      });
+      if (diff >= 4) {
+        phases.push({
+          hpThreshold: 60,
+          attacks: [
+            { type: 'aoe', damage: scaledDmg + 1, cooldown: 2000, count: 3, spreadAngle: 360, projectileSpeed: 2 },
+            { type: 'melee', damage: baseDamage + 1, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+          ],
+        });
+      }
+      if (diff >= 7) {
+        phases.push({
+          hpThreshold: 30,
+          attacks: [
+            { type: 'aoe', damage: scaledDmg + 2, cooldown: 1400, count: 4, spreadAngle: 360, projectileSpeed: 2.5 },
+            { type: 'melee', damage: baseDamage + 2, cooldown: 1100, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+          ],
+        });
+      }
+      break;
+
+    case 'darknut':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'melee', damage: baseDamage, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+        ],
+      });
+      phases.push({
+        hpThreshold: 50,
+        attacks: [
+          { type: 'melee', damage: scaledDmg, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+          { type: 'melee', damage: scaledDmg, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0 },
+        ],
+      });
+      if (diff >= 6) {
+        phases.push({
+          hpThreshold: 25,
+          attacks: [
+            { type: 'melee', damage: scaledDmg + 2, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+            { type: 'aoe', damage: baseDamage, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0 },
+          ],
+        });
+      }
+      break;
+
+    case 'wizzrobe':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'projectile', damage: scaledDmg, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3 },
+        ],
+      });
+      if (diff >= 3) {
+        phases.push({
+          hpThreshold: 40,
+          attacks: [
+            { type: 'projectile', damage: scaledDmg + 1, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5 },
+            { type: 'summon', damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: diff < 6 ? 'keese' : 'stalfos' },
+          ],
+        });
+      }
+      break;
+
+    case 'moldorm':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'melee', damage: baseDamage, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+        ],
+      });
+      phases.push({
+        hpThreshold: 30,
+        attacks: [
+          { type: 'aoe', damage: scaledDmg, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0 },
+          { type: 'melee', damage: scaledDmg, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+        ],
+      });
+      break;
+
+    case 'genie':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'projectile', damage: scaledDmg, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5 },
+        ],
+      });
+      if (diff >= 3) {
+        phases.push({
+          hpThreshold: 50,
+          attacks: [
+            { type: 'projectile', damage: scaledDmg, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5 },
+          ],
+        });
+      }
+      if (diff >= 6) {
+        phases.push({
+          hpThreshold: 20,
+          attacks: [
+            { type: 'aoe', damage: scaledDmg + 1, cooldown: 1000, count: 3, spreadAngle: 120, projectileSpeed: 3 },
+            { type: 'projectile', damage: scaledDmg, cooldown: 800, count: 2, spreadAngle: 45, projectileSpeed: 3.5 },
+          ],
+        });
+      }
+      break;
+
+    case 'liklike':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'melee', damage: baseDamage, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+        ],
+      });
+      if (diff >= 3) {
+        phases.push({
+          hpThreshold: 40,
+          attacks: [
+            { type: 'melee', damage: scaledDmg, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+            { type: 'summon', damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: 'slime' },
+          ],
+        });
+      }
+      break;
+
+    case 'aquamentus':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'projectile', damage: scaledDmg, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2 },
+        ],
+      });
+      phases.push({
+        hpThreshold: 50,
+        attacks: [
+          { type: 'aoe', damage: scaledDmg, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5 },
+        ],
+      });
+      if (diff >= 6) {
+        phases.push({
+          hpThreshold: 20,
+          attacks: [
+            { type: 'aoe', damage: scaledDmg + 2, cooldown: 1200, count: 3, spreadAngle: 180, projectileSpeed: 3 },
+          ],
+        });
+      }
+      break;
+
+    case 'manhandla':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'melee', damage: baseDamage, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0 },
+        ],
+      });
+      if (diff >= 3) {
+        phases.push({
+          hpThreshold: 30,
+          attacks: [
+            { type: 'aoe', damage: scaledDmg, cooldown: 2000, count: 4, spreadAngle: 360, projectileSpeed: 2 },
+            { type: 'melee', damage: scaledDmg, cooldown: 800, count: 4, spreadAngle: 360, projectileSpeed: 0 },
+          ],
+        });
+      }
+      break;
+
+    case 'agahnim':
+      phases.push({
+        hpThreshold: 100,
+        attacks: [
+          { type: 'projectile', damage: scaledDmg, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5 },
+        ],
+      });
+      phases.push({
+        hpThreshold: 60,
+        attacks: [
+          { type: 'melee', damage: scaledDmg, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+          { type: 'projectile', damage: scaledDmg, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5 },
+        ],
+      });
+      phases.push({
+        hpThreshold: 30,
+        attacks: [
+          { type: 'projectile', damage: scaledDmg, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5 },
+        ],
+      });
+      phases.push({
+        hpThreshold: 10,
+        attacks: [
+          { type: 'melee', damage: scaledDmg + 2, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0 },
+          { type: 'aoe', damage: scaledDmg, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3 },
+        ],
+      });
+      break;
+  }
+
+  return phases;
+}
+
+function generateDrops(template, diff) {
+  const drops = [{ item: 'heart_piece', weight: 100 }];
+
+  if (diff >= 2) drops.push({ item: 'healing_potion', weight: 30 });
+  if (diff >= 4) drops.push({ item: 'super_potion', weight: 15 });
+  if (diff >= 6) drops.push({ item: 'magic_potion', weight: 10 });
+  if (diff >= 8) drops.push({ item: 'heart_piece', weight: 20 });
+
+  switch (template) {
+    case 'gleeok':
+    case 'gleeok_variant':
+      if (diff >= 5) drops.push({ item: 'fire_rod', weight: 5 });
+      if (diff >= 8) drops.push({ item: 'master_sword', weight: 3 });
+      break;
+    case 'darknut':
+      if (diff >= 3) drops.push({ item: 'hammer', weight: 8 });
+      if (diff >= 7) drops.push({ item: 'magic_sword', weight: 3 });
+      break;
+    case 'wizzrobe':
+      if (diff >= 4) drops.push({ item: 'ice_rod', weight: 5 });
+      if (diff >= 7) drops.push({ item: 'magic_potion', weight: 15 });
+      break;
+    case 'agahnim':
+      if (diff >= 6) drops.push({ item: 'magic_sword', weight: 5 });
+      break;
+    case 'aquamentus':
+      if (diff >= 5) drops.push({ item: 'fire_rod', weight: 5 });
+      break;
+    case 'manhandla':
+      if (diff >= 4) drops.push({ item: 'boomerang', weight: 5 });
+      break;
+    case 'moldorm':
+      if (diff >= 6) drops.push({ item: 'hookshot', weight: 3 });
+      break;
+    case 'genie':
+      if (diff >= 5) drops.push({ item: 'magic_crystal', weight: 10 });
+      break;
+    case 'liklike':
+      if (diff >= 3) drops.push({ item: 'super_potion', weight: 20 });
+      break;
+  }
+
+  return drops;
+}
+
+function generateBosses() {
+  const bosses = [];
+  const descriptions = {
+    gleeok: 'A multi-headed dragon whose fiery breath devastates all.',
+    darknut: 'A heavily-armored knight wielding a massive sword.',
+    wizzrobe: 'A teleporting mage who commands destructive magic.',
+    moldorm: 'A giant segmented worm that charges relentlessly.',
+    genie: 'A lamp spirit that unleashes devastating elemental blasts.',
+    liklike: 'A voracious worm that steals hearts and shields.',
+    aquamentus: 'A dragon that breathes flames at everything in sight.',
+    manhandla: 'A spinning plant monster with razor-sharp limbs.',
+    gleeok_variant: 'A spectral dragon wielding ice and shadow.',
+    agahnim: 'A dark mage protected by impenetrable barriers.',
+  };
+
+  for (let i = 0; i < 100; i++) {
+    const dungeon = DUNGEONS[i];
+    const template = templateAssignments[i];
+    const theme = dungeon.theme;
+    const diff = dungeon.difficulty;
+    const stats = getStatsByDifficulty(diff);
+    const colors = themeColors[theme];
+
+    let hp = stats.hp;
+    let damage = stats.damage;
+    let defense = stats.defense;
+    let speed = 0;
+    let behavior = 'chase';
+    let drawFunction = 'drawGeneric';
+
+    switch (template) {
+      case 'gleeok':
+      case 'gleeok_variant':
+        hp = Math.round(hp * 1.3);
+        speed = 1.5;
+        behavior = 'charge';
+        drawFunction = 'drawGleeok';
+        break;
+      case 'darknut':
+        defense = Math.min(defense + 1, 5);
+        speed = 1.2;
+        behavior = 'chase';
+        drawFunction = 'drawDarknut';
+        break;
+      case 'wizzrobe':
+        damage = Math.round(damage * 0.8);
+        defense = Math.max(defense - 1, 0);
+        speed = 0;
+        behavior = 'teleport';
+        drawFunction = 'drawWizzrobe';
+        break;
+      case 'moldorm':
+        hp = Math.round(hp * 0.7);
+        speed = 2.0;
+        behavior = 'charge';
+        break;
+      case 'genie':
+        hp = Math.round(hp * 1.1);
+        speed = 0;
+        behavior = 'stationary';
+        break;
+      case 'liklike':
+        hp = Math.round(hp * 0.8);
+        speed = 1.0;
+        behavior = 'chase';
+        break;
+      case 'aquamentus':
+        hp = Math.round(hp * 1.2);
+        speed = 0;
+        behavior = 'stationary';
+        drawFunction = 'drawGleeok';
+        break;
+      case 'manhandla':
+        speed = 1.8;
+        behavior = 'charge';
+        break;
+      case 'agahnim':
+        damage = Math.round(damage * 1.2);
+        defense = Math.min(defense + 1, 5);
+        speed = 0;
+        behavior = 'stationary';
+        drawFunction = 'drawWizzrobe';
+        break;
+    }
+
+    const name = nameTemplates[template] ? nameTemplates[template][theme] : (theme + ' ' + template);
+    const phases = generatePhases(template, diff, damage);
+    const drops = generateDrops(template, diff);
+
+    bosses.push({
+      id: i, name, hp, damage, defense, speed, colors, behavior,
+      drawFunction, phases, drops, description: descriptions[template],
+    });
+  }
+
+  return bosses;
+}
+
+const bosses = generateBosses();
+
+let output = "'use strict';\n\nconst BOSS_TYPES = [\n";
+
+for (const boss of bosses) {
+  output += '  { id: ' + boss.id + ', ';
+  output += "name: '" + boss.name + "', ";
+  output += 'hp: ' + boss.hp + ', ';
+  output += 'damage: ' + boss.damage + ', ';
+  output += 'defense: ' + boss.defense + ', ';
+  output += 'speed: ' + boss.speed + ', ';
+  output += 'colors: { body: "' + boss.colors.body + '", eye: "' + boss.colors.eye + '", accent: "' + boss.colors.accent + '" }, ';
+  output += 'behavior: "' + boss.behavior + '", ';
+  output += 'drawFunction: "' + boss.drawFunction + '", ';
+  output += 'description: "' + boss.description + '", ';
+
+  output += 'phases: [';
+  for (let p = 0; p < boss.phases.length; p++) {
+    const phase = boss.phases[p];
+    output += '{ hpThreshold: ' + phase.hpThreshold + ', attacks: [';
+    for (let a = 0; a < phase.attacks.length; a++) {
+      const attack = phase.attacks[a];
+      output += '{ type: "' + attack.type + '", damage: ' + attack.damage + ', cooldown: ' + attack.cooldown + ', count: ' + attack.count + ', spreadAngle: ' + attack.spreadAngle + ', projectileSpeed: ' + attack.projectileSpeed;
+      if (attack.enemyType) output += ', enemyType: "' + attack.enemyType + '"';
+      output += '}';
+      if (a < phase.attacks.length - 1) output += ', ';
+    }
+    output += ']}';
+    if (p < boss.phases.length - 1) output += ', ';
+  }
+  output += '], ';
+
+  output += 'drops: [';
+  for (let d = 0; d < boss.drops.length; d++) {
+    const drop = boss.drops[d];
+    output += '{ item: "' + drop.item + '", weight: ' + drop.weight + ' }';
+    if (d < boss.drops.length - 1) output += ', ';
+  }
+  output += ']';
+  output += ' },\n';
+}
+
+output += '];\n\n';
+output += 'function getBossType(id) {\n';
+output += '  return BOSS_TYPES.find(b => b.id === id);\n';
+output += '}\n\n';
+output += 'module.exports = { BOSS_TYPES, getBossType };\n';
+
+fs.writeFileSync(path.join(__dirname, 'src/data/bosses.js'), output);
+console.log('Generated ' + bosses.length + ' bosses successfully.');
+
+const { BOSS_TYPES } = require('./src/data/bosses');
+console.log('Verification: ' + BOSS_TYPES.length + ' bosses loaded.');
\ No newline at end of file
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..79035a0
--- /dev/null
+++ b/index.html
@@ -0,0 +1,263 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Zelda Dungeon Quest</title>
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    body {
+      background: #111;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      height: 100vh;
+      overflow: hidden;
+      font-family: monospace;
+      user-select: none;
+    }
+    #game-container {
+      position: relative;
+      width: 640px;
+      height: 480px;
+    }
+    canvas {
+      border: 2px solid #555;
+      image-rendering: pixelated;
+      display: block;
+    }
+    #menu-overlay {
+      position: absolute;
+      top: 0; left: 0;
+      width: 640px;
+      height: 480px;
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+      z-index: 10;
+    }
+    #menu-overlay.active {
+      pointer-events: auto;
+    }
+    .menu-title {
+      font-size: 36px;
+      font-weight: bold;
+      color: #FFD700;
+      text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
+      margin-bottom: 20px;
+    }
+    .menu-subtitle {
+      font-size: 16px;
+      color: #AAAAAA;
+      margin-bottom: 30px;
+    }
+    .menu-button {
+      font-family: monospace;
+      font-size: 16px;
+      color: #FFFFFF;
+      background: rgba(0,0,0,0.6);
+      border: 2px solid #FFD700;
+      padding: 8px 24px;
+      margin: 4px 0;
+      cursor: pointer;
+      transition: all 0.15s;
+      pointer-events: auto;
+    }
+    .menu-button:hover, .menu-button.selected {
+      background: #FFD700;
+      color: #000;
+    }
+    .menu-button:disabled {
+      opacity: 0.3;
+      cursor: default;
+      border-color: #444;
+    }
+    .menu-button:disabled:hover {
+      background: rgba(0,0,0,0.6);
+      color: #FFFFFF;
+    }
+    .dungeon-grid {
+      display: grid;
+      grid-template-columns: repeat(10, 1fr);
+      gap: 3px;
+      max-width: 600px;
+      margin: 10px 0;
+    }
+    .dungeon-cell {
+      width: 56px;
+      height: 42px;
+      font-family: monospace;
+      font-size: 10px;
+      text-align: center;
+      line-height: 42px;
+      cursor: pointer;
+      border: 1px solid #555;
+      transition: all 0.1s;
+      pointer-events: auto;
+    }
+    .dungeon-cell:hover:not(.locked) {
+      transform: scale(1.1);
+      border-color: #FFD700;
+    }
+    .dungeon-cell.selected {
+      border: 2px solid #FFD700;
+      box-shadow: 0 0 6px rgba(255,215,0,0.5);
+    }
+    .dungeon-cell.locked {
+      opacity: 0.3;
+      cursor: default;
+    }
+    .dungeon-cell.completed {
+      border-color: #00FF00;
+    }
+    .dungeon-cell.completed::after {
+      content: '✓';
+      position: absolute;
+      bottom: 1px;
+      right: 2px;
+      font-size: 8px;
+      color: #00FF00;
+    }
+    .filter-tabs {
+      display: flex;
+      gap: 2px;
+      margin-bottom: 10px;
+    }
+    .filter-tab {
+      font-family: monospace;
+      font-size: 11px;
+      padding: 3px 8px;
+      background: rgba(0,0,0,0.5);
+      border: 1px solid #555;
+      color: #AAA;
+      cursor: pointer;
+      pointer-events: auto;
+    }
+    .filter-tab.active {
+      background: #FFD700;
+      color: #000;
+      border-color: #FFD700;
+    }
+    .info-panel {
+      font-family: monospace;
+      font-size: 12px;
+      color: #CCC;
+      background: rgba(0,0,0,0.7);
+      border: 1px solid #555;
+      padding: 8px 12px;
+      margin-top: 8px;
+      max-width: 400px;
+      text-align: center;
+      pointer-events: auto;
+    }
+    .info-panel .name {
+      color: #FFD700;
+      font-weight: bold;
+      font-size: 14px;
+    }
+    .info-panel .difficulty {
+      color: #FF6347;
+    }
+    .info-panel .theme {
+      color: #87CEEB;
+    }
+    .info-panel .rooms {
+      color: #90EE90;
+    }
+    .controls-hint {
+      font-size: 11px;
+      color: #888;
+      margin-top: 15px;
+    }
+    .debug-overlay {
+      position: absolute;
+      top: 0; left: 0;
+      width: 640px;
+      height: 480px;
+      pointer-events: none;
+      z-index: 20;
+      font-family: monospace;
+      font-size: 10px;
+      color: #0F0;
+      display: none;
+    }
+    .debug-overlay.visible {
+      display: block;
+    }
+    #debug-canvas {
+      position: absolute;
+      top: 0; left: 0;
+      pointer-events: none;
+      z-index: 19;
+      display: none;
+    }
+    #debug-canvas.visible {
+      display: block;
+    }
+  </style>
+</head>
+<body>
+  <div id="game-container">
+    <canvas id="game" width="640" height="480"></canvas>
+    <canvas id="debug-canvas" width="640" height="480"></canvas>
+    <div id="menu-overlay"></div>
+    <div id="debug-overlay" class="debug-overlay"></div>
+  </div>
+
+  <!-- Browser polyfill: enables module.exports/require in browser -->
+  <script src="src/browser-polyfill.js"></script>
+
+  <!-- Core -->
+  <script src="src/core/constants.js"></script>
+  <script src="src/core/rng.js"></script>
+  <script src="src/core/utils.js"></script>
+
+  <!-- Data -->
+  <script src="src/data/themes.js"></script>
+  <script src="src/data/dungeons.js"></script>
+  <script src="src/data/enemies.js"></script>
+  <script src="src/data/weapons.js"></script>
+  <script src="src/data/bosses.js"></script>
+  <script src="src/data/items.js"></script>
+
+  <!-- Generator -->
+  <script src="src/generator/rooms.js"></script>
+  <script src="src/generator/puzzles.js"></script>
+  <script src="src/generator/placement.js"></script>
+  <script src="src/generator/dungeon.js"></script>
+
+  <!-- Save -->
+  <script src="src/save/save.js"></script>
+
+  <!-- Game Engine -->
+  <script src="src/game/state.js"></script>
+  <script src="src/game/movement.js"></script>
+  <script src="src/game/combat.js"></script>
+  <script src="src/game/ai.js"></script>
+  <script src="src/game/items.js"></script>
+  <script src="src/game/transitions.js"></script>
+
+  <!-- Input -->
+  <script src="src/input/keyboard.js"></script>
+  <script src="src/input/actions.js"></script>
+
+  <!-- Rendering -->
+  <script src="src/rendering/renderer.js"></script>
+  <script src="src/rendering/draw-enemies.js"></script>
+  <script src="src/rendering/draw-bosses.js"></script>
+  <script src="src/rendering/draw-weapons.js"></script>
+  <script src="src/rendering/hud.js"></script>
+  <script src="src/rendering/effects.js"></script>
+
+  <!-- Menu -->
+  <script src="src/menu/title-screen.js"></script>
+  <script src="src/menu/dungeon-select.js"></script>
+  <script src="src/menu/hud-overlay.js"></script>
+  <script src="src/menu/screens.js"></script>
+
+  <!-- Bootstrap -->
+  <script src="src/app.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/main.js b/main.js
new file mode 100644
index 0000000..ab66280
--- /dev/null
+++ b/main.js
@@ -0,0 +1,22 @@
+const { app, BrowserWindow } = require("electron");
+const path = require("path");
+
+function createWindow() {
+  const win = new BrowserWindow({
+    width: 800,
+    height: 600,
+    webPreferences: {
+      nodeIntegration: false,
+      contextIsolation: true,
+      preload: path.join(__dirname, "preload.js"),
+    },
+  });
+
+  win.loadFile(path.join(__dirname, "index.html"));
+}
+
+app.whenReady().then(createWindow);
+
+app.on("window-all-closed", () => {
+  if (process.platform !== "darwin") app.quit();
+});
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..aa1cf86
--- /dev/null
+++ b/package-lock.json
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+      "license": "MIT",
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+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..c70452c
--- /dev/null
+++ b/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "zelda-dungeon",
+  "version": "1.0.0",
+  "description": "A top-down Legend of Zelda-style dungeon game",
+  "main": "main.js",
+  "scripts": {
+    "start": "electron . --no-sandbox",
+    "start:safe": "ELECTRON_DISABLE_SANDBOX=1 electron . --no-sandbox",
+    "dev": "npx serve . -p 3000"
+  },
+  "dependencies": {
+    "electron": "^28.0.0"
+  }
+}
\ No newline at end of file
diff --git a/preload.js b/preload.js
new file mode 100644
index 0000000..544646f
--- /dev/null
+++ b/preload.js
@@ -0,0 +1,8 @@
+const { contextBridge, ipcRenderer } = require("electron");
+
+contextBridge.exposeInMainWorld("electronAPI", {
+  saveGame: (data) => ipcRenderer.send('save-game', data),
+  loadGame: () => ipcRenderer.invoke('load-game'),
+  clearSave: () => ipcRenderer.send('clear-save'),
+  hasSave: () => ipcRenderer.invoke('has-save'),
+});
\ No newline at end of file
diff --git a/renderer.js b/renderer.js
new file mode 100644
index 0000000..51ae345
--- /dev/null
+++ b/renderer.js
@@ -0,0 +1,963 @@
+'use strict';
+
+// === SETUP ===
+const canvas = document.getElementById('game');
+const ctx = canvas.getContext('2d');
+
+// === CONSTANTS ===
+const TILE = 32;
+const COLS = 20;
+const ROWS = 15;
+const T_FLOOR = 0;
+const T_WALL = 1;
+const T_TORCH = 5;
+
+const MOVE_COOLDOWN = 100;
+const ATTACK_COOLDOWN = 400;
+const ATTACK_ANIM = 250;
+const ENEMY_MOVE_INTERVAL = 800;
+const ENEMY_ATTACK_INTERVAL = 1500;
+const HIT_FLASH = 200;
+const MESSAGE_DURATION = 2000;
+
+const COLORS = {
+  floor: '#C4A265',
+  floorDark: '#A8884D',
+  wall: '#505050',
+  wallTop: '#6E6E6E',
+  wallFront: '#5A5A5A',
+  wallBottom: '#383838',
+  playerBody: '#228B22',
+  playerTunic: '#1A6B1A',
+  playerHead: '#FFD700',
+  playerEyes: '#000080',
+  playerHair: '#8B4513',
+  rock: '#888888',
+  rockDark: '#666666',
+  rockLight: '#AAAAAA',
+  target: '#FFD700',
+  targetGlow: 'rgba(255,215,0,0.3)',
+  chestClosed: '#8B4513',
+  chestGold: '#DAA520',
+  chestOpen: '#A0522D',
+  swordBlade: '#C0C0C0',
+  swordHandle: '#8B4513',
+  swordGem: '#FF0000',
+  goblin: '#8B0000',
+  goblinLight: '#CC2222',
+  goblinEye: '#00FF00',
+  goblinTeeth: '#FFFFFF',
+  torchStick: '#654321',
+  torchFlame: '#FF8C00',
+  torchGlow: 'rgba(255,140,0,0.15)',
+  door: '#654321',
+  doorFrame: '#8B7355',
+  doorKnob: '#FFD700',
+  heart: '#FF0000',
+  heartEmpty: '#444444',
+  msgText: '#FFFFFF',
+  overlay: 'rgba(0,0,0,0.75)',
+  hitFlash: 'rgba(255,0,0,0.3)',
+};
+
+const DIRS = [
+  { x: 0, y: 1 },
+  { x: 0, y: -1 },
+  { x: -1, y: 0 },
+  { x: 1, y: 0 },
+];
+const DIR_NAMES = ['Down', 'Up', 'Left', 'Right'];
+
+// === HELPER FUNCTIONS ===
+function createBorderLayout(walls, torches) {
+  const layout = [];
+  for (let y = 0; y < ROWS; y++) {
+    const row = [];
+    for (let x = 0; x < COLS; x++) {
+      if (y === 0 || y === ROWS - 1 || x === 0 || x === COLS - 1) {
+        row.push(T_WALL);
+      } else {
+        row.push(T_FLOOR);
+      }
+    }
+    layout.push(row);
+  }
+  for (const [wx, wy] of walls) {
+    if (wy >= 0 && wy < ROWS && wx >= 0 && wx < COLS) {
+      layout[wy][wx] = T_WALL;
+    }
+  }
+  for (const [tx, ty] of torches) {
+    if (ty >= 0 && ty < ROWS && tx >= 0 && tx < COLS) {
+      layout[ty][tx] = T_TORCH;
+    }
+  }
+  return layout;
+}
+
+function drawHeart(ctx, cx, cy, size, filled) {
+  ctx.save();
+  ctx.fillStyle = filled ? COLORS.heart : COLORS.heartEmpty;
+  ctx.beginPath();
+  const s = size * 0.5;
+  ctx.moveTo(cx, cy + s * 0.3);
+  ctx.bezierCurveTo(cx, cy - s * 0.5, cx - s * 1.2, cy - s * 0.5, cx - s, cy + s * 0.1);
+  ctx.bezierCurveTo(cx - s, cy + s * 0.7, cx, cy + s * 1.1, cx, cy + s * 1.1);
+  ctx.bezierCurveTo(cx, cy + s * 0.7, cx + s, cy + s * 0.1, cx + s, cy + s * 0.1);
+  ctx.bezierCurveTo(cx + s * 1.2, cy - s * 0.5, cx, cy - s * 0.5, cx, cy + s * 0.3);
+  ctx.closePath();
+  ctx.fill();
+  ctx.restore();
+}
+
+// === ROOM DEFINITIONS ===
+const ROOMS = [
+  // Room 1: The Stone Chamber (Rock Puzzle)
+  {
+    name: 'The Stone Chamber',
+    layout: createBorderLayout(
+      [[5,1],[6,1],[7,1],[8,1],[9,1],[5,2],[6,2],[7,2],[8,2],[9,2],[5,3],[6,3],[7,3],[8,3],[9,3],[5,4],[6,4],[7,4],[8,4],[9,4],[5,7],[6,7],[7,7],[8,7],[9,7],[5,8],[6,8],[7,8],[8,8],[9,8],[5,9],[6,9],[7,9],[8,9],[9,9],[5,10],[6,10],[7,10],[8,10],[9,10]],
+      [[2,1],[17,1],[2,13],[17,13]]
+    ),
+    playerStart: { x: 1, y: 1 },
+    rocks: [{ x: 11, y: 4 }],
+    targets: [{ x: 11, y: 3 }],
+    chests: [],
+    enemies: [],
+    exit: { x: 10, y: 14, dir: 0 },
+    torches: [[2, 1], [17, 1], [2, 13], [17, 13]],
+    exitOpen: false,
+  },
+  // Room 2: The Armory (Sword Chest)
+  {
+    name: 'The Armory',
+    layout: createBorderLayout(
+      [[9,6],[10,6],[11,6],[9,8],[10,8],[11,8]],
+      [[2,1],[17,1],[2,13],[17,13]]
+    ),
+    playerStart: { x: 1, y: 7 },
+    rocks: [],
+    targets: [],
+    chests: [{ x: 10, y: 7, opened: false }],
+    enemies: [],
+    exit: { x: 18, y: 7, dir: 3 },
+    torches: [[2, 1], [17, 1], [2, 13], [17, 13]],
+    exitOpen: true,
+  },
+  // Room 3: The Goblin Lair (Boss Fight)
+  {
+    name: 'The Goblin Lair',
+    layout: createBorderLayout(
+      [[5,1],[6,1],[7,1],[8,1],[9,1],[10,1],[11,1],[12,1],[13,1],[5,12],[6,12],[7,12],[8,12],[9,12],[10,12],[11,12],[12,12],[13,12]],
+      [[2,1],[17,1],[2,13],[17,13]]
+    ),
+    playerStart: { x: 1, y: 7 },
+    rocks: [],
+    targets: [],
+    chests: [],
+    enemies: [{ x: 16, y: 7, hp: 3, maxHp: 3, moveTimer: 0, attackTimer: 0, hitTimer: 0 }],
+    exit: null,
+    torches: [[2, 1], [17, 1], [2, 13], [17, 13]],
+    exitOpen: false,
+  },
+];
+
+// === GAME STATE ===
+let game = {
+  roomIdx: 0,
+  layout: null,
+  player: {
+    x: 0, y: 0,
+    hp: 12, maxHp: 12,
+    hasSword: false,
+    dir: 0,
+    moveTimer: 0,
+    attackTimer: 0,
+    attackAnim: 0,
+    hitTimer: 0,
+  },
+  rocks: [],
+  targets: [],
+  chests: [],
+  enemies: [],
+  exit: null,
+  exitOpen: false,
+  torches: [],
+  message: '',
+  messageTimer: 0,
+  won: false,
+  dead: false,
+  moveCooldown: 0,
+};
+
+// === INPUT ===
+const keys = {};
+document.addEventListener('keydown', (e) => {
+  if (['ArrowUp','ArrowDown','ArrowLeft','ArrowRight','Space','Enter'].includes(e.code)) {
+    e.preventDefault();
+  }
+  keys[e.code] = true;
+
+  if (e.code === 'Space') {
+    if (game.won || game.dead) return;
+    tryAttack();
+  }
+  if (e.code === 'Enter' && (game.won || game.dead)) {
+    restart();
+  }
+});
+document.addEventListener('keyup', (e) => {
+  keys[e.code] = false;
+});
+
+// === GAME LOGIC ===
+function loadRoom(idx) {
+  game.roomIdx = idx;
+  const room = ROOMS[idx];
+  game.layout = room.layout.map(row => [...row]);
+  game.player.x = room.playerStart.x;
+  game.player.y = room.playerStart.y;
+  game.rocks = room.rocks.map(r => ({ ...r }));
+  game.targets = room.targets.map(t => ({ ...t }));
+  game.chests = room.chests.map(c => ({ ...c }));
+  game.enemies = room.enemies.map(e => ({ ...e, moveTimer: ENEMY_MOVE_INTERVAL, attackTimer: ENEMY_ATTACK_INTERVAL, hitTimer: 0 }));
+  game.exit = room.exit ? { ...room.exit } : null;
+  game.exitOpen = room.exitOpen;
+  game.torches = room.torches ? room.torches.map(t => [...t]) : [];
+  game.message = room.name;
+  game.messageTimer = MESSAGE_DURATION;
+}
+
+function tryMove(dx, dy) {
+  if (game.won || game.dead) return;
+
+  const px = game.player.x;
+  const py = game.player.y;
+  const nx = px + dx;
+  const ny = py + dy;
+
+  if (dx === 0 && dy === 0) return;
+
+  if (dy === 1 && game.player.dir !== 0) game.player.dir = 0;
+  else if (dy === -1 && game.player.dir !== 1) game.player.dir = 1;
+  else if (dx === -1 && game.player.dir !== 2) game.player.dir = 2;
+  else if (dx === 1 && game.player.dir !== 3) game.player.dir = 3;
+
+  if (nx < 0 || nx >= COLS || ny < 0 || ny >= ROWS) return;
+
+  // Check exit before wall check so doors on border walls work
+  if (game.exit && game.exit.x === nx && game.exit.y === ny) {
+    tryExit();
+    return;
+  }
+
+  if (game.layout[ny][nx] === T_WALL) return;
+
+  const rock = game.rocks.find(r => r.x === nx && r.y === ny);
+  if (rock) {
+    const rnx = nx + dx;
+    const rny = ny + dy;
+    if (rnx < 0 || rnx >= COLS || rny < 0 || rny >= ROWS) return;
+    if (game.layout[rny][rnx] === T_WALL) return;
+    if (game.rocks.find(r => r.x === rnx && r.y === rny)) return;
+    if (game.enemies.find(e => e.x === rnx && e.y === rny)) return;
+    if (game.exit && game.exit.x === rnx && game.exit.y === rny) return;
+    if (game.chests.find(c => c.x === rnx && c.y === rny)) return;
+    rock.x = rnx;
+    rock.y = rny;
+  }
+
+  if (game.enemies.find(e => e.x === nx && e.y === ny)) return;
+
+  game.player.x = nx;
+  game.player.y = ny;
+
+  const chest = game.chests.find(c => c.x === nx && c.y === ny);
+  if (chest && !chest.opened) {
+    openChest(chest);
+    return;
+  }
+
+  checkPuzzle();
+}
+
+function openChest(chest) {
+  chest.opened = true;
+  game.player.hasSword = true;
+  game.player.hp = Math.min(game.player.hp + 6, game.player.maxHp);
+  game.message = 'You found the Master Sword! (+6 HP)';
+  game.messageTimer = MESSAGE_DURATION;
+}
+
+function tryAttack() {
+  if (game.player.attackTimer > 0) return;
+
+  if (!game.player.hasSword) {
+    game.message = 'You need a weapon!';
+    game.messageTimer = MESSAGE_DURATION;
+    return;
+  }
+
+  game.player.attackAnim = ATTACK_ANIM;
+  game.player.attackTimer = ATTACK_COOLDOWN;
+
+  const dir = DIRS[game.player.dir];
+  const ax = game.player.x + dir.x;
+  const ay = game.player.y + dir.y;
+
+  for (const enemy of game.enemies) {
+    if (enemy.x === ax && enemy.y === ay) {
+      enemy.hp -= 1;
+      enemy.hitTimer = HIT_FLASH;
+      if (enemy.hp <= 0) {
+        game.message = 'Enemy defeated!';
+        game.messageTimer = MESSAGE_DURATION;
+      }
+    }
+  }
+
+  game.enemies = game.enemies.filter(e => e.hp > 0);
+
+  if (game.enemies.length === 0 && !game.exit) {
+    game.won = true;
+  }
+}
+
+function updateEnemies(dt) {
+  for (const enemy of [...game.enemies]) {
+    enemy.moveTimer -= dt;
+    enemy.attackTimer -= dt;
+    if (enemy.hitTimer > 0) enemy.hitTimer -= dt;
+
+    if (enemy.moveTimer <= 0) {
+      enemy.moveTimer = ENEMY_MOVE_INTERVAL;
+
+      const dx = game.player.x - enemy.x;
+      const dy = game.player.y - enemy.y;
+
+      let bestDir = null;
+      let bestDist = Math.abs(dx) + Math.abs(dy);
+
+      for (let d = 0; d < 4; d++) {
+        const nx = enemy.x + DIRS[d].x;
+        const ny = enemy.y + DIRS[d].y;
+
+        if (nx < 0 || nx >= COLS || ny < 0 || ny >= ROWS) continue;
+        if (game.layout[ny][nx] === T_WALL) continue;
+        if (game.rocks.find(r => r.x === nx && r.y === ny)) continue;
+        if (game.enemies.find(e => e !== enemy && e.x === nx && e.y === ny)) continue;
+        if (game.chests.find(c => c.x === nx && c.y === ny)) continue;
+
+        const newDist = Math.abs(game.player.x - nx) + Math.abs(game.player.y - ny);
+        if (newDist < bestDist) {
+          bestDist = newDist;
+          bestDir = d;
+        }
+      }
+
+      if (bestDir !== null) {
+        enemy.x += DIRS[bestDir].x;
+        enemy.y += DIRS[bestDir].y;
+      }
+    }
+
+    if (Math.abs(enemy.x - game.player.x) + Math.abs(enemy.y - game.player.y) === 1) {
+      if (enemy.attackTimer <= 0) {
+        enemy.attackTimer = ENEMY_ATTACK_INTERVAL;
+        game.player.hp -= 2;
+        game.player.hitTimer = HIT_FLASH;
+        game.message = 'You were hit!';
+        game.messageTimer = MESSAGE_DURATION;
+        if (game.player.hp <= 0) {
+          game.player.hp = 0;
+          game.dead = true;
+        }
+      }
+    }
+  }
+}
+
+function tryExit() {
+  if (!game.exitOpen) {
+    game.message = 'The door is locked!';
+    game.messageTimer = MESSAGE_DURATION;
+    return;
+  }
+
+  const nextRoom = game.roomIdx + 1;
+  if (nextRoom >= ROOMS.length) {
+    game.won = true;
+    return;
+  }
+
+  loadRoom(nextRoom);
+}
+
+function checkPuzzle() {
+  if (game.targets.length === 0) return;
+  const allSolved = game.targets.every(t => game.rocks.some(r => r.x === t.x && r.y === t.y));
+  if (allSolved) {
+    game.exitOpen = true;
+    game.message = 'The door has opened!';
+    game.messageTimer = MESSAGE_DURATION;
+  }
+}
+
+function showMessage(text) {
+  game.message = text;
+  game.messageTimer = MESSAGE_DURATION;
+}
+
+function restart() {
+  game.won = false;
+  game.dead = false;
+  game.player.hp = game.player.maxHp;
+  game.player.hasSword = false;
+  game.player.attackTimer = 0;
+  game.player.attackAnim = 0;
+  game.player.hitTimer = 0;
+  game.message = '';
+  game.messageTimer = 0;
+  loadRoom(0);
+}
+
+// === RENDERING ===
+function drawFloor(layout) {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (layout[y][x] === T_FLOOR) {
+        const shade = ((x + y) % 2 === 0) ? COLORS.floor : COLORS.floorDark;
+        ctx.fillStyle = shade;
+        ctx.fillRect(x * TILE, y * TILE, TILE, TILE);
+      }
+    }
+  }
+}
+
+function drawWalls(layout) {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (layout[y][x] === T_WALL) {
+        const px = x * TILE;
+        const py = y * TILE;
+
+        ctx.fillStyle = COLORS.wall;
+        ctx.fillRect(px, py, TILE, TILE);
+
+        ctx.fillStyle = COLORS.wallTop;
+        ctx.fillRect(px, py, TILE, 3);
+
+        ctx.fillStyle = COLORS.wallFront;
+        ctx.fillRect(px, py + 3, TILE, TILE - 6);
+
+        ctx.fillStyle = COLORS.wallBottom;
+        ctx.fillRect(px, py + TILE - 3, TILE, 3);
+
+        ctx.strokeStyle = '#404040';
+        ctx.lineWidth = 0.5;
+        ctx.strokeRect(px + 0.5, py + 0.5, TILE - 1, TILE - 1);
+      }
+    }
+  }
+}
+
+function drawTorches(layout) {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (layout[y][x] === T_TORCH) {
+        const cx = x * TILE + TILE / 2;
+        const cy = y * TILE + TILE / 2;
+
+        ctx.fillStyle = COLORS.torchGlow;
+        ctx.beginPath();
+        ctx.arc(cx, cy, TILE * 1.2, 0, Math.PI * 2);
+        ctx.fill();
+
+        ctx.fillStyle = COLORS.floor;
+        ctx.fillRect(x * TILE, y * TILE, TILE, TILE);
+
+        ctx.fillStyle = COLORS.torchStick;
+        ctx.fillRect(cx - 2, cy + 2, 4, TILE * 0.4);
+
+        ctx.fillStyle = COLORS.torchFlame;
+        ctx.beginPath();
+        ctx.ellipse(cx, cy - 4, 4, 6, 0, 0, Math.PI * 2);
+        ctx.fill();
+
+        ctx.fillStyle = '#FFFF00';
+        ctx.beginPath();
+        ctx.ellipse(cx, cy - 3, 2, 3, 0, 0, Math.PI * 2);
+        ctx.fill();
+      }
+    }
+  }
+}
+
+function drawTargets() {
+  for (const target of game.targets) {
+    const cx = target.x * TILE + TILE / 2;
+    const cy = target.y * TILE + TILE / 2;
+    const occupied = game.rocks.some(r => r.x === target.x && r.y === target.y);
+
+    ctx.fillStyle = COLORS.targetGlow;
+    ctx.beginPath();
+    ctx.arc(cx, cy, TILE * 0.7, 0, Math.PI * 2);
+    ctx.fill();
+
+    ctx.fillStyle = occupied ? '#00FF00' : COLORS.target;
+    ctx.beginPath();
+    ctx.arc(cx, cy, TILE * 0.3, 0, Math.PI * 2);
+    ctx.fill();
+
+    ctx.strokeStyle = occupied ? '#00AA00' : '#CC9900';
+    ctx.lineWidth = 1.5;
+    ctx.beginPath();
+    ctx.arc(cx, cy, TILE * 0.3, 0, Math.PI * 2);
+    ctx.stroke();
+  }
+}
+
+function drawRocks() {
+  for (const rock of game.rocks) {
+    const px = rock.x * TILE;
+    const py = rock.y * TILE;
+    const inset = 3;
+
+    ctx.fillStyle = COLORS.rock;
+    ctx.beginPath();
+    ctx.roundRect(px + inset, py + inset, TILE - inset * 2, TILE - inset * 2, 4);
+    ctx.fill();
+
+    ctx.fillStyle = COLORS.rockLight;
+    ctx.beginPath();
+    ctx.roundRect(px + inset + 1, py + inset + 1, (TILE - inset * 2) * 0.5, (TILE - inset * 2) * 0.4, 2);
+    ctx.fill();
+
+    ctx.fillStyle = COLORS.rockDark;
+    ctx.beginPath();
+    ctx.roundRect(px + inset + (TILE - inset * 2) * 0.4, py + inset + (TILE - inset * 2) * 0.5, (TILE - inset * 2) * 0.4, (TILE - inset * 2) * 0.4, 2);
+    ctx.fill();
+
+    ctx.strokeStyle = '#555555';
+    ctx.lineWidth = 1;
+    ctx.beginPath();
+    ctx.roundRect(px + inset, py + inset, TILE - inset * 2, TILE - inset * 2, 4);
+    ctx.stroke();
+  }
+}
+
+function drawChests() {
+  for (const chest of game.chests) {
+    const px = chest.x * TILE;
+    const py = chest.y * TILE;
+
+    if (chest.opened) {
+      ctx.fillStyle = COLORS.chestOpen;
+      ctx.fillRect(px + 2, py + 10, TILE - 4, TILE - 12);
+      ctx.fillStyle = COLORS.chestGold;
+      ctx.fillRect(px + 4, py + 12, TILE - 8, TILE - 14);
+
+      ctx.fillStyle = COLORS.chestClosed;
+      ctx.fillRect(px + 2, py + 2, TILE - 4, 6);
+      ctx.fillStyle = COLORS.chestGold;
+      ctx.fillRect(px + 4, py + 3, TILE - 8, 4);
+    } else {
+      ctx.fillStyle = COLORS.chestClosed;
+      ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+      ctx.fillStyle = COLORS.chestGold;
+      ctx.fillRect(px + 4, py + 4, TILE - 8, TILE - 8);
+
+      ctx.fillStyle = '#FFD700';
+      ctx.beginPath();
+      ctx.arc(px + TILE / 2, py + TILE / 2, 3, 0, Math.PI * 2);
+      ctx.fill();
+
+      ctx.strokeStyle = '#B8860B';
+      ctx.lineWidth = 1;
+      ctx.strokeRect(px + 2, py + 2, TILE - 4, TILE - 4);
+    }
+  }
+}
+
+function drawExit() {
+  if (!game.exit) return;
+
+  const px = game.exit.x * TILE;
+  const py = game.exit.y * TILE;
+
+  ctx.fillStyle = COLORS.doorFrame;
+  ctx.fillRect(px - 1, py - 1, TILE + 2, TILE + 2);
+
+  if (game.exitOpen) {
+    ctx.fillStyle = '#1A1A1A';
+    ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+  } else {
+    ctx.fillStyle = COLORS.door;
+    ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+
+    ctx.strokeStyle = '#8B7355';
+    ctx.lineWidth = 1;
+    ctx.strokeRect(px + 2, py + 2, TILE - 4, TILE - 4);
+
+    ctx.fillStyle = COLORS.doorKnob;
+    ctx.beginPath();
+    const knobX = game.exit.dir === 3 ? px + TILE - 7 : px + 7;
+    ctx.arc(knobX, py + TILE / 2, 3, 0, Math.PI * 2);
+    ctx.fill();
+  }
+
+  ctx.fillStyle = '#FFFFFF';
+  ctx.font = 'bold 10px monospace';
+  ctx.textAlign = 'center';
+  const arrowX = game.exit.dir === 3 ? px + TILE + 10 : px - 10;
+  ctx.fillText(game.exit.dir === 3 ? '→' : game.exit.dir === 2 ? '←' : game.exit.dir === 0 ? '↓' : '↑', arrowX, py + TILE / 2 + 4);
+  ctx.textAlign = 'left';
+}
+
+function drawEnemies() {
+  for (const enemy of game.enemies) {
+    const px = enemy.x * TILE;
+    const py = enemy.y * TILE;
+    const isHit = enemy.hitTimer > 0;
+
+    ctx.save();
+
+    if (isHit) {
+      ctx.globalAlpha = 0.5 + Math.sin(Date.now() * 0.02) * 0.5;
+    }
+
+    ctx.fillStyle = isHit ? '#FFFFFF' : COLORS.goblin;
+    ctx.beginPath();
+    ctx.roundRect(px + 3, py + 4, TILE - 6, TILE - 8, 3);
+    ctx.fill();
+
+    ctx.fillStyle = COLORS.goblinLight;
+    ctx.beginPath();
+    ctx.roundRect(px + 4, py + 5, (TILE - 6) * 0.6, (TILE - 8) * 0.4, 2);
+    ctx.fill();
+
+    // Eyes
+    ctx.fillStyle = COLORS.goblinEye;
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 - 4, py + 10, 2.5, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 + 4, py + 10, 2.5, 0, Math.PI * 2);
+    ctx.fill();
+
+    // Pupils
+    ctx.fillStyle = '#003300';
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 - 4, py + 10, 1.2, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 + 4, py + 10, 1.2, 0, Math.PI * 2);
+    ctx.fill();
+
+    // Teeth
+    ctx.fillStyle = COLORS.goblinTeeth;
+    ctx.fillRect(px + TILE / 2 - 3, py + 16, 2, 2);
+    ctx.fillRect(px + TILE / 2 + 1, py + 16, 2, 2);
+
+    // HP bar
+    const barW = TILE - 4;
+    const hpRatio = enemy.hp / enemy.maxHp;
+    ctx.fillStyle = '#333333';
+    ctx.fillRect(px + 2, py - 4, barW, 4);
+    ctx.fillStyle = hpRatio > 0.5 ? '#00FF00' : hpRatio > 0.25 ? '#FFAA00' : '#FF0000';
+    ctx.fillRect(px + 2, py - 4, barW * hpRatio, 4);
+
+    ctx.restore();
+  }
+}
+
+function drawPlayer() {
+  const p = game.player;
+  const px = p.x * TILE;
+  const py = p.y * TILE;
+  const isHit = p.hitTimer > 0;
+
+  ctx.save();
+
+  if (isHit) {
+    ctx.globalAlpha = 0.5 + Math.sin(Date.now() * 0.03) * 0.5;
+  }
+
+  const bodyColor = isHit ? '#FF6666' : COLORS.playerBody;
+
+  // Body
+  ctx.fillStyle = bodyColor;
+  ctx.fillRect(px + 6, py + 14, TILE - 12, TILE - 16);
+
+  // Tunic detail
+  ctx.fillStyle = COLORS.playerTunic;
+  ctx.fillRect(px + 8, py + 16, TILE - 16, TILE - 20);
+
+  // Head
+  ctx.fillStyle = COLORS.playerHead;
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2, py + 10, 7, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Hair
+  ctx.fillStyle = COLORS.playerHair;
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2, py + 8, 7, Math.PI, Math.PI * 2);
+  ctx.fill();
+
+  // Eyes
+  ctx.fillStyle = COLORS.playerEyes;
+  const eyeOffX = DIRS[p.dir].x * 2;
+  const eyeOffY = DIRS[p.dir].y * 2;
+  ctx.fillRect(px + TILE / 2 - 3 + eyeOffX, py + 9 + eyeOffY, 2, 2);
+  ctx.fillRect(px + TILE / 2 + 1 + eyeOffX, py + 9 + eyeOffY, 2, 2);
+
+  // Sword indicator
+  if (p.hasSword) {
+    ctx.fillStyle = COLORS.swordBlade;
+    const sx = px + TILE / 2 + DIRS[p.dir].x * 10;
+    const sy = py + TILE / 2 + DIRS[p.dir].y * 10;
+    ctx.fillRect(sx - 2, sy - 2, 4, 4);
+    ctx.fillStyle = COLORS.swordHandle;
+    const hx = px + TILE / 2 + DIRS[p.dir].x * 5;
+    const hy = py + TILE / 2 + DIRS[p.dir].y * 5;
+    ctx.fillRect(hx - 1.5, hy - 1.5, 3, 3);
+  }
+
+  ctx.restore();
+}
+
+function drawAttackAnim() {
+  const p = game.player;
+  if (p.attackAnim <= 0 || !p.hasSword) return;
+
+  const px = p.x * TILE;
+  const py = p.y * TILE;
+  const dir = DIRS[p.dir];
+
+  ctx.save();
+  ctx.globalAlpha = p.attackAnim / ATTACK_ANIM;
+
+  const ax = px + TILE / 2 + dir.x * TILE * 0.6;
+  const ay = py + TILE / 2 + dir.y * TILE * 0.6;
+
+  // Sword blade
+  ctx.fillStyle = COLORS.swordBlade;
+  if (dir.x !== 0) {
+    ctx.fillRect(ax - 3, ay - TILE * 0.4, 6, TILE * 0.8);
+  } else {
+    ctx.fillRect(ax - TILE * 0.4, ay - 3, TILE * 0.8, 6);
+  }
+
+  // Slash effect
+  ctx.strokeStyle = '#FFFFFF';
+  ctx.lineWidth = 2;
+  ctx.globalAlpha = p.attackAnim / ATTACK_ANIM * 0.7;
+  if (dir.x !== 0) {
+    ctx.beginPath();
+    ctx.moveTo(ax, ay - TILE * 0.5);
+    ctx.lineTo(ax + dir.x * 8, ay);
+    ctx.lineTo(ax, ay + TILE * 0.5);
+    ctx.stroke();
+  } else {
+    ctx.beginPath();
+    ctx.moveTo(ax - TILE * 0.5, ay);
+    ctx.lineTo(ax, ay + dir.y * 8);
+    ctx.lineTo(ax + TILE * 0.5, ay);
+    ctx.stroke();
+  }
+
+  ctx.restore();
+}
+
+function drawHUD() {
+  // Hearts
+  const totalHearts = Math.ceil(game.player.maxHp / 2);
+  const fullHearts = Math.floor(game.player.hp / 2);
+  const halfHeart = game.player.hp % 2 === 1;
+
+  for (let i = 0; i < totalHearts; i++) {
+    const hx = 12 + i * 22;
+    const hy = 12;
+    drawHeart(ctx, hx, hy, 14, i < fullHearts);
+    if (i === fullHearts && halfHeart) {
+      ctx.save();
+      ctx.beginPath();
+      ctx.clip();
+      drawHeart(ctx, hx, hy, 14, true);
+      ctx.restore();
+    }
+  }
+
+  // Sword icon
+  if (game.player.hasSword) {
+    ctx.fillStyle = COLORS.swordBlade;
+    ctx.fillRect(canvas.width - 30, 6, 4, 14);
+    ctx.fillStyle = COLORS.swordHandle;
+    ctx.fillRect(canvas.width - 32, 20, 8, 4);
+    ctx.fillStyle = COLORS.swordGem;
+    ctx.beginPath();
+    ctx.arc(canvas.width - 28, 6, 2, 0, Math.PI * 2);
+    ctx.fill();
+  }
+
+  // Room name
+  ctx.fillStyle = '#CCCCCC';
+  ctx.font = '12px monospace';
+  ctx.textAlign = 'center';
+  ctx.fillText(ROOMS[game.roomIdx].name, canvas.width / 2, canvas.height - 8);
+  ctx.textAlign = 'left';
+}
+
+function drawMessages() {
+  if (game.messageTimer <= 0) return;
+
+  ctx.save();
+  ctx.globalAlpha = Math.min(1, game.messageTimer / 300);
+
+  ctx.fillStyle = 'rgba(0,0,0,0.7)';
+  const textW = ctx.measureText(game.message).width;
+  const boxW = textW + 20;
+  const boxX = (canvas.width - boxW) / 2;
+  const boxY = canvas.height / 2 - 30;
+  ctx.fillRect(boxX, boxY, boxW, 24);
+
+  ctx.strokeStyle = '#FFD700';
+  ctx.lineWidth = 1;
+  ctx.strokeRect(boxX, boxY, boxW, 24);
+
+  ctx.fillStyle = COLORS.msgText;
+  ctx.font = '14px monospace';
+  ctx.textAlign = 'center';
+  ctx.fillText(game.message, canvas.width / 2, boxY + 17);
+  ctx.textAlign = 'left';
+
+  ctx.restore();
+}
+
+function drawDeathScreen() {
+  ctx.fillStyle = COLORS.overlay;
+  ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+  ctx.fillStyle = '#FF0000';
+  ctx.font = 'bold 36px monospace';
+  ctx.textAlign = 'center';
+  ctx.fillText('YOU DIED', canvas.width / 2, canvas.height / 2 - 20);
+
+  ctx.fillStyle = '#AAAAAA';
+  ctx.font = '16px monospace';
+  ctx.fillText('Press ENTER to restart', canvas.width / 2, canvas.height / 2 + 20);
+  ctx.textAlign = 'left';
+}
+
+function drawWinScreen() {
+  ctx.fillStyle = COLORS.overlay;
+  ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+  ctx.fillStyle = '#FFD700';
+  ctx.font = 'bold 36px monospace';
+  ctx.textAlign = 'center';
+  ctx.fillText('YOU WIN!', canvas.width / 2, canvas.height / 2 - 40);
+
+  ctx.fillStyle = '#FFFFFF';
+  ctx.font = '18px monospace';
+  ctx.fillText('The dungeon has been conquered!', canvas.width / 2, canvas.height / 2);
+
+  ctx.fillStyle = '#AAAAAA';
+  ctx.font = '14px monospace';
+  ctx.fillText('Press ENTER to play again', canvas.width / 2, canvas.height / 2 + 35);
+  ctx.textAlign = 'left';
+}
+
+function render() {
+  ctx.clearRect(0, 0, canvas.width, canvas.height);
+
+  if (game.dead) {
+    drawFloor(game.layout);
+    drawWalls(game.layout);
+    drawTorches(game.layout);
+    drawDeathScreen();
+    return;
+  }
+
+  if (game.won) {
+    drawFloor(game.layout);
+    drawWalls(game.layout);
+    drawTorches(game.layout);
+    drawWinScreen();
+    return;
+  }
+
+  drawFloor(game.layout);
+  drawTargets();
+  drawWalls(game.layout);
+  drawTorches(game.layout);
+  drawExit();
+  drawRocks();
+  drawChests();
+  drawEnemies();
+  drawPlayer();
+  drawAttackAnim();
+
+  // Hit flash overlay
+  if (game.player.hitTimer > 0) {
+    ctx.fillStyle = COLORS.hitFlash;
+    ctx.globalAlpha = game.player.hitTimer / HIT_FLASH;
+    ctx.fillRect(0, 0, canvas.width, canvas.height);
+    ctx.globalAlpha = 1;
+  }
+
+  drawMessages();
+  drawHUD();
+}
+
+// === GAME LOOP ===
+let lastTime = 0;
+
+function gameLoop(timestamp) {
+  const dt = timestamp - lastTime;
+  lastTime = timestamp;
+
+  if (!game.won && !game.dead) {
+    // Handle movement input
+    if (game.player.moveTimer <= 0) {
+      let dx = 0, dy = 0;
+      if (keys['ArrowUp'] || keys['KeyW']) dy = -1;
+      else if (keys['ArrowDown'] || keys['KeyS']) dy = 1;
+      if (keys['ArrowLeft'] || keys['KeyA']) dx = -1;
+      else if (keys['ArrowRight'] || keys['KeyD']) dx = 1;
+
+      if (dx !== 0 || dy !== 0) {
+        tryMove(dx, dy);
+        game.player.moveTimer = MOVE_COOLDOWN;
+      }
+    }
+
+    // Update timers
+    if (game.player.moveTimer > 0) game.player.moveTimer -= dt;
+    if (game.player.attackTimer > 0) game.player.attackTimer -= dt;
+    if (game.player.attackAnim > 0) game.player.attackAnim -= dt;
+    if (game.player.hitTimer > 0) game.player.hitTimer -= dt;
+    if (game.messageTimer > 0) game.messageTimer -= dt;
+
+    // Update enemies
+    updateEnemies(dt);
+
+    // Check death
+    if (game.player.hp <= 0) {
+      game.player.hp = 0;
+      game.dead = true;
+    }
+  }
+
+  render();
+  requestAnimationFrame(gameLoop);
+}
+
+// === INIT ===
+function init() {
+  loadRoom(0);
+  requestAnimationFrame(gameLoop);
+}
+
+init();
\ No newline at end of file
diff --git a/src/app.js b/src/app.js
new file mode 100644
index 0000000..2d92f55
--- /dev/null
+++ b/src/app.js
@@ -0,0 +1,406 @@
+// === APP BOOTSTRAP ===
+
+const canvas = document.getElementById('game');
+const ctx = canvas.getContext('2d');
+const debugCanvas = document.getElementById('debug-canvas');
+const debugCtx = debugCanvas.getContext('2d');
+const menuOverlay = document.getElementById('menu-overlay');
+const debugOverlay = document.getElementById('debug-overlay');
+
+// Expose canvas contexts and DOM elements to window for other modules
+window.ctx = ctx;
+window.debugCtx = debugCtx;
+window.menuOverlay = menuOverlay;
+
+// Debug mode
+const debugMode = new URLSearchParams(window.location.search).has('debug');
+let debugVisible = false;
+
+// Screen state
+let currentScreen = SCREEN_TITLE;
+let transitionProgress = 1; // 1 = fully visible, 0 = fully faded
+let transitioning = false;
+let targetScreen = null;
+
+// Game loop timing
+let lastTime = 0;
+let animFrameId = null;
+
+// === SCREEN MANAGEMENT ===
+
+function switchScreen(screen) {
+  if (transitioning) return;
+  transitioning = true;
+  targetScreen = screen;
+  transitionProgress = 1;
+}
+
+function updateTransition(dt) {
+  if (!transitioning) return;
+  transitionProgress -= dt / TRANSITION_DURATION;
+  if (transitionProgress <= 0) {
+    transitionProgress = 1;
+    transitioning = false;
+    currentScreen = targetScreen;
+    targetScreen = null;
+    onScreenChange(currentScreen);
+  }
+}
+
+function onScreenChange(screen) {
+  menuOverlay.innerHTML = '';
+  menuOverlay.classList.remove('active');
+  inputSystem.clearKeys();
+
+  switch (screen) {
+    case SCREEN_TITLE:
+      renderTitleScreen(menuOverlay);
+      menuOverlay.classList.add('active');
+      break;
+    case SCREEN_DUNGEON_SELECT:
+      renderDungeonSelect(menuOverlay, saveData, onDungeonSelected);
+      menuOverlay.classList.add('active');
+      break;
+    case SCREEN_PLAYING:
+      if (!gameState.currentDungeon) return;
+      loadDungeonRoom(gameState.currentDungeon, gameState.currentRoomIdx);
+      break;
+    case SCREEN_DEAD:
+      renderDeathScreen(menuOverlay, gameState);
+      menuOverlay.classList.add('active');
+      break;
+    case SCREEN_DUNGEON_COMPLETE:
+      renderDungeonCompleteScreen(menuOverlay, gameState);
+      menuOverlay.classList.add('active');
+      break;
+    case SCREEN_GAME_COMPLETE:
+      renderGameCompleteScreen(menuOverlay, gameState);
+      menuOverlay.classList.add('active');
+      break;
+    case SCREEN_INVENTORY:
+      renderInventoryOverlay(menuOverlay, gameState);
+      menuOverlay.classList.add('active');
+      break;
+  }
+}
+
+function onDungeonSelected(dungeonIdx) {
+  gameState.currentDungeon = dungeonIdx;
+  gameState.currentRoomIdx = 0;
+  gameState.dungeonRooms = generateDungeon(DUNGEONS[dungeonIdx]);
+  gameState.player.hp = gameState.player.maxHp;
+  gameState.player.invincibleTimer = 1000;
+  switchScreen(SCREEN_PLAYING);
+}
+
+// === DEBUG ===
+
+function toggleDebug() {
+  debugVisible = !debugVisible;
+  debugCanvas.classList.toggle('visible', debugVisible);
+  debugOverlay.classList.toggle('visible', debugVisible);
+}
+
+function renderDebug() {
+  if (!debugVisible) return;
+  debugCtx.clearRect(0, 0, CANVAS_W, CANVAS_H);
+  debugCtx.fillStyle = '#0F0';
+  debugCtx.font = '10px monospace';
+
+  let y = 10;
+  const lines = [];
+  lines.push(`Screen: ${currentScreen}`);
+  lines.push(`Dungeon: ${gameState.currentDungeon !== null ? DUNGEONS[gameState.currentDungeon].name : 'none'}`);
+  lines.push(`Room: ${gameState.currentRoomIdx}/${gameState.dungeonRooms ? gameState.dungeonRooms.length - 1 : 0}`);
+  lines.push(`Player HP: ${gameState.player.hp}/${gameState.player.maxHp}`);
+  lines.push(`Weapons: ${gameState.player.weapons.map(w => w.name).join(', ')}`);
+  lines.push(`Active: ${gameState.player.activeWeapon ? gameState.player.activeWeapon.name : 'none'}`);
+  lines.push(`Enemies: ${gameState.enemies.length}`);
+  lines.push(`Particles: ${gameState.particles ? gameState.particles.length : 0}`);
+
+  if (gameState.currentDungeon !== null && gameState.dungeonRooms && gameState.currentRoom < gameState.dungeonRooms.length) {
+    const room = gameState.currentRoom;
+    lines.push(`Room type: ${room.type}`);
+    lines.push(`Room enemies: ${room.enemies.length}`);
+    lines.push(`Exit open: ${gameState.exitOpen}`);
+  }
+
+  for (const line of lines) {
+    debugCtx.fillText(line, 5, y);
+    y += 12;
+  }
+
+  // Draw collision boxes on debug canvas
+  if (currentScreen === SCREEN_PLAYING && gameState.layout) {
+    debugCtx.strokeStyle = 'rgba(0,255,0,0.3)';
+    debugCtx.lineWidth = 0.5;
+    for (let y2 = 0; y2 < ROWS; y2++) {
+      for (let x = 0; x < COLS; x++) {
+        if (gameState.layout[y2][x] === TILE_TYPES.FLOOR) {
+          debugCtx.strokeRect(x * TILE, y2 * TILE, TILE, TILE);
+        }
+      }
+    }
+  }
+}
+
+// === CONSOLE API ===
+
+window._genDungeon = function (id) {
+  const dungeon = DUNGEONS[id];
+  if (!dungeon) { console.error(`Dungeon ${id} not found`); return null; }
+  const rooms = generateDungeon(dungeon);
+  console.log(`Generated ${rooms.length} rooms for "${dungeon.name}" (seed: ${dungeon.seed})`);
+  console.table(rooms.map((r, i) => ({
+    idx: i, type: r.type, enemies: r.enemies.length, puzzles: r.puzzles ? r.puzzles.length : 0,
+    items: r.chests ? r.chests.length : 0, hasBoss: r.boss !== undefined
+  })));
+  return rooms;
+};
+
+window.spawnEnemy = function (type) {
+  if (currentScreen !== SCREEN_PLAYING) { console.error('Not in game'); return; }
+  const def = ENEMY_TYPES.find(e => e.name === type || e.id === type);
+  if (!def) { console.error(`Enemy type "${type}" not found`); return; }
+  const enemy = createEnemyInstance(def, gameState.player.x + 2, gameState.player.y);
+  gameState.enemies.push(enemy);
+  console.log(`Spawned ${def.name} at (${enemy.x}, ${enemy.y})`);
+};
+
+window.giveWeapon = function (name) {
+  if (currentScreen !== SCREEN_PLAYING) { console.error('Not in game'); return; }
+  const def = WEAPONS.find(w => w.name === name);
+  if (!def) { console.error(`Weapon "${name}" not found`); return; }
+  if (!gameState.player.weapons.find(w => w.name === def.name)) {
+    gameState.player.weapons.push({ ...def });
+    console.log(`Added ${def.name} to inventory`);
+  } else {
+    console.log(`${def.name} already in inventory`);
+  }
+};
+
+window.teleportToRoom = function (idx) {
+  if (currentScreen !== SCREEN_PLAYING || !gameState.dungeonRooms) {
+    console.error('Not in game');
+    return;
+  }
+  if (idx < 0 || idx >= gameState.dungeonRooms.length) {
+    console.error(`Room index ${idx} out of range [0, ${gameState.dungeonRooms.length - 1}]`);
+    return;
+  }
+  gameState.currentRoomIdx = idx;
+  loadDungeonRoom(gameState.currentDungeon, idx);
+  console.log(`Teleported to room ${idx}`);
+};
+
+window.dumpState = function () {
+  console.log('=== Game State ===');
+  console.log('Screen:', currentScreen);
+  console.log('Dungeon:', gameState.currentDungeon !== null ? DUNGEONS[gameState.currentDungeon].name : 'none');
+  console.log('Room:', gameState.currentRoomIdx);
+  console.log('Player:', JSON.stringify(gameState.player));
+  console.log('Enemies:', gameState.enemies.length);
+  console.log('Particles:', gameState.particles ? gameState.particles.length : 0);
+};
+
+// Keyboard shortcut for debug
+document.addEventListener('keydown', (e) => {
+  if (e.code === 'F1') { e.preventDefault(); toggleDebug(); }
+  if (e.code === 'F2' && currentScreen === SCREEN_PLAYING) {
+    e.preventDefault();
+    if (gameState.exitOpen || gameState.currentRoomIdx >= (gameState.dungeonRooms ? gameState.dungeonRooms.length - 1 : 0)) {
+      if (gameState.currentRoomIdx >= (gameState.dungeonRooms ? gameState.dungeonRooms.length - 1 : 0)) {
+        completeDungeon();
+      }
+    } else {
+      gameState.exitOpen = true;
+      showMessage('Debug: Door opened');
+      tryExit();
+    }
+  }
+  if (e.code === 'F3' && currentScreen === SCREEN_PLAYING) {
+    e.preventDefault();
+    gameState.player.invincible = true;
+    console.log('God mode enabled');
+  }
+  if (e.code === 'F4' && currentScreen === SCREEN_PLAYING) {
+    e.preventDefault();
+    spawnEnemy('goblin');
+  }
+});
+
+// === MAIN GAME LOOP ===
+
+function gameLoop(timestamp) {
+  const dt = Math.min(timestamp - lastTime, 50); // Cap delta to prevent spiral of death
+  lastTime = timestamp;
+
+  // Update transition
+  updateTransition(dt);
+
+  // Screen-specific updates
+  if (currentScreen === SCREEN_PLAYING && !transitioning) {
+    updateGame(dt);
+  }
+
+  // Update input
+  inputSystem.update(dt);
+
+  // Render
+  render();
+
+  // Debug overlay
+  renderDebug();
+
+  animFrameId = requestAnimationFrame(gameLoop);
+}
+
+function updateGame(dt) {
+  // Update player timers
+  if (gameState.player.moveTimer > 0) gameState.player.moveTimer -= dt;
+  if (gameState.player.attackTimer > 0) gameState.player.attackTimer -= dt;
+  if (gameState.player.attackAnim > 0) gameState.player.attackAnim -= dt;
+  if (gameState.player.hitTimer > 0) gameState.player.hitTimer -= dt;
+  if (gameState.player.invincibleTimer > 0) gameState.player.invincibleTimer -= dt;
+  else if (!gameState.player.invincible) gameState.player.invincibleTimer = 0;
+  if (gameState.messageTimer > 0) gameState.messageTimer -= dt;
+
+  // Update particles
+  if (gameState.particles) {
+    for (let i = gameState.particles.length - 1; i >= 0; i--) {
+      const p = gameState.particles[i];
+      p.life -= dt;
+      if (p.life <= 0) {
+        gameState.particles.splice(i, 1);
+        continue;
+      }
+      p.x += p.vx * (dt / 1000);
+      p.y += p.vy * (dt / 1000);
+      p.vy += (p.gravity || 0) * (dt / 1000);
+      p.alpha = (p.life / p.maxLife) * (p.maxAlpha || 1);
+    }
+    if (gameState.particles.length > MAX_PARTICLES) {
+      gameState.particles.splice(0, gameState.particles.length - MAX_PARTICLES);
+    }
+  }
+
+  // Handle movement
+  if (gameState.player.moveTimer <= 0 && !gameState.player.invincibleTimer) {
+    const move = inputSystem.getMove();
+    if (move) {
+      tryMove(move.dx, move.dy);
+      gameState.player.moveTimer = MOVE_COOLDOWN;
+    }
+  }
+
+  // Handle actions
+  if (inputSystem.getAction('attack') && gameState.player.attackTimer <= 0) {
+    tryAttack();
+  }
+  if (inputSystem.getAction('interact')) {
+    tryInteract();
+  }
+  if (inputSystem.getAction('menu') && currentScreen === SCREEN_PLAYING) {
+    switchScreen(SCREEN_INVENTORY);
+  }
+  if (inputSystem.getAction('back') && currentScreen === SCREEN_INVENTORY) {
+    switchScreen(SCREEN_PLAYING);
+  }
+
+  // Update enemies
+  updateEnemies(dt);
+
+  // Check death
+  if (gameState.player.hp <= 0 && !gameState.player.invincible) {
+    gameState.player.hp = 0;
+    switchScreen(SCREEN_DEAD);
+  }
+}
+
+// === RENDERING ===
+
+function render() {
+  ctx.clearRect(0, 0, CANVAS_W, CANVAS_H);
+
+  // Draw black background
+  ctx.fillStyle = '#000';
+  ctx.fillRect(0, 0, CANVAS_W, CANVAS_H);
+
+  if (currentScreen === SCREEN_PLAYING) {
+    renderGame();
+  }
+
+  // Draw transition overlay
+  if (transitioning || transitionProgress < 1) {
+    ctx.fillStyle = `rgba(0,0,0,${1 - transitionProgress})`;
+    ctx.fillRect(0, 0, CANVAS_W, CANVAS_H);
+  }
+}
+
+function renderGame() {
+  if (!gameState.layout) return;
+  const theme = DUNGEONS[gameState.currentDungeon] ? DUNGEONS[gameState.currentDungeon].theme : 'stone';
+  const themeData = THEMES[theme] || THEMES.stone;
+
+  renderFloor(themeData);
+  renderTargets();
+  renderWalls(themeData);
+  renderTorches(themeData);
+  renderDoors();
+  renderSoftwalls();
+  renderLava();
+  renderWater();
+  renderTraps();
+  renderLevers();
+  renderSwitches();
+  renderRocks();
+  renderChests();
+  renderItems();
+  renderEnemies();
+  if (gameState.currentBoss) renderBoss(gameState.currentBoss);
+  renderPlayer();
+  renderAttackAnim();
+  renderParticles();
+
+  // Hit flash overlay
+  if (gameState.player.hitTimer > 0) {
+    ctx.fillStyle = COLORS.hitFlash;
+    ctx.globalAlpha = gameState.player.hitTimer / HIT_FLASH;
+    ctx.fillRect(0, 0, CANVAS_W, CANVAS_H);
+    ctx.globalAlpha = 1;
+  }
+
+  renderMessages();
+  renderHUD();
+}
+
+// === INITIALIZATION ===
+
+function init() {
+  // Initialize subsystems
+  initKeyboard();
+  initActions();
+  initGameState();
+  loadSaveData();
+  // Expose inputSystem and gameState to window for other modules
+  window.inputSystem = inputSystem;
+  window.gameState = gameState;
+
+  // Start with title screen
+  currentScreen = SCREEN_TITLE;
+  menuOverlay.innerHTML = '';
+  renderTitleScreen(menuOverlay);
+  menuOverlay.classList.add('active');
+
+  // Start game loop
+  lastTime = performance.now();
+  requestAnimationFrame(gameLoop);
+
+  console.log('Zelda Dungeon Quest initialized');
+  console.log('Debug mode:', debugMode ? 'ON (?debug=1)' : 'OFF');
+  console.log('Controls: F1=debug, F2=skip room, F3=god mode, F4=spawn enemy');
+  console.log('Console API: generateDungeon(id), spawnEnemy(type), giveWeapon(name), teleportToRoom(idx), dumpState()');
+}
+
+// Boot!
+init();
\ No newline at end of file
diff --git a/src/browser-polyfill.js b/src/browser-polyfill.js
new file mode 100644
index 0000000..ea2ee44
--- /dev/null
+++ b/src/browser-polyfill.js
@@ -0,0 +1,131 @@
+'use strict';
+
+// Browser polyfill: makes Node.js CommonJS (module.exports / require) work in browser
+// Load this BEFORE all other scripts in index.html
+
+(function () {
+  // Global `module` object - its exports setter mirrors to window
+  var moduleObj = { exports: {} };
+  Object.defineProperty(moduleObj, 'exports', {
+    set: function (val) {
+      this._exports = val || {};
+      // Mirror all exported properties to window for cross-script access
+      if (val && typeof val === 'object') {
+        for (var key in val) {
+          if (Object.prototype.hasOwnProperty.call(val, key)) {
+            window[key] = val[key];
+          }
+        }
+      }
+    },
+    get: function () {
+      return this._exports || {};
+    },
+  });
+  moduleObj._exports = {};
+  window.module = moduleObj;
+
+  // Module path -> exported keys mapping for require() lookups
+  var moduleKeys = {
+    'src/core/constants': ['TILE', 'COLS', 'ROWS', 'TILE_TYPES', 'COLORS',
+      'T_FLOOR', 'T_WALL', 'T_SOFTWALL', 'T_LAVA', 'T_WATER', 'T_TORCH',
+      'T_DOOR', 'T_LEVER', 'T_SWITCH', 'T_TRAP', 'T_TARGET', 'T_CHEST',
+      'T_EXIT', 'T_ROCK', 'T_ITEM',
+      'MOVE_COOLDOWN', 'ATTACK_COOLDOWN', 'ATTACK_ANIM',
+      'ENEMY_MOVE_INTERVAL', 'ENEMY_ATTACK_INTERVAL',
+      'HIT_FLASH', 'MESSAGE_DURATION', 'TRANSITION_DURATION',
+      'DIRS', 'DIR_NAMES', 'OPPOSITE_DIR',
+      'SCREEN_TITLE', 'SCREEN_DUNGEON_SELECT', 'SCREEN_PLAYING',
+      'SCREEN_DEAD', 'SCREEN_DUNGEON_COMPLETE', 'SCREEN_GAME_COMPLETE',
+      'SCREEN_INVENTORY',
+      'CANVAS_W', 'CANVAS_H',
+      'MAX_HEARTS', 'MAX_INVENTORY_SLOTS', 'MAX_PARTICLES'],
+    'src/core/rng': ['createRNG', 'mulberry32', 'randInt', 'randFloat', 'randElement', 'shuffle', 'weightedChoice'],
+    'src/core/utils': ['createBorderLayout', 'createEmptyLayout', 'drawHeart', 'drawHeartContainer',
+      'manhattanDist', 'inBounds', 'cloneLayout', 'clamp', 'lerp',
+      'isPassable', 'isWall', 'isSoftWall', 'getFloorColor', 'getWallColors', 'formatNumber'],
+    'src/generator/dungeon': ['generateDungeon'],
+    'src/generator/rooms': ['generateRoomLayout', 'getRoomLayoutTemplate', 'applyThemeToRoom'],
+    'src/generator/puzzles': ['generatePuzzles'],
+    'src/generator/placement': ['generatePlacement', 'placeEnemies', 'placeItems', 'placeBoss',
+      'findFloorPosition', 'getEnemyPool', 'getRupeeType'],
+    'src/generator/index': ['generateDungeon', 'generateRoomLayout', 'generatePuzzles', 'generatePlacement'],
+    'src/data/themes': ['THEMES'],
+    'src/data/dungeons': ['DUNGEONS'],
+    'src/data/enemies': ['ENEMY_TYPES', 'getEnemyType'],
+    'src/data/weapons': ['WEAPONS', 'getWeapon'],
+    'src/data/bosses': ['BOSS_TYPES', 'getBossType'],
+    'src/data/items': ['ITEMS', 'getItem'],
+    'src/game/state': ['initGameState', 'loadDungeonRoom', 'showMessage', 'resetPlayer'],
+    'src/game/movement': ['tryMove', 'tryInteract', 'tryExit', 'completeDungeon'],
+    'src/game/combat': ['tryAttack', 'dealDamage', 'spawnProjectile', 'updateProjectiles'],
+    'src/game/ai': ['updateEnemies', 'updateEnemyMovement', 'moveToward', 'enemyAttack', 'bossAttack', 'createEnemyInstance'],
+    'src/game/items': ['openChest', 'collectFloorItem', 'useItem', 'switchWeapon'],
+    'src/game/transitions': ['startTransition', 'getTransitionAlpha', 'isTransitionComplete'],
+    'src/input/keyboard': ['initKeyboard', 'isKeyDown', 'isKeyJustPressed', 'setKeyHandlers', 'resetKeys'],
+    'src/input/actions': ['initActions', 'getActionState', 'getAction', 'getActiveActions'],
+    'src/rendering/renderer': ['renderFloor', 'renderWalls', 'renderTorches', 'renderDoors', 'renderSoftwalls', 'renderLava', 'renderWater', 'renderTraps', 'renderLevers', 'renderSwitches', 'renderTargets', 'renderRocks', 'renderChests', 'renderItems', 'renderExit', 'renderPlayer', 'renderAttackAnim', 'renderMessages'],
+    'src/rendering/draw-enemies': ['renderEnemies', 'drawEnemy', 'drawSlime', 'drawKeese', 'drawOctorok', 'drawMoblin', 'drawStalfos', 'drawGoriya', 'drawArmos', 'drawLynel'],
+    'src/rendering/draw-bosses': ['renderBoss', 'drawGenericBoss', 'drawGleeok', 'drawDarknut', 'drawWizzrobe'],
+    'src/rendering/draw-weapons': ['drawWeaponHeld', 'drawWeaponInHUD', 'drawSwordHeld', 'drawMasterSwordHeld', 'drawBowHeld', 'drawBoomerangHeld', 'drawBombHeld', 'drawHammerHeld', 'drawFireRodHeld', 'drawIceRodHeld', 'drawSlingshotHeld', 'drawHookshotHeld', 'drawWeaponIcon'],
+    'src/rendering/hud': ['renderHUD'],
+    'src/rendering/effects': ['spawnParticles', 'spawnHitParticles', 'spawnDefeatParticles', 'spawnExplosionParticles', 'renderParticles', 'renderProjectiles'],
+    'src/menu/title-screen': ['renderTitleScreen', 'createMenuButton'],
+    'src/menu/dungeon-select': ['renderDungeonSelect'],
+    'src/menu/hud-overlay': ['renderInventoryOverlay'],
+    'src/menu/screens': ['renderDeathScreen', 'renderDungeonCompleteScreen', 'renderGameCompleteScreen'],
+    'src/save/save': ['saveData', 'loadSaveData', 'saveProgress', 'markDungeonComplete', 'addWeapon', 'addHeartPiece', 'addStats', 'isDungeonCompleted', 'isDungeonUnlocked', 'getSaveSummary', 'clearSave'],
+  };
+
+  // Resolve a require path to a canonical module key
+  function resolvePath(req, callerPath) {
+    // Strip leading / for consistency with moduleKeys
+    if (callerPath && callerPath.startsWith('/')) callerPath = callerPath.substring(1);
+    // Direct match
+    if (moduleKeys.hasOwnProperty(req)) return req;
+
+    if (req.startsWith('./') || req.startsWith('../')) {
+      var dir = callerPath.substring(0, callerPath.lastIndexOf('/') + 1);
+      var resolved;
+      if (req.startsWith('./')) {
+        resolved = dir + req.substring(2);
+      } else {
+        var segments = req.substring(2).split('/');
+        var baseSegments = dir.split('/').filter(Boolean);
+        var dotDotCount = 0;
+        for (var i = 0; i + 2 < req.length && req.substring(i, i + 3) === '../'; i += 3) dotDotCount++;
+        for (var u = 0; u < dotDotCount; u++) baseSegments.pop();
+        var rest = req.substring(dotDotCount * 3);
+        resolved = baseSegments.join('/') + '/' + rest;
+      }
+      // Normalize
+      while (resolved.includes('/../')) {
+        resolved = resolved.replace(/[^\/]+\/\.\.\//, '');
+      }
+      if (moduleKeys.hasOwnProperty(resolved)) return resolved;
+    }
+
+    return null;
+  }
+
+  // Global `require` function
+  window.require = function (reqPath) {
+    var script = document.currentScript;
+    var origin = window.location ? window.location.origin : '';
+    var callerPath = script ? (script.src || script.getAttribute('src') || '').replace(origin, '') : '';
+    var modKey = resolvePath(reqPath, callerPath);
+
+    if (!modKey) {
+      console.warn('[require] Module not found: "' + reqPath + '" from "' + callerPath + '"');
+      return {};
+    }
+
+    var result = {};
+    var keys = moduleKeys[modKey];
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      result[key] = window[key] !== undefined ? window[key] : undefined;
+    }
+    return result;
+  };
+})();
\ No newline at end of file
diff --git a/src/core/constants.js b/src/core/constants.js
new file mode 100644
index 0000000..0ac32aa
--- /dev/null
+++ b/src/core/constants.js
@@ -0,0 +1,151 @@
+'use strict';
+
+// Tile dimensions
+const TILE = 32;
+const COLS = 32;
+const ROWS = 24;
+
+// Tile types
+const TILE_TYPES = {
+  FLOOR: 0,
+  WALL: 1,
+  SOFTWALL: 2,
+  LAVA: 3,
+  WATER: 4,
+  TORCH: 5,
+  DOOR: 6,
+  LEVER: 7,
+  SWITCH: 8,
+  TRAP: 9,
+  TARGET: 10,
+  CHEST: 11,
+  EXIT: 12,
+  ROCK: 13,
+  ITEM: 14,
+};
+
+// Backward-compatible individual constants
+const T_FLOOR = TILE_TYPES.FLOOR;
+const T_WALL = TILE_TYPES.WALL;
+const T_SOFTWALL = TILE_TYPES.SOFTWALL;
+const T_LAVA = TILE_TYPES.LAVA;
+const T_WATER = TILE_TYPES.WATER;
+const T_TORCH = TILE_TYPES.TORCH;
+const T_DOOR = TILE_TYPES.DOOR;
+const T_LEVER = TILE_TYPES.LEVER;
+const T_SWITCH = TILE_TYPES.SWITCH;
+const T_TRAP = TILE_TYPES.TRAP;
+const T_TARGET = TILE_TYPES.TARGET;
+const T_CHEST = TILE_TYPES.CHEST;
+const T_EXIT = TILE_TYPES.EXIT;
+const T_ROCK = TILE_TYPES.ROCK;
+const T_ITEM = TILE_TYPES.ITEM;
+
+// Timing constants
+const MOVE_COOLDOWN = 100;
+const ATTACK_COOLDOWN = 400;
+const ATTACK_ANIM = 250;
+const ENEMY_MOVE_INTERVAL = 800;
+const ENEMY_ATTACK_INTERVAL = 1500;
+const HIT_FLASH = 200;
+const MESSAGE_DURATION = 2000;
+const TRANSITION_DURATION = 600;
+
+// Direction vectors: [Down, Up, Left, Right]
+const DIRS = [
+  { x: 0, y: 1 },
+  { x: 0, y: -1 },
+  { x: -1, y: 0 },
+  { x: 1, y: 0 },
+];
+const DIR_NAMES = ['Down', 'Up', 'Left', 'Right'];
+
+// Opposite direction lookup
+const OPPOSITE_DIR = [1, 0, 3, 2];
+
+// Color palette (base stone dungeon theme)
+const COLORS = {
+  floor: '#C4A265',
+  floorDark: '#A8884D',
+  wall: '#505050',
+  wallTop: '#6E6E6E',
+  wallFront: '#5A5A5A',
+  wallBottom: '#383838',
+  playerBody: '#228B22',
+  playerTunic: '#1A6B1A',
+  playerHead: '#FFD700',
+  playerEyes: '#000080',
+  playerHair: '#8B4513',
+  rock: '#888888',
+  rockDark: '#666666',
+  rockLight: '#AAAAAA',
+  target: '#FFD700',
+  targetGlow: 'rgba(255,215,0,0.3)',
+  chestClosed: '#8B4513',
+  chestGold: '#DAA520',
+  chestOpen: '#A0522D',
+  swordBlade: '#C0C0C0',
+  swordHandle: '#8B4513',
+  swordGem: '#FF0000',
+  goblin: '#8B0000',
+  goblinLight: '#CC2222',
+  goblinEye: '#00FF00',
+  goblinTeeth: '#FFFFFF',
+  torchStick: '#654321',
+  torchFlame: '#FF8C00',
+  torchGlow: 'rgba(255,140,0,0.15)',
+  door: '#654321',
+  doorFrame: '#8B7355',
+  doorKnob: '#FFD700',
+  heart: '#FF0000',
+  heartEmpty: '#444444',
+  msgText: '#FFFFFF',
+  overlay: 'rgba(0,0,0,0.75)',
+  hitFlash: 'rgba(255,0,0,0.3)',
+  softwall: '#705040',
+  softwallDark: '#503828',
+  lava: '#FF4500',
+  lavaLight: '#FF6347',
+  water: '#4169AA',
+  waterLight: '#5F9EA0',
+  lever: '#B8860B',
+  switchFloor: '#DAA520',
+  trap: '#8B008B',
+};
+
+// Screen states
+const SCREEN_TITLE = 'title';
+const SCREEN_DUNGEON_SELECT = 'dungeon_select';
+const SCREEN_PLAYING = 'playing';
+const SCREEN_DEAD = 'dead';
+const SCREEN_DUNGEON_COMPLETE = 'dungeon_complete';
+const SCREEN_GAME_COMPLETE = 'game_complete';
+const SCREEN_INVENTORY = 'inventory';
+
+// Canvas dimensions
+const CANVAS_W = 640;
+const CANVAS_H = 480;
+
+// Max values
+const MAX_HEARTS = 13; // 26 HP
+const MAX_INVENTORY_SLOTS = 12;
+const MAX_PARTICLES = 100;
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = {
+    TILE, COLS, ROWS, TILE_TYPES,
+    T_FLOOR, T_WALL, T_SOFTWALL, T_LAVA, T_WATER, T_TORCH,
+    T_DOOR, T_LEVER, T_SWITCH, T_TRAP, T_TARGET, T_CHEST,
+    T_EXIT, T_ROCK, T_ITEM,
+    MOVE_COOLDOWN, ATTACK_COOLDOWN, ATTACK_ANIM,
+    ENEMY_MOVE_INTERVAL, ENEMY_ATTACK_INTERVAL,
+    HIT_FLASH, MESSAGE_DURATION, TRANSITION_DURATION,
+    DIRS, DIR_NAMES, OPPOSITE_DIR,
+    COLORS,
+    SCREEN_TITLE, SCREEN_DUNGEON_SELECT, SCREEN_PLAYING,
+    SCREEN_DEAD, SCREEN_DUNGEON_COMPLETE, SCREEN_GAME_COMPLETE,
+    SCREEN_INVENTORY,
+    CANVAS_W, CANVAS_H,
+    MAX_HEARTS, MAX_INVENTORY_SLOTS, MAX_PARTICLES,
+  };
+}
\ No newline at end of file
diff --git a/src/core/rng.js b/src/core/rng.js
new file mode 100644
index 0000000..72c9350
--- /dev/null
+++ b/src/core/rng.js
@@ -0,0 +1,58 @@
+'use strict';
+
+// Mulberry32 - fast, deterministic PRNG
+function mulberry32(seed) {
+  return function () {
+    seed |= 0;
+    seed = seed + 0x602a2ebf | 0;
+    let t = Math.imul(seed ^ seed >>> 16, 0x6d349c2b);
+    t = Math.imul(t ^ t >>> 16, 0x04c35085) | 0;
+    t = t ^ t >>> 16;
+    return (t >>> 0) / 4294967296;
+  };
+}
+
+// Create a seeded RNG instance
+function createRNG(seed) {
+  return mulberry32(seed);
+}
+
+// Random integer in [min, max] inclusive
+function randInt(rng, min, max) {
+  return Math.floor(rng() * (max - min + 1)) + min;
+}
+
+// Random float in [0, 1)
+function randFloat(rng) {
+  return rng();
+}
+
+// Pick random element from array
+function randElement(rng, arr) {
+  return arr[Math.floor(rng() * arr.length)];
+}
+
+// Shuffle array in place (Fisher-Yates)
+function shuffle(rng, arr) {
+  const a = [...arr];
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(rng() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]];
+  }
+  return a;
+}
+
+// Random choice with weights
+function weightedChoice(rng, items) {
+  const total = items.reduce((sum, item) => sum + item.weight, 0);
+  let r = rng() * total;
+  for (const item of items) {
+    r -= item.weight;
+    if (r <= 0) return item.value;
+  }
+  return items[items.length - 1].value;
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { createRNG, mulberry32, randInt, randFloat, randElement, shuffle, weightedChoice };
+}
\ No newline at end of file
diff --git a/src/core/utils.js b/src/core/utils.js
new file mode 100644
index 0000000..7892009
--- /dev/null
+++ b/src/core/utils.js
@@ -0,0 +1,131 @@
+'use strict';
+
+// Browser: use window globals; Node: use require
+const _Const = typeof require !== 'undefined' ? require('./constants') : { TILE, COLS, ROWS, TILE_TYPES, COLORS };
+
+// Create a layout grid with border walls and optional interior walls/torches
+function createBorderLayout(walls, torches) {
+  const layout = [];
+  for (let y = 0; y < _Const.ROWS; y++) {
+    const row = [];
+    for (let x = 0; x < _Const.COLS; x++) {
+      if (y === 0 || y === _Const.ROWS - 1 || x === 0 || x === _Const.COLS - 1) {
+        row.push(_Const.TILE_TYPES.WALL);
+      } else {
+        row.push(_Const.TILE_TYPES.FLOOR);
+      }
+    }
+    layout.push(row);
+  }
+  if (walls) {
+    for (const [wx, wy] of walls) {
+      if (wy >= 0 && wy < _Const.ROWS && wx >= 0 && wx < _Const.COLS) {
+        layout[wy][wx] = _Const.TILE_TYPES.WALL;
+      }
+    }
+  }
+  if (torches) {
+    for (const [tx, ty] of torches) {
+      if (ty >= 0 && ty < _Const.ROWS && tx >= 0 && tx < _Const.COLS) {
+        layout[ty][tx] = _Const.TILE_TYPES.TORCH;
+      }
+    }
+  }
+  return layout;
+}
+
+// Create empty layout (all floor, border walls)
+function createEmptyLayout() {
+  return createBorderLayout([], []);
+}
+
+// Draw a heart shape on canvas
+function drawHeart(ctx, cx, cy, size, filled) {
+  ctx.save();
+  ctx.fillStyle = filled ? _Const.COLORS.heart : _Const.COLORS.heartEmpty;
+  ctx.beginPath();
+  const s = size * 0.5;
+  ctx.moveTo(cx, cy + s * 0.3);
+  ctx.bezierCurveTo(cx, cy - s * 0.5, cx - s * 1.2, cy - s * 0.5, cx - s, cy + s * 0.1);
+  ctx.bezierCurveTo(cx - s, cy + s * 0.7, cx, cy + s * 1.1, cx, cy + s * 1.1);
+  ctx.bezierCurveTo(cx, cy + s * 0.7, cx + s, cy + s * 0.1, cx + s, cy + s * 0.1);
+  ctx.bezierCurveTo(cx + s * 1.2, cy - s * 0.5, cx, cy - s * 0.5, cx, cy + s * 0.3);
+  ctx.closePath();
+  ctx.fill();
+  ctx.restore();
+}
+
+// Draw a heart container (full 2-HP heart)
+function drawHeartContainer(ctx, cx, cy) {
+  drawHeart(ctx, cx, cy, 14, true);
+}
+
+// Manhattan distance
+function manhattanDist(x1, y1, x2, y2) {
+  return Math.abs(x1 - x2) + Math.abs(y1 - y2);
+}
+
+// Check if position is within bounds
+function inBounds(x, y) {
+  return x >= 0 && x < _Const.COLS && y >= 0 && y < _Const.ROWS;
+}
+
+// Deep clone a 2D array
+function cloneLayout(layout) {
+  return layout.map(row => [...row]);
+}
+
+// Clamp value between min and max
+function clamp(val, min, max) {
+  return Math.max(min, Math.min(max, val));
+}
+
+// Linear interpolation
+function lerp(a, b, t) {
+  return a + (b - a) * t;
+}
+
+// Check if tile is passable (not wall)
+function isPassable(layout, x, y) {
+  if (!inBounds(x, y)) return false;
+  const tile = layout[y][x];
+  return tile !== _Const.TILE_TYPES.WALL && tile !== _Const.TILE_TYPES.LAVA;
+}
+
+// Check if tile is a wall
+function isWall(layout, x, y) {
+  if (!inBounds(x, y)) return true;
+  return layout[y][x] === _Const.TILE_TYPES.WALL;
+}
+
+// Check if tile is a soft wall (breakable with bombs/hammer)
+function isSoftWall(layout, x, y) {
+  if (!inBounds(x, y)) return false;
+  return layout[y][x] === _Const.TILE_TYPES.SOFTWALL;
+}
+
+// Get floor color for theme
+function getFloorColor(theme, x, y) {
+  const base = theme.floorColor || _Const.COLORS.floor;
+  const dark = theme.floorDarkColor || _Const.COLORS.floorDark;
+  return ((x + y) % 2 === 0) ? base : dark;
+}
+
+// Get wall colors for theme
+function getWallColors(theme) {
+  return {
+    wall: theme.wallColor || _Const.COLORS.wall,
+    top: theme.wallTopColor || _Const.COLORS.wallTop,
+    front: theme.wallFrontColor || _Const.COLORS.wallFront,
+    bottom: theme.wallBottomColor || _Const.COLORS.wallBottom,
+  };
+}
+
+// Format number with commas
+function formatNumber(n) {
+  return n.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { createBorderLayout, createEmptyLayout, drawHeart, drawHeartContainer, manhattanDist, inBounds, cloneLayout, clamp, lerp, isPassable, isWall, isSoftWall, getFloorColor, getWallColors, formatNumber };
+}
\ No newline at end of file
diff --git a/src/data/bosses.js b/src/data/bosses.js
new file mode 100644
index 0000000..5ff8d06
--- /dev/null
+++ b/src/data/bosses.js
@@ -0,0 +1,112 @@
+'use strict';
+
+const BOSS_TYPES = [
+  { id: 0, name: 'Stone Gleeok', hp: 26, damage: 3, defense: 0, speed: 1.5, colors: { body: "#696969", eye: "#FFD700", accent: "#A9A9A9" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 4, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 3, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }] },
+  { id: 1, name: 'Stone Darknut', hp: 20, damage: 3, defense: 1, speed: 1.2, colors: { body: "#696969", eye: "#FFD700", accent: "#A9A9A9" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 3, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 4, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 4, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }] },
+  { id: 2, name: 'Stone Wizzrobe', hp: 20, damage: 2, defense: 0, speed: 0, colors: { body: "#696969", eye: "#FFD700", accent: "#A9A9A9" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 3, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }] },
+  { id: 3, name: 'Root Moldorm', hp: 21, damage: 4, defense: 1, speed: 2, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 5, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 5, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 4, name: 'Moss Genie', hp: 33, damage: 4, defense: 1, speed: 0, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 5, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 5, name: 'Moss Like Like', hp: 16, damage: 3, defense: 0, speed: 1, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 3, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }] },
+  { id: 6, name: 'Verdant Aquamentus', hp: 36, damage: 4, defense: 1, speed: 0, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 5, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 7, name: 'Verdant Manhandla', hp: 20, damage: 3, defense: 0, speed: 1.8, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 3, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }] },
+  { id: 8, name: 'Forest Ice Gleeok', hp: 39, damage: 4, defense: 1, speed: 1.5, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 5, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 4, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 9, name: 'Verdant Agahnim', hp: 30, damage: 5, defense: 2, speed: 0, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 7, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 7, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 9, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 7, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 10, name: 'Green Darknut', hp: 30, damage: 4, defense: 2, speed: 1.2, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 5, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 5, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 11, name: 'Verdant Gleeok', hp: 52, damage: 4, defense: 1, speed: 1.5, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 5, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 4, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 12, name: 'Thorn Wizzrobe', hp: 30, damage: 3, defense: 0, speed: 0, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 4, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 13, name: 'Root Moldorm', hp: 28, damage: 4, defense: 1, speed: 2, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 5, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 5, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 14, name: 'Moss Genie', hp: 33, damage: 4, defense: 1, speed: 0, colors: { body: "#228B22", eye: "#90EE90", accent: "#006400" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 5, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 15, name: 'Dune Like Like', hp: 32, damage: 4, defense: 1, speed: 1, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 5, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 20 }] },
+  { id: 16, name: 'Sand Aquamentus', hp: 36, damage: 4, defense: 1, speed: 0, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 5, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 17, name: 'Dune Manhandla', hp: 30, damage: 4, defense: 1, speed: 1.8, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 18, name: 'Desert Ice Gleeok', hp: 52, damage: 4, defense: 1, speed: 1.5, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 5, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 4, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 19, name: 'Sand Agahnim', hp: 40, damage: 5, defense: 2, speed: 0, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 7, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 7, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 9, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 7, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 20, name: 'Sand Genie', hp: 44, damage: 4, defense: 1, speed: 0, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 5, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 5, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 21, name: 'Sand Darknut', hp: 60, damage: 5, defense: 3, speed: 1.2, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 7, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 7, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "hammer", weight: 8 }] },
+  { id: 22, name: 'Sand Gleeok', hp: 52, damage: 4, defense: 1, speed: 1.5, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 5, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 4, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 23, name: 'Mirage Wizzrobe', hp: 60, damage: 4, defense: 1, speed: 0, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 5, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 6, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "keese"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "ice_rod", weight: 5 }] },
+  { id: 24, name: 'Dune Moldorm', hp: 28, damage: 4, defense: 1, speed: 2, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 5, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 5, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 25, name: 'Sand Genie', hp: 66, damage: 5, defense: 2, speed: 0, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 7, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 26, name: 'Dune Like Like', hp: 32, damage: 4, defense: 1, speed: 1, colors: { body: "#DAA520", eye: "#8B4513", accent: "#FFD700" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 5, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 20 }] },
+  { id: 27, name: 'Frost Aquamentus', hp: 72, damage: 5, defense: 2, speed: 0, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 7, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 28, name: 'Frost Manhandla', hp: 40, damage: 4, defense: 1, speed: 1.8, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 4, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 5, cooldown: 2000, count: 4, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 5, cooldown: 800, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }] },
+  { id: 29, name: 'Glacier Gleeok', hp: 78, damage: 5, defense: 2, speed: 1.5, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 7, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 5, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 8, cooldown: 2000, count: 3, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 6, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 30, name: 'Frost Agahnim', hp: 60, damage: 6, defense: 3, speed: 0, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 8, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 8, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 8, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 31, name: 'Frost Like Like', hp: 64, damage: 5, defense: 1, speed: 1, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 7, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "super_potion", weight: 20 }] },
+  { id: 32, name: 'Iron Darknut', hp: 60, damage: 5, defense: 3, speed: 1.2, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 7, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 7, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "hammer", weight: 8 }] },
+  { id: 33, name: 'Frost Gleeok', hp: 104, damage: 5, defense: 1, speed: 1.5, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 7, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 5, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 8, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 6, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "fire_rod", weight: 5 }] },
+  { id: 34, name: 'Frost Wizzrobe', hp: 60, damage: 4, defense: 1, speed: 0, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 5, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 6, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "keese"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "ice_rod", weight: 5 }] },
+  { id: 35, name: 'Frost Moldorm', hp: 56, damage: 5, defense: 1, speed: 2, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 7, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 7, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 36, name: 'Ice Genie', hp: 66, damage: 5, defense: 2, speed: 0, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 7, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 37, name: 'Frost Like Like', hp: 64, damage: 5, defense: 1, speed: 1, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 7, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "super_potion", weight: 20 }] },
+  { id: 38, name: 'Frost Aquamentus', hp: 72, damage: 5, defense: 2, speed: 0, colors: { body: "#4682B4", eye: "#E0E0E0", accent: "#87CEEB" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 7, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 39, name: 'Crystal Manhandla', hp: 80, damage: 5, defense: 1, speed: 1.8, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 7, cooldown: 2000, count: 4, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 7, cooldown: 800, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "boomerang", weight: 5 }] },
+  { id: 40, name: 'Shadow Ice Gleeok', hp: 104, damage: 5, defense: 1, speed: 1.5, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 7, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 5, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 8, cooldown: 2000, count: 3, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 6, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "fire_rod", weight: 5 }] },
+  { id: 41, name: 'Crystal Agahnim', hp: 115, damage: 7, defense: 3, speed: 0, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 9, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 9, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 9, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 9, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 11, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 9, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "magic_sword", weight: 5 }] },
+  { id: 42, name: 'Deep Moldorm', hp: 56, damage: 5, defense: 1, speed: 2, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 7, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 7, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 43, name: 'Deep Darknut', hp: 115, damage: 6, defense: 3, speed: 1.2, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 6, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 8, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 8, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}, { hpThreshold: 25, attacks: [{ type: "melee", damage: 10, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 6, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "hammer", weight: 8 }] },
+  { id: 44, name: 'Shadow Gleeok', hp: 104, damage: 5, defense: 1, speed: 1.5, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 7, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 5, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 8, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 6, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "fire_rod", weight: 5 }] },
+  { id: 45, name: 'Crystal Wizzrobe', hp: 115, damage: 5, defense: 1, speed: 0, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 8, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "stalfos"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "ice_rod", weight: 5 }] },
+  { id: 46, name: 'Deep Moldorm', hp: 56, damage: 5, defense: 1, speed: 2, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 7, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 7, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }] },
+  { id: 47, name: 'Crystal Genie', hp: 127, damage: 6, defense: 2, speed: 0, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 8, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 9, cooldown: 1000, count: 3, spreadAngle: 120, projectileSpeed: 3}, { type: "projectile", damage: 8, cooldown: 800, count: 2, spreadAngle: 45, projectileSpeed: 3.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "magic_crystal", weight: 10 }] },
+  { id: 48, name: 'Deep Like Like', hp: 64, damage: 5, defense: 1, speed: 1, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 5, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 7, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "super_potion", weight: 20 }] },
+  { id: 49, name: 'Crystal Aquamentus', hp: 138, damage: 6, defense: 2, speed: 0, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 8, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 10, cooldown: 1200, count: 3, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "fire_rod", weight: 5 }] },
+  { id: 50, name: 'Crystal Manhandla', hp: 115, damage: 6, defense: 2, speed: 1.8, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 6, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 8, cooldown: 2000, count: 4, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 8, cooldown: 800, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "boomerang", weight: 5 }] },
+  { id: 51, name: 'Shadow Ice Gleeok', hp: 195, damage: 6, defense: 2, speed: 1.5, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 8, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 6, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 9, cooldown: 2000, count: 3, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 7, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 1400, count: 4, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 8, cooldown: 1100, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "fire_rod", weight: 5 }] },
+  { id: 52, name: 'Crystal Agahnim', hp: 115, damage: 7, defense: 3, speed: 0, colors: { body: "#4B0082", eye: "#DA70D6", accent: "#9400D3" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 9, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 9, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 9, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 9, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 11, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 9, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "magic_sword", weight: 5 }] },
+  { id: 53, name: 'Tide Wizzrobe', hp: 150, damage: 5, defense: 1, speed: 0, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 8, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "stalfos"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "ice_rod", weight: 5 }, { item: "magic_potion", weight: 15 }] },
+  { id: 54, name: 'Abyssal Darknut', hp: 115, damage: 6, defense: 3, speed: 1.2, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 6, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 8, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 8, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}, { hpThreshold: 25, attacks: [{ type: "melee", damage: 10, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 6, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "hammer", weight: 8 }] },
+  { id: 55, name: 'Tidal Gleeok', hp: 150, damage: 6, defense: 2, speed: 1.5, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 8, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 6, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 9, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 7, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "fire_rod", weight: 5 }] },
+  { id: 56, name: 'Tide Wizzrobe', hp: 115, damage: 5, defense: 1, speed: 0, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 7, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 8, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "stalfos"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "ice_rod", weight: 5 }] },
+  { id: 57, name: 'Abyssal Moldorm', hp: 105, damage: 6, defense: 2, speed: 2, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 6, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 8, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 8, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "hookshot", weight: 3 }] },
+  { id: 58, name: 'Tidal Genie', hp: 127, damage: 6, defense: 2, speed: 0, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 8, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 9, cooldown: 1000, count: 3, spreadAngle: 120, projectileSpeed: 3}, { type: "projectile", damage: 8, cooldown: 800, count: 2, spreadAngle: 45, projectileSpeed: 3.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "magic_crystal", weight: 10 }] },
+  { id: 59, name: 'Abyssal Like Like', hp: 92, damage: 6, defense: 2, speed: 1, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 6, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 8, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "super_potion", weight: 20 }] },
+  { id: 60, name: 'Tidal Aquamentus', hp: 180, damage: 6, defense: 2, speed: 0, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 8, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 10, cooldown: 1200, count: 3, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "fire_rod", weight: 5 }] },
+  { id: 61, name: 'Abyssal Manhandla', hp: 200, damage: 8, defense: 3, speed: 1.8, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 2000, count: 4, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 10, cooldown: 800, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "boomerang", weight: 5 }] },
+  { id: 62, name: 'Abyssal Water Gleeok', hp: 195, damage: 6, defense: 2, speed: 1.5, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 8, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 6, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 9, cooldown: 2000, count: 3, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 7, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 1400, count: 4, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 8, cooldown: 1100, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "fire_rod", weight: 5 }] },
+  { id: 63, name: 'Tidal Agahnim', hp: 200, damage: 10, defense: 4, speed: 0, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 13, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 13, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 13, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 13, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 15, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 13, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "magic_sword", weight: 5 }] },
+  { id: 64, name: 'Abyssal Darknut', hp: 150, damage: 6, defense: 3, speed: 1.2, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 6, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 8, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 8, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}, { hpThreshold: 25, attacks: [{ type: "melee", damage: 10, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 6, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "hammer", weight: 8 }, { item: "magic_sword", weight: 3 }] },
+  { id: 65, name: 'Abyssal Darknut', hp: 200, damage: 8, defense: 4, speed: 1.2, colors: { body: "#006994", eye: "#00CED1", accent: "#4682B4" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}, { hpThreshold: 25, attacks: [{ type: "melee", damage: 12, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 8, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hammer", weight: 8 }, { item: "magic_sword", weight: 3 }] },
+  { id: 66, name: 'Storm Gleeok', hp: 195, damage: 6, defense: 2, speed: 1.5, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 8, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 6, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 9, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 7, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 3}, { type: "melee", damage: 8, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "fire_rod", weight: 5 }] },
+  { id: 67, name: 'Storm Wizzrobe', hp: 200, damage: 6, defense: 2, speed: 0, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 9, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "stalfos"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "ice_rod", weight: 5 }, { item: "magic_potion", weight: 15 }] },
+  { id: 68, name: 'Cloud Moldorm', hp: 105, damage: 6, defense: 2, speed: 2, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 6, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 8, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 8, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "hookshot", weight: 3 }] },
+  { id: 69, name: 'Sky Genie', hp: 165, damage: 6, defense: 2, speed: 0, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 8, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 9, cooldown: 1000, count: 3, spreadAngle: 120, projectileSpeed: 3}, { type: "projectile", damage: 8, cooldown: 800, count: 2, spreadAngle: 45, projectileSpeed: 3.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "magic_crystal", weight: 10 }] },
+  { id: 70, name: 'Cloud Like Like', hp: 160, damage: 8, defense: 3, speed: 1, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 10, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "super_potion", weight: 20 }] },
+  { id: 71, name: 'Storm Aquamentus', hp: 300, damage: 8, defense: 3, speed: 0, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 10, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 10, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 12, cooldown: 1200, count: 3, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }] },
+  { id: 72, name: 'Storm Manhandla', hp: 200, damage: 8, defense: 3, speed: 1.8, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 2000, count: 4, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 10, cooldown: 800, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "boomerang", weight: 5 }] },
+  { id: 73, name: 'Sky Ice Gleeok', hp: 325, damage: 8, defense: 3, speed: 1.5, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 10, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 8, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 11, cooldown: 2000, count: 3, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 9, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 12, cooldown: 1400, count: 4, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 10, cooldown: 1100, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }, { item: "master_sword", weight: 3 }] },
+  { id: 74, name: 'Storm Agahnim', hp: 200, damage: 10, defense: 4, speed: 0, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 13, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 13, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 13, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 13, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 15, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 13, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "magic_sword", weight: 5 }] },
+  { id: 75, name: 'Storm Gleeok', hp: 325, damage: 8, defense: 3, speed: 1.5, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 10, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 8, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 11, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 9, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 12, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 3}, { type: "melee", damage: 10, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }, { item: "master_sword", weight: 3 }] },
+  { id: 76, name: 'Sky Darknut', hp: 200, damage: 8, defense: 4, speed: 1.2, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}, { hpThreshold: 25, attacks: [{ type: "melee", damage: 12, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 8, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hammer", weight: 8 }, { item: "magic_sword", weight: 3 }] },
+  { id: 77, name: 'Storm Gleeok', hp: 325, damage: 8, defense: 3, speed: 1.5, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 10, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 8, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 11, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 9, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 12, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 3}, { type: "melee", damage: 10, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }, { item: "master_sword", weight: 3 }] },
+  { id: 78, name: 'Storm Wizzrobe', hp: 200, damage: 6, defense: 2, speed: 0, colors: { body: "#FFD700", eye: "#FFFACD", accent: "#FF8C00" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 9, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "stalfos"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "ice_rod", weight: 5 }, { item: "magic_potion", weight: 15 }] },
+  { id: 79, name: 'Shadow Moldorm', hp: 175, damage: 8, defense: 3, speed: 2, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hookshot", weight: 3 }] },
+  { id: 80, name: 'Dark Genie', hp: 275, damage: 8, defense: 3, speed: 0, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 10, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 10, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 11, cooldown: 1000, count: 3, spreadAngle: 120, projectileSpeed: 3}, { type: "projectile", damage: 10, cooldown: 800, count: 2, spreadAngle: 45, projectileSpeed: 3.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "magic_crystal", weight: 10 }] },
+  { id: 81, name: 'Shadow Like Like', hp: 200, damage: 8, defense: 3, speed: 1, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 10, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "super_potion", weight: 20 }] },
+  { id: 82, name: 'Dark Aquamentus', hp: 300, damage: 8, defense: 3, speed: 0, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 10, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 10, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 12, cooldown: 1200, count: 3, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }] },
+  { id: 83, name: 'Dark Manhandla', hp: 250, damage: 8, defense: 3, speed: 1.8, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "charge", drawFunction: "drawGeneric", description: "A spinning plant monster with razor-sharp limbs.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 2000, count: 4, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 10, cooldown: 800, count: 4, spreadAngle: 360, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "boomerang", weight: 5 }] },
+  { id: 84, name: 'Dark Ice Gleeok', hp: 325, damage: 8, defense: 3, speed: 1.5, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "charge", drawFunction: "drawGleeok", description: "A spectral dragon wielding ice and shadow.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 10, cooldown: 2200, count: 2, spreadAngle: 360, projectileSpeed: 1.5}, { type: "melee", damage: 8, cooldown: 1800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 11, cooldown: 2000, count: 3, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 9, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 12, cooldown: 1400, count: 4, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 10, cooldown: 1100, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }, { item: "master_sword", weight: 3 }] },
+  { id: 85, name: 'Void Agahnim', hp: 250, damage: 10, defense: 4, speed: 0, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "stationary", drawFunction: "drawWizzrobe", description: "A dark mage protected by impenetrable barriers.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 13, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 60, attacks: [{ type: "melee", damage: 13, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "projectile", damage: 13, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 30, attacks: [{ type: "projectile", damage: 13, cooldown: 1500, count: 3, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 10, attacks: [{ type: "melee", damage: 15, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 13, cooldown: 1500, count: 4, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "magic_sword", weight: 5 }] },
+  { id: 86, name: 'Shadow Moldorm', hp: 175, damage: 8, defense: 3, speed: 2, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hookshot", weight: 3 }] },
+  { id: 87, name: 'Shadow Darknut', hp: 250, damage: 8, defense: 4, speed: 1.2, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}, { hpThreshold: 25, attacks: [{ type: "melee", damage: 12, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 8, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hammer", weight: 8 }, { item: "magic_sword", weight: 3 }] },
+  { id: 88, name: 'Dark Gleeok', hp: 325, damage: 8, defense: 3, speed: 1.5, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 10, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 8, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 11, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 9, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 12, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 3}, { type: "melee", damage: 10, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }, { item: "master_sword", weight: 3 }] },
+  { id: 89, name: 'Void Wizzrobe', hp: 250, damage: 6, defense: 2, speed: 0, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 8, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 9, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "stalfos"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "ice_rod", weight: 5 }, { item: "magic_potion", weight: 15 }] },
+  { id: 90, name: 'Shadow Moldorm', hp: 175, damage: 8, defense: 3, speed: 2, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hookshot", weight: 3 }] },
+  { id: 91, name: 'Dark Genie', hp: 550, damage: 15, defense: 4, speed: 0, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 20, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 20, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 21, cooldown: 1000, count: 3, spreadAngle: 120, projectileSpeed: 3}, { type: "projectile", damage: 20, cooldown: 800, count: 2, spreadAngle: 45, projectileSpeed: 3.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "magic_crystal", weight: 10 }] },
+  { id: 92, name: 'Shadow Like Like', hp: 200, damage: 8, defense: 3, speed: 1, colors: { body: "#1A0A2A", eye: "#9400D3", accent: "#4B0082" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 10, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "super_potion", weight: 20 }] },
+  { id: 93, name: 'Infernal Aquamentus', hp: 600, damage: 15, defense: 4, speed: 0, colors: { body: "#8B0000", eye: "#FFD700", accent: "#FF4500" }, behavior: "stationary", drawFunction: "drawGleeok", description: "A dragon that breathes flames at everything in sight.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 20, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 2}]}, { hpThreshold: 50, attacks: [{ type: "aoe", damage: 20, cooldown: 1800, count: 3, spreadAngle: 120, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 22, cooldown: 1200, count: 3, spreadAngle: 180, projectileSpeed: 3}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }] },
+  { id: 94, name: 'Abyssal Like Like', hp: 200, damage: 8, defense: 3, speed: 1, colors: { body: "#8B0000", eye: "#FFD700", accent: "#FF4500" }, behavior: "chase", drawFunction: "drawGeneric", description: "A voracious worm that steals hearts and shields.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 40, attacks: [{ type: "melee", damage: 10, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "summon", damage: 0, cooldown: 5000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "slime"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "super_potion", weight: 20 }] },
+  { id: 95, name: 'Demon Genie', hp: 550, damage: 15, defense: 4, speed: 0, colors: { body: "#8B0000", eye: "#FFD700", accent: "#FF4500" }, behavior: "stationary", drawFunction: "drawGeneric", description: "A lamp spirit that unleashes devastating elemental blasts.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 20, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 2.5}]}, { hpThreshold: 50, attacks: [{ type: "projectile", damage: 20, cooldown: 1200, count: 2, spreadAngle: 90, projectileSpeed: 2.5}]}, { hpThreshold: 20, attacks: [{ type: "aoe", damage: 21, cooldown: 1000, count: 3, spreadAngle: 120, projectileSpeed: 3}, { type: "projectile", damage: 20, cooldown: 800, count: 2, spreadAngle: 45, projectileSpeed: 3.5}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "magic_crystal", weight: 10 }] },
+  { id: 96, name: 'Abyssal Moldorm', hp: 175, damage: 8, defense: 3, speed: 2, colors: { body: "#8B0000", eye: "#FFD700", accent: "#FF4500" }, behavior: "charge", drawFunction: "drawGeneric", description: "A giant segmented worm that charges relentlessly.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 2000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 10, cooldown: 3000, count: 1, spreadAngle: 360, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hookshot", weight: 3 }] },
+  { id: 97, name: 'Dark Wizzrobe', hp: 500, damage: 12, defense: 3, speed: 0, colors: { body: "#8B0000", eye: "#FFD700", accent: "#FF4500" }, behavior: "teleport", drawFunction: "drawWizzrobe", description: "A teleporting mage who commands destructive magic.", phases: [{ hpThreshold: 100, attacks: [{ type: "projectile", damage: 16, cooldown: 1500, count: 2, spreadAngle: 60, projectileSpeed: 3}]}, { hpThreshold: 40, attacks: [{ type: "projectile", damage: 17, cooldown: 1200, count: 3, spreadAngle: 90, projectileSpeed: 3.5}, { type: "summon", damage: 0, cooldown: 4000, count: 2, spreadAngle: 0, projectileSpeed: 0, enemyType: "stalfos"}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "ice_rod", weight: 5 }, { item: "magic_potion", weight: 15 }] },
+  { id: 98, name: 'Demon Darknut', hp: 250, damage: 8, defense: 4, speed: 1.2, colors: { body: "#8B0000", eye: "#FFD700", accent: "#FF4500" }, behavior: "chase", drawFunction: "drawDarknut", description: "A heavily-armored knight wielding a massive sword.", phases: [{ hpThreshold: 100, attacks: [{ type: "melee", damage: 8, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 50, attacks: [{ type: "melee", damage: 10, cooldown: 800, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "melee", damage: 10, cooldown: 1500, count: 3, spreadAngle: 120, projectileSpeed: 0}]}, { hpThreshold: 25, attacks: [{ type: "melee", damage: 12, cooldown: 600, count: 1, spreadAngle: 0, projectileSpeed: 0}, { type: "aoe", damage: 8, cooldown: 2000, count: 4, spreadAngle: 180, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "hammer", weight: 8 }, { item: "magic_sword", weight: 3 }] },
+  { id: 99, name: 'Infernal Gleeok', hp: 650, damage: 15, defense: 4, speed: 1.5, colors: { body: "#8B0000", eye: "#FFD700", accent: "#FF4500" }, behavior: "charge", drawFunction: "drawGleeok", description: "A multi-headed dragon whose fiery breath devastates all.", phases: [{ hpThreshold: 100, attacks: [{ type: "aoe", damage: 20, cooldown: 2000, count: 2, spreadAngle: 360, projectileSpeed: 2}, { type: "melee", damage: 15, cooldown: 1500, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 60, attacks: [{ type: "aoe", damage: 21, cooldown: 1800, count: 3, spreadAngle: 360, projectileSpeed: 2.5}, { type: "melee", damage: 16, cooldown: 1200, count: 1, spreadAngle: 0, projectileSpeed: 0}]}, { hpThreshold: 30, attacks: [{ type: "aoe", damage: 22, cooldown: 1200, count: 4, spreadAngle: 360, projectileSpeed: 3}, { type: "melee", damage: 17, cooldown: 1000, count: 1, spreadAngle: 0, projectileSpeed: 0}]}], drops: [{ item: "heart_piece", weight: 100 }, { item: "healing_potion", weight: 30 }, { item: "super_potion", weight: 15 }, { item: "magic_potion", weight: 10 }, { item: "heart_piece", weight: 20 }, { item: "fire_rod", weight: 5 }, { item: "master_sword", weight: 3 }] },
+];
+
+function getBossType(id) {
+  return BOSS_TYPES.find(b => b.id === id);
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { BOSS_TYPES, getBossType };
+}
diff --git a/src/data/dungeons.js b/src/data/dungeons.js
new file mode 100644
index 0000000..8b254bc
--- /dev/null
+++ b/src/data/dungeons.js
@@ -0,0 +1,108 @@
+'use strict';
+
+const DUNGEONS = [
+  { id: 0, name: 'The Stone Chamber', theme: 'stone', difficulty: 1, seed: 0, roomCount: 20, requiredWeapon: null, description: 'A modest stone chamber where adventurers first learn the ways of the sword.' },
+  { id: 1, name: 'The Granite Halls', theme: 'stone', difficulty: 1, seed: 12346, roomCount: 21, requiredWeapon: 'Sword', description: 'Massive granite halls guard an ancient passage. A sword is required to break the stone seal.' },
+  { id: 2, name: 'The Quarry Depths', theme: 'stone', difficulty: 1, seed: 24694, roomCount: 20, requiredWeapon: null, description: 'An abandoned quarry where echoes of forgotten miners still linger in the dark.' },
+  { id: 3, name: 'The Verdant Grove', theme: 'forest', difficulty: 2, seed: 37044, roomCount: 23, requiredWeapon: null, description: 'A living grove where ancient trees shift and rearrange the paths beneath your feet.' },
+  { id: 4, name: 'The Mosswood Sanctum', theme: 'forest', difficulty: 2, seed: 49396, roomCount: 25, requiredWeapon: null, description: 'Thick moss carpets every surface in this hidden woodland sanctuary.' },
+  { id: 5, name: 'The Ancient Canopy', theme: 'forest', difficulty: 1, seed: 61750, roomCount: 22, requiredWeapon: null, description: 'High above the forest floor, platforms of woven branches form an aerial dungeon.' },
+  { id: 6, name: 'The Fernmere Hollow', theme: 'forest', difficulty: 2, seed: 74106, roomCount: 24, requiredWeapon: null, description: 'A sunken hollow choked with ferns and fed by underground streams.' },
+  { id: 7, name: 'The Bramblewood Labyrinth', theme: 'forest', difficulty: 1, seed: 86464, roomCount: 23, requiredWeapon: null, description: 'Thorny brambles twist and turn, forming an ever-shifting maze of thorns.' },
+  { id: 8, name: 'The Oakheart Stronghold', theme: 'forest', difficulty: 2, seed: 98824, roomCount: 26, requiredWeapon: null, description: 'Built inside a colossal oak, this stronghold is defended by tree spirits.' },
+  { id: 9, name: 'The Willowmere Temple', theme: 'forest', difficulty: 2, seed: 111186, roomCount: 27, requiredWeapon: null, description: 'Weeping willows drape over a waterside temple of forgotten forest gods.' },
+  { id: 10, name: 'The Thornwood Bastion', theme: 'forest', difficulty: 2, seed: 123550, roomCount: 23, requiredWeapon: null, description: 'A fortified grove where every plant is a weapon and every path a trap.' },
+  { id: 11, name: 'The Elderwood Ruins', theme: 'forest', difficulty: 3, seed: 135916, roomCount: 32, requiredWeapon: null, description: 'The crumbling ruins of an ancient forest civilization, overgrown with time.' },
+  { id: 12, name: 'The Sylvan Depths', theme: 'forest', difficulty: 2, seed: 148284, roomCount: 25, requiredWeapon: null, description: 'Deep within the forest, roots have carved vast chambers into the earth below.' },
+  { id: 13, name: 'The Myconid Caverns', theme: 'forest', difficulty: 3, seed: 160654, roomCount: 34, requiredWeapon: null, description: 'Giant fungal colonies pulse with bioluminescent light in these underground caverns.' },
+  { id: 14, name: 'The Treant\'s Lair', theme: 'forest', difficulty: 2, seed: 173026, roomCount: 27, requiredWeapon: null, description: 'The ancient treant guards its hollowed heart, a labyrinth of wood and sap.' },
+  { id: 15, name: 'The Sandstone Temple', theme: 'desert', difficulty: 3, seed: 185400, roomCount: 33, requiredWeapon: 'Bow', description: 'An ancient desert temple where only an arrow can open the sealed gateway.' },
+  { id: 16, name: 'The Scorch Dunes', theme: 'desert', difficulty: 2, seed: 197776, roomCount: 24, requiredWeapon: null, description: 'Burning dunes hide buried chambers that shift with every shifting sandstorm.' },
+  { id: 17, name: 'The Oasis of Mirages', theme: 'desert', difficulty: 2, seed: 210154, roomCount: 24, requiredWeapon: null, description: 'A shimmering oasis that may or may not be real — trust nothing in the desert heat.' },
+  { id: 18, name: 'The Dunehowl Fortress', theme: 'desert', difficulty: 3, seed: 222534, roomCount: 35, requiredWeapon: null, description: 'A fortress carved into a dune, its walls howling with desert winds.' },
+  { id: 19, name: 'The Sunblasted Ziggurat', theme: 'desert', difficulty: 3, seed: 234916, roomCount: 30, requiredWeapon: null, description: 'A towering ziggurat baked by millennia of relentless sun.' },
+  { id: 20, name: 'The Mirage Wastes', theme: 'desert', difficulty: 3, seed: 247300, roomCount: 32, requiredWeapon: null, description: 'Endless wastes where reality distorts and paths lead nowhere but deeper.' },
+  { id: 21, name: 'The Glass Desert', theme: 'desert', difficulty: 4, seed: 259686, roomCount: 37, requiredWeapon: null, description: 'A desert where ancient fire turned sand to glass, creating razor-sharp terrain.' },
+  { id: 22, name: 'The Serpent\'s Burrow', theme: 'desert', difficulty: 3, seed: 272074, roomCount: 36, requiredWeapon: null, description: 'A vast network of tunnels dug by a legendary desert serpent.' },
+  { id: 23, name: 'The Dune Sea', theme: 'desert', difficulty: 4, seed: 284464, roomCount: 39, requiredWeapon: null, description: 'An ocean of sand where buried cities lie beneath the shifting dunes.' },
+  { id: 24, name: 'The Obsidian Crater', theme: 'desert', difficulty: 3, seed: 296856, roomCount: 31, requiredWeapon: null, description: 'A volcanic crater of black obsidian, still warm from ancient eruptions.' },
+  { id: 25, name: 'The Sunken Caravan', theme: 'desert', difficulty: 4, seed: 309250, roomCount: 41, requiredWeapon: null, description: 'A buried caravan of sandships, swallowed whole by a sudden dune collapse.' },
+  { id: 26, name: 'The Scorpion\'s Keep', theme: 'desert', difficulty: 3, seed: 321646, roomCount: 33, requiredWeapon: null, description: 'A fortress shaped like a giant scorpion, its pincers guarding the entrance.' },
+  { id: 27, name: 'The Avalanche Peak', theme: 'mountain', difficulty: 4, seed: 334044, roomCount: 38, requiredWeapon: 'Hammer', description: 'A treacherous mountain peak where only a hammer can shatter the ice seals.' },
+  { id: 28, name: 'The Summit Shrine', theme: 'mountain', difficulty: 3, seed: 346444, roomCount: 36, requiredWeapon: null, description: 'A shrine perched at the mountain\'s summit, reachable only by daring climbers.' },
+  { id: 29, name: 'The Thunderhead Pass', theme: 'mountain', difficulty: 4, seed: 358846, roomCount: 40, requiredWeapon: null, description: 'A mountain pass perpetually shrouded in thunderclouds and lightning.' },
+  { id: 30, name: 'The Frostbite Crags', theme: 'mountain', difficulty: 4, seed: 371250, roomCount: 36, requiredWeapon: null, description: 'Frozen crags where the cold itself is a deadly enemy.' },
+  { id: 31, name: 'The Cloudspire Tower', theme: 'mountain', difficulty: 5, seed: 383656, roomCount: 47, requiredWeapon: null, description: 'A tower that pierces the clouds, its upper floors lost in mist.' },
+  { id: 32, name: 'The Avalanche Caverns', theme: 'mountain', difficulty: 4, seed: 396064, roomCount: 42, requiredWeapon: null, description: 'Underground caverns beneath the peaks, filled with glacial melt and echoing thunder.' },
+  { id: 33, name: 'The Geyser Springs', theme: 'mountain', difficulty: 5, seed: 408474, roomCount: 49, requiredWeapon: null, description: 'A network of caverns heated by underground geysers that erupt without warning.' },
+  { id: 34, name: 'The Iron Peak', theme: 'mountain', difficulty: 4, seed: 420886, roomCount: 38, requiredWeapon: null, description: 'A mountain rich in iron ore, its mines form an intricate subterranean maze.' },
+  { id: 35, name: 'The Stormridge Stronghold', theme: 'mountain', difficulty: 5, seed: 433300, roomCount: 48, requiredWeapon: null, description: 'A fortress on a lightning-battered ridge, built by storm-worshipping ancients.' },
+  { id: 36, name: 'The Yeti\'s Den', theme: 'mountain', difficulty: 4, seed: 445716, roomCount: 41, requiredWeapon: null, description: 'A frozen cave system inhabited by the legendary mountain yeti.' },
+  { id: 37, name: 'The Glacier\'s Edge', theme: 'mountain', difficulty: 5, seed: 458134, roomCount: 50, requiredWeapon: null, description: 'A labyrinth carved into a massive glacier, its passages shifting with the ice.' },
+  { id: 38, name: 'The Thunderpeak Fortress', theme: 'mountain', difficulty: 4, seed: 470554, roomCount: 37, requiredWeapon: null, description: 'A fortress built into a peak struck by lightning every storm season.' },
+  { id: 39, name: 'The Underroot Caverns', theme: 'underground', difficulty: 5, seed: 482976, roomCount: 45, requiredWeapon: 'Bomb', description: 'Massive root systems form a subterranean web. Bombs are needed to clear the way.' },
+  { id: 40, name: 'The Crystal Grotto', theme: 'underground', difficulty: 5, seed: 495400, roomCount: 47, requiredWeapon: null, description: 'A vast grotto filled with glowing crystals that sing when the wind passes through.' },
+  { id: 41, name: 'The Fungal Hollows', theme: 'underground', difficulty: 6, seed: 507826, roomCount: 53, requiredWeapon: null, description: 'Giant mushroom forests grow in the dark, their spores a constant hazard.' },
+  { id: 42, name: 'The Deepdelve Mines', theme: 'underground', difficulty: 5, seed: 520254, roomCount: 51, requiredWeapon: null, description: 'Ancient mining tunnels that stretch deeper than any living soul has ventured.' },
+  { id: 43, name: 'The Echoing Chasm', theme: 'underground', difficulty: 6, seed: 532684, roomCount: 55, requiredWeapon: null, description: 'A bottomless chasm where every sound reverberates into madness.' },
+  { id: 44, name: 'The Burrow Networks', theme: 'underground', difficulty: 5, seed: 545116, roomCount: 46, requiredWeapon: null, description: 'An intricate network of burrows connecting the roots of the entire forest above.' },
+  { id: 45, name: 'The Subterranean Lake', theme: 'underground', difficulty: 6, seed: 557550, roomCount: 52, requiredWeapon: null, description: 'A vast underground lake with submerged chambers accessible only by diving.' },
+  { id: 46, name: 'The Limestone Vaults', theme: 'underground', difficulty: 5, seed: 569986, roomCount: 49, requiredWeapon: null, description: 'Natural limestone vaults formed by millennia of dripping mineral water.' },
+  { id: 47, name: 'The Mole\'s Labyrinth', theme: 'underground', difficulty: 6, seed: 582424, roomCount: 56, requiredWeapon: null, description: 'A mole empire has constructed an impossibly complex labyrinth beneath the earth.' },
+  { id: 48, name: 'The Geode Chamber', theme: 'underground', difficulty: 5, seed: 594864, roomCount: 50, requiredWeapon: null, description: 'A massive geode split open to reveal crystalline chambers of breathtaking beauty.' },
+  { id: 49, name: 'The Tunnels of Ash', theme: 'underground', difficulty: 6, seed: 607306, roomCount: 54, requiredWeapon: null, description: 'Tunnels filled with volcanic ash that clouds vision and chokes the breath.' },
+  { id: 50, name: 'The Darkdelve', theme: 'underground', difficulty: 6, seed: 619750, roomCount: 51, requiredWeapon: null, description: 'The deepest point of the underground realm, where darkness has a will of its own.' },
+  { id: 51, name: 'The Basalt Depths', theme: 'underground', difficulty: 7, seed: 632196, roomCount: 62, requiredWeapon: null, description: 'Columns of basalt form a natural maze deep beneath the crust.' },
+  { id: 52, name: 'The Core Chamber', theme: 'underground', difficulty: 6, seed: 644644, roomCount: 57, requiredWeapon: null, description: 'The legendary chamber near the earth\'s core, pulsing with raw elemental energy.' },
+  { id: 53, name: 'The Coral Reef Temple', theme: 'ocean', difficulty: 7, seed: 657094, roomCount: 64, requiredWeapon: 'Fire Rod', description: 'A temple built into a living coral reef. A fire rod is needed to burn through the kelp gates.' },
+  { id: 54, name: 'The Abyssal Trench', theme: 'ocean', difficulty: 6, seed: 669546, roomCount: 53, requiredWeapon: null, description: 'A trench plunging into the deepest ocean, where pressure crushes all but the brave.' },
+  { id: 55, name: 'The Tidepool Sanctum', theme: 'ocean', difficulty: 6, seed: 682000, roomCount: 61, requiredWeapon: null, description: 'A network of tide pools that fill and drain with the moon, shifting the dungeon layout.' },
+  { id: 56, name: 'The Kraken\'s Lair', theme: 'ocean', difficulty: 6, seed: 694456, roomCount: 55, requiredWeapon: null, description: 'The underwater lair of a legendary kraken, its tentacles blocking every exit.' },
+  { id: 57, name: 'The Kelp Forest', theme: 'ocean', difficulty: 7, seed: 706914, roomCount: 67, requiredWeapon: null, description: 'A dense forest of giant kelp that sways and entangles the unwary.' },
+  { id: 58, name: 'The Sunken Fortress', theme: 'ocean', difficulty: 6, seed: 719374, roomCount: 63, requiredWeapon: null, description: 'A fortress sunk by a great flood, its flooded halls now home to ocean creatures.' },
+  { id: 59, name: 'The Pearl Grotto', theme: 'ocean', difficulty: 6, seed: 731836, roomCount: 60, requiredWeapon: null, description: 'A grotto lined with iridescent pearls, guarded by pearl-diving ogresses.' },
+  { id: 60, name: 'The Leviathan\'s Maw', theme: 'ocean', difficulty: 7, seed: 744300, roomCount: 65, requiredWeapon: null, description: 'A dungeon inside the skeletal remains of a colossal leviathan.' },
+  { id: 61, name: 'The Brine Caverns', theme: 'ocean', difficulty: 8, seed: 756766, roomCount: 70, requiredWeapon: null, description: 'Salt caves beneath the ocean floor, their walls encrusted with millennia of brine.' },
+  { id: 62, name: 'The Tidal Depths', theme: 'ocean', difficulty: 7, seed: 769234, roomCount: 66, requiredWeapon: null, description: 'Chambers that flood and drain with the tides, requiring precise timing to navigate.' },
+  { id: 63, name: 'The Shipwreck Cavern', theme: 'ocean', difficulty: 8, seed: 781704, roomCount: 72, requiredWeapon: null, description: 'A cavern filled with the ghostly wrecks of a hundred sunken ships.' },
+  { id: 64, name: 'The Nautilus Chamber', theme: 'ocean', difficulty: 7, seed: 794176, roomCount: 68, requiredWeapon: null, description: 'A chamber shaped like a nautilus shell, its spiral passages leading to the center.' },
+  { id: 65, name: 'The Abyssal Throne', theme: 'ocean', difficulty: 8, seed: 806650, roomCount: 69, requiredWeapon: null, description: 'The throne room of the ocean king, at the bottom of the deepest abyss.' },
+  { id: 66, name: 'The Cloudspire Aerie', theme: 'sky', difficulty: 7, seed: 819126, roomCount: 63, requiredWeapon: 'Ice Rod', description: 'A soaring aerie among the clouds. An ice rod is required to freeze the wind bridges.' },
+  { id: 67, name: 'The Stratosphere Temple', theme: 'sky', difficulty: 8, seed: 831604, roomCount: 74, requiredWeapon: null, description: 'A temple floating in the stratosphere, accessible only by enchanted flight.' },
+  { id: 68, name: 'The Galewind Fortress', theme: 'sky', difficulty: 7, seed: 844084, roomCount: 68, requiredWeapon: null, description: 'A fortress battered by hurricane winds on every side.' },
+  { id: 69, name: 'The Celestial Observatory', theme: 'sky', difficulty: 7, seed: 856566, roomCount: 65, requiredWeapon: null, description: 'An ancient observatory where star-aligned mechanisms guard celestial secrets.' },
+  { id: 70, name: 'The Zephyr\'s Roost', theme: 'sky', difficulty: 8, seed: 869050, roomCount: 71, requiredWeapon: null, description: 'The nesting ground of legendary wind spirits, perched on floating islands.' },
+  { id: 71, name: 'The Cumulus Citadel', theme: 'sky', difficulty: 9, seed: 881536, roomCount: 82, requiredWeapon: null, description: 'A citadel built entirely from solidified cloud matter, shifting with the weather.' },
+  { id: 72, name: 'The Starfall Platform', theme: 'sky', difficulty: 8, seed: 894024, roomCount: 73, requiredWeapon: null, description: 'A platform where fallen stars are collected and stored as powerful weapons.' },
+  { id: 73, name: 'The Nimbus Sanctum', theme: 'sky', difficulty: 9, seed: 906514, roomCount: 85, requiredWeapon: null, description: 'A sanctum hidden within a permanent storm cloud, crackling with energy.' },
+  { id: 74, name: 'The Thundercloud Tower', theme: 'sky', difficulty: 8, seed: 919006, roomCount: 75, requiredWeapon: null, description: 'A tower wreathed in perpetual lightning, its floors charged with electricity.' },
+  { id: 75, name: 'The Aurora Spire', theme: 'sky', difficulty: 9, seed: 931500, roomCount: 84, requiredWeapon: null, description: 'A spire illuminated by eternal auroras, its colors shifting with the dungeon\'s mood.' },
+  { id: 76, name: 'The Jetstream Labyrinth', theme: 'sky', difficulty: 8, seed: 943996, roomCount: 70, requiredWeapon: null, description: 'A labyrinth of floating platforms riding the jet stream at impossible altitudes.' },
+  { id: 77, name: 'The Zenith Keep', theme: 'sky', difficulty: 9, seed: 956494, roomCount: 88, requiredWeapon: null, description: 'The highest keep in the sky realm, where the boundary between heaven and earth blurs.' },
+  { id: 78, name: 'The Firmament Palace', theme: 'sky', difficulty: 8, seed: 968994, roomCount: 72, requiredWeapon: null, description: 'A palace built upon the firmament itself, its walls painted with constellations.' },
+  { id: 79, name: 'The Eclipse Fortress', theme: 'shadow', difficulty: 9, seed: 981496, roomCount: 83, requiredWeapon: 'Hookshot', description: 'A fortress born from a solar eclipse. A hookshot is needed to cross the void gaps.' },
+  { id: 80, name: 'The Umbral Caverns', theme: 'shadow', difficulty: 9, seed: 994000, roomCount: 80, requiredWeapon: null, description: 'Caverns of pure shadow where light itself is consumed and never returns.' },
+  { id: 81, name: 'The Duskwood Labyrinth', theme: 'shadow', difficulty: 9, seed: 1006506, roomCount: 86, requiredWeapon: null, description: 'A labyrinth of eternal dusk where time stands still and hope fades slowly.' },
+  { id: 82, name: 'The Nightfall Temple', theme: 'shadow', difficulty: 9, seed: 1019014, roomCount: 84, requiredWeapon: null, description: 'A temple dedicated to the goddess of night, her shadow stretching across every chamber.' },
+  { id: 83, name: 'The Phantom\'s Reach', theme: 'shadow', difficulty: 9, seed: 1031524, roomCount: 87, requiredWeapon: null, description: 'A realm where phantoms roam freely and the living are mere intruders.' },
+  { id: 84, name: 'The Twilight Abyss', theme: 'shadow', difficulty: 9, seed: 1044036, roomCount: 82, requiredWeapon: null, description: 'An abyss of twilight where the boundary between worlds grows dangerously thin.' },
+  { id: 85, name: 'The Shadowmoor', theme: 'shadow', difficulty: 9, seed: 1056550, roomCount: 89, requiredWeapon: null, description: 'A moor of shadow where the ground itself is alive and hungry.' },
+  { id: 86, name: 'The Void\'s Edge', theme: 'shadow', difficulty: 9, seed: 1069066, roomCount: 85, requiredWeapon: null, description: 'The edge of the void itself, where reality unravels into nothingness.' },
+  { id: 87, name: 'The Darkflame Sanctum', theme: 'shadow', difficulty: 9, seed: 1081584, roomCount: 88, requiredWeapon: null, description: 'A sanctum lit by darkflame torches that burn with cold, shadowy fire.' },
+  { id: 88, name: 'The Tenebris Keep', theme: 'shadow', difficulty: 9, seed: 1094104, roomCount: 83, requiredWeapon: null, description: 'A keep named for darkness itself, its walls absorbing all light.' },
+  { id: 89, name: 'The Wraith\'s Domain', theme: 'shadow', difficulty: 9, seed: 1106626, roomCount: 90, requiredWeapon: null, description: 'The domain of an ancient wraith, where the dead have long since forgotten they were alive.' },
+  { id: 90, name: 'The Abyssal Shadow', theme: 'shadow', difficulty: 9, seed: 1119150, roomCount: 81, requiredWeapon: null, description: 'The deepest shadow in the realm, where even fear cannot penetrate.' },
+  { id: 91, name: 'The Obsidian Void', theme: 'shadow', difficulty: 10, seed: 1131676, roomCount: 92, requiredWeapon: null, description: 'A void of obsidian darkness — the penultimate trial before the final confrontation.' },
+  { id: 92, name: 'The Endless Night', theme: 'shadow', difficulty: 9, seed: 1144204, roomCount: 86, requiredWeapon: null, description: 'An eternal night with no dawn, a dungeon that never lets you leave easily.' },
+  { id: 93, name: 'The Demon\'s Keep', theme: 'final', difficulty: 10, seed: 1156734, roomCount: 95, requiredWeapon: null, description: 'The keep of the great demon. All paths lead to the final battle.' },
+  { id: 94, name: 'The Dark Lord\'s Throne', theme: 'final', difficulty: 9, seed: 1169266, roomCount: 97, requiredWeapon: null, description: 'The throne room of the dark lord, where the fate of the world will be decided.' },
+  { id: 95, name: 'The Final Bastion', theme: 'final', difficulty: 10, seed: 1181800, roomCount: 98, requiredWeapon: null, description: 'The last bastion between the hero and the source of all evil.' },
+  { id: 96, name: 'The World\'s End', theme: 'final', difficulty: 9, seed: 1194336, roomCount: 92, requiredWeapon: null, description: 'The edge of the world, where the fabric of reality tears and chaos reigns.' },
+  { id: 97, name: 'The Last Stand', theme: 'final', difficulty: 10, seed: 1206874, roomCount: 100, requiredWeapon: null, description: 'The final confrontation. There is no retreat — only victory or oblivion.' },
+  { id: 98, name: 'The Creator\'s Chamber', theme: 'final', difficulty: 9, seed: 1219414, roomCount: 95, requiredWeapon: null, description: 'The chamber of the world\'s creator, holding the secrets of existence itself.' },
+  { id: 99, name: 'The Eternal Realm', theme: 'final', difficulty: 10, seed: 1231956, roomCount: 97, requiredWeapon: null, description: 'Beyond the final door lies the eternal realm — where the true nature of everything awaits.' },
+];
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { DUNGEONS };
+}
\ No newline at end of file
diff --git a/src/data/enemies.js b/src/data/enemies.js
new file mode 100644
index 0000000..9d4e177
--- /dev/null
+++ b/src/data/enemies.js
@@ -0,0 +1,406 @@
+'use strict';
+
+const ENEMY_TYPES = [
+  {
+    id: 'slime',
+    name: 'Slime',
+    hp: 2,
+    damage: 1,
+    defense: 0,
+    behavior: 'patrol',
+    speed: 1.0,
+    attackRange: 1,
+    colors: { body: '#6B8E23', eye: '#000', accent: '#8FBC8F' },
+    drawFunction: 'drawSlime',
+    drops: [
+      { item: 'rupee_green', weight: 80 },
+      { item: 'rupee_blue', weight: 15 },
+      { item: 'healing_potion', weight: 5 }
+    ]
+  },
+  {
+    id: 'slime_red',
+    name: 'Red Slime',
+    hp: 4,
+    damage: 2,
+    defense: 0,
+    behavior: 'patrol',
+    speed: 1.2,
+    attackRange: 1,
+    colors: { body: '#B22222', eye: '#000', accent: '#FF6347' },
+    drawFunction: 'drawSlime',
+    drops: [
+      { item: 'rupee_blue', weight: 70 },
+      { item: 'rupee_red', weight: 20 },
+      { item: 'healing_potion', weight: 10 }
+    ]
+  },
+  {
+    id: 'slime_blue',
+    name: 'Blue Slime',
+    hp: 6,
+    damage: 3,
+    defense: 1,
+    behavior: 'patrol',
+    speed: 0.8,
+    attackRange: 1,
+    colors: { body: '#4169E1', eye: '#000', accent: '#87CEEB' },
+    drawFunction: 'drawSlime',
+    drops: [
+      { item: 'rupee_red', weight: 60 },
+      { item: 'rupee_yellow', weight: 30 },
+      { item: 'healing_potion', weight: 10 }
+    ]
+  },
+  {
+    id: 'keese',
+    name: 'Keese',
+    hp: 1,
+    damage: 1,
+    defense: 0,
+    behavior: 'chase',
+    speed: 2.0,
+    attackRange: 1,
+    colors: { body: '#4B0082', eye: '#FFFF00', accent: '#800080' },
+    drawFunction: 'drawKeese',
+    drops: [
+      { item: 'rupee_green', weight: 90 },
+      { item: 'healing_potion', weight: 10 }
+    ]
+  },
+  {
+    id: 'octorok',
+    name: 'Octorok',
+    hp: 3,
+    damage: 0,
+    defense: 0,
+    behavior: 'ranged',
+    speed: 0.5,
+    attackRange: 4,
+    projectileSpeed: 3,
+    colors: { body: '#8B4513', eye: '#FFF', accent: '#D2691E' },
+    drawFunction: 'drawOctorok',
+    drops: [
+      { item: 'rupee_green', weight: 70 },
+      { item: 'rupee_blue', weight: 20 },
+      { item: 'arrow', weight: 10 }
+    ]
+  },
+  {
+    id: 'moblin',
+    name: 'Moblin',
+    hp: 8,
+    damage: 4,
+    defense: 2,
+    behavior: 'chase',
+    speed: 1.5,
+    attackRange: 1,
+    colors: { body: '#2E8B57', eye: '#FF0000', accent: '#228B22' },
+    drawFunction: 'drawMoblin',
+    drops: [
+      { item: 'rupee_blue', weight: 60 },
+      { item: 'rupee_red', weight: 25 },
+      { item: 'healing_potion', weight: 10 },
+      { item: 'sword', weight: 2 },
+      { item: 'arrow', weight: 3 }
+    ]
+  },
+  {
+    id: 'stalfos',
+    name: 'Stalfos',
+    hp: 5,
+    damage: 3,
+    defense: 1,
+    behavior: 'chase',
+    speed: 1.8,
+    attackRange: 1,
+    colors: { body: '#F5F5DC', eye: '#FF0000', accent: '#DDA0DD' },
+    drawFunction: 'drawStalfos',
+    drops: [
+      { item: 'rupee_red', weight: 50 },
+      { item: 'rupee_yellow', weight: 30 },
+      { item: 'healing_potion', weight: 15 },
+      { item: 'bomb', weight: 5 }
+    ]
+  },
+  {
+    id: 'goriya',
+    name: 'Goriya',
+    hp: 6,
+    damage: 3,
+    defense: 2,
+    behavior: 'chase',
+    speed: 1.6,
+    attackRange: 2,
+    colors: { body: '#DC143C', eye: '#FFF', accent: '#FF6347' },
+    drawFunction: 'drawGoriya',
+    drops: [
+      { item: 'rupee_red', weight: 50 },
+      { item: 'rupee_yellow', weight: 25 },
+      { item: 'healing_potion', weight: 15 },
+      { item: 'bow', weight: 5 },
+      { item: 'arrow', weight: 5 }
+    ]
+  },
+  {
+    id: 'armos',
+    name: 'Armos Knight',
+    hp: 10,
+    damage: 5,
+    defense: 3,
+    behavior: 'stationary',
+    speed: 0,
+    attackRange: 1,
+    colors: { body: '#FFD700', eye: '#000080', accent: '#FF8C00' },
+    drawFunction: 'drawArmos',
+    drops: [
+      { item: 'rupee_yellow', weight: 50 },
+      { item: 'healing_potion', weight: 30 },
+      { item: 'hammer', weight: 5 },
+      { item: 'heart_piece', weight: 2 }
+    ]
+  },
+  {
+    id: 'lynel',
+    name: 'Lynel',
+    hp: 20,
+    damage: 8,
+    defense: 4,
+    behavior: 'charge',
+    speed: 2.5,
+    attackRange: 2,
+    colors: { body: '#8B0000', eye: '#FFD700', accent: '#FF4500' },
+    drawFunction: 'drawLynel',
+    drops: [
+      { item: 'rupee_yellow', weight: 40 },
+      { item: 'healing_potion', weight: 30 },
+      { item: 'heart_piece', weight: 10 },
+      { item: 'sword', weight: 5 },
+      { item: 'arrow', weight: 5 },
+      { item: 'bomb', weight: 5 },
+      { item: 'boomerang', weight: 2 },
+      { item: 'magic_potion', weight: 3 }
+    ]
+  },
+  {
+    id: 'like',
+    name: 'Like Like',
+    hp: 4,
+    damage: 2,
+    defense: 1,
+    behavior: 'chase',
+    speed: 1.2,
+    attackRange: 1,
+    colors: { body: '#708090', eye: '#FF0000', accent: '#A9A9A9' },
+    drawFunction: 'drawSlime',
+    drops: [
+      { item: 'rupee_blue', weight: 60 },
+      { item: 'rupee_red', weight: 30 },
+      { item: 'healing_potion', weight: 10 }
+    ]
+  },
+  {
+    id: 'bub',
+    name: 'Bub',
+    hp: 3,
+    damage: 2,
+    defense: 0,
+    behavior: 'patrol',
+    speed: 1.0,
+    attackRange: 1,
+    colors: { body: '#696969', eye: '#FFF', accent: '#808080' },
+    drawFunction: 'drawKeese',
+    drops: [
+      { item: 'rupee_green', weight: 70 },
+      { item: 'rupee_blue', weight: 20 },
+      { item: 'healing_potion', weight: 10 }
+    ]
+  },
+  {
+    id: 'reedeath',
+    name: 'Reedeath',
+    hp: 3,
+    damage: 1,
+    defense: 0,
+    behavior: 'stationary',
+    speed: 0,
+    attackRange: 1,
+    colors: { body: '#228B22', eye: '#FFF', accent: '#32CD32' },
+    drawFunction: 'drawStalfos',
+    drops: [
+      { item: 'rupee_green', weight: 80 },
+      { item: 'healing_potion', weight: 15 },
+      { item: 'bomb', weight: 5 }
+    ]
+  },
+  {
+    id: 'wallmaster',
+    name: 'Wallmaster',
+    hp: 2,
+    damage: 15,
+    defense: 0,
+    behavior: 'teleport',
+    speed: 0,
+    attackRange: 1,
+    colors: { body: '#8B0000', eye: '#FFD700', accent: '#4B0082' },
+    drawFunction: 'drawKeese',
+    drops: [
+      { item: 'rupee_yellow', weight: 60 },
+      { item: 'heart_piece', weight: 20 },
+      { item: 'healing_potion', weight: 20 }
+    ]
+  },
+  {
+    id: 'manhandla',
+    name: 'Manhandla',
+    hp: 12,
+    damage: 6,
+    defense: 2,
+    behavior: 'charge',
+    speed: 2.0,
+    attackRange: 1,
+    colors: { body: '#8B4513', eye: '#FF0000', accent: '#D2691E' },
+    drawFunction: 'drawSlime',
+    drops: [
+      { item: 'rupee_red', weight: 50 },
+      { item: 'rupee_yellow', weight: 30 },
+      { item: 'healing_potion', weight: 15 },
+      { item: 'heart_piece', weight: 5 }
+    ]
+  },
+  {
+    id: 'tektite',
+    name: 'Tektite',
+    hp: 2,
+    damage: 1,
+    defense: 0,
+    behavior: 'patrol',
+    speed: 1.5,
+    attackRange: 1,
+    colors: { body: '#A0522D', eye: '#FFD700', accent: '#CD853F' },
+    drawFunction: 'drawKeese',
+    drops: [
+      { item: 'rupee_green', weight: 80 },
+      { item: 'healing_potion', weight: 15 },
+      { item: 'rupee_blue', weight: 5 }
+    ]
+  },
+  {
+    id: 'leever',
+    name: 'Leever',
+    hp: 4,
+    damage: 2,
+    defense: 1,
+    behavior: 'charge',
+    speed: 2.0,
+    attackRange: 1,
+    colors: { body: '#DAA520', eye: '#000', accent: '#FFD700' },
+    drawFunction: 'drawKeese',
+    drops: [
+      { item: 'rupee_blue', weight: 60 },
+      { item: 'rupee_red', weight: 25 },
+      { item: 'healing_potion', weight: 15 }
+    ]
+  },
+  {
+    id: 'skullwallma',
+    name: 'Skullwallma',
+    hp: 5,
+    damage: 3,
+    defense: 1,
+    behavior: 'stationary',
+    speed: 0,
+    attackRange: 1,
+    colors: { body: '#F5F5DC', eye: '#FF0000', accent: '#DDA0DD' },
+    drawFunction: 'drawStalfos',
+    drops: [
+      { item: 'rupee_red', weight: 50 },
+      { item: 'healing_potion', weight: 30 },
+      { item: 'bomb', weight: 15 },
+      { item: 'heart_piece', weight: 5 }
+    ]
+  },
+  {
+    id: 'ironknuckle',
+    name: 'Iron Knuckle',
+    hp: 15,
+    damage: 7,
+    defense: 4,
+    behavior: 'chase',
+    speed: 1.8,
+    attackRange: 2,
+    colors: { body: '#708090', eye: '#FF0000', accent: '#C0C0C0' },
+    drawFunction: 'drawMoblin',
+    drops: [
+      { item: 'rupee_yellow', weight: 40 },
+      { item: 'healing_potion', weight: 30 },
+      { item: 'sword', weight: 10 },
+      { item: 'heart_piece', weight: 10 },
+      { item: 'arrow', weight: 10 }
+    ]
+  },
+  {
+    id: 'darknut',
+    name: 'Darknut',
+    hp: 18,
+    damage: 6,
+    defense: 5,
+    behavior: 'chase',
+    speed: 1.4,
+    attackRange: 1,
+    colors: { body: '#2F4F4F', eye: '#FF0000', accent: '#708090' },
+    drawFunction: 'drawMoblin',
+    drops: [
+      { item: 'rupee_yellow', weight: 40 },
+      { item: 'healing_potion', weight: 25 },
+      { item: 'heart_piece', weight: 15 },
+      { item: 'hammer', weight: 10 },
+      { item: 'boomerang', weight: 10 }
+    ]
+  },
+  {
+    id: 'wizzrobe',
+    name: 'Wizzrobe',
+    hp: 8,
+    damage: 5,
+    defense: 1,
+    behavior: 'teleport',
+    speed: 0,
+    attackRange: 4,
+    colors: { body: '#4B0082', eye: '#FFFF00', accent: '#800080' },
+    drawFunction: 'drawStalfos',
+    drops: [
+      { item: 'rupee_yellow', weight: 40 },
+      { item: 'healing_potion', weight: 20 },
+      { item: 'heart_piece', weight: 15 },
+      { item: 'magic_potion', weight: 15 },
+      { item: 'fire_rod', weight: 5 },
+      { item: 'ice_rod', weight: 5 }
+    ]
+  },
+  {
+    id: 'peahat',
+    name: 'Peahat',
+    hp: 2,
+    damage: 1,
+    defense: 0,
+    behavior: 'stationary',
+    speed: 0,
+    attackRange: 1,
+    colors: { body: '#228B22', eye: '#FFD700', accent: '#FF69B4' },
+    drawFunction: 'drawStalfos',
+    drops: [
+      { item: 'rupee_green', weight: 80 },
+      { item: 'healing_potion', weight: 15 },
+      { item: 'rupee_blue', weight: 5 }
+    ]
+  }
+];
+
+function getEnemyType(id) {
+  return ENEMY_TYPES.find(e => e.id === id);
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { ENEMY_TYPES, getEnemyType };
+}
\ No newline at end of file
diff --git a/src/data/items.js b/src/data/items.js
new file mode 100644
index 0000000..0124e62
--- /dev/null
+++ b/src/data/items.js
@@ -0,0 +1,25 @@
+'use strict';
+
+const ITEMS = [
+  { id: 'healing_potion', name: 'Healing Potion', type: 'consumable', description: 'Restores 1 heart.', color: '#FF69B4', stackable: true, value: 0 },
+  { id: 'super_potion', name: 'Super Potion', type: 'consumable', description: 'Restores 3 hearts.', color: '#FF1493', stackable: true, value: 0 },
+  { id: 'magic_potion', name: 'Magic Potion', type: 'consumable', description: 'Restores magic power.', color: '#9400D3', stackable: true, value: 0 },
+  { id: 'heart_piece', name: 'Heart Piece', type: 'consumable', description: 'Permanently increases max HP by 1/4 heart.', color: '#FF0000', stackable: false, value: 0 },
+  { id: 'arrow', name: 'Arrow', type: 'material', description: 'Ammunition for the Bow.', color: '#8B4513', stackable: true, value: 0 },
+  { id: 'bomb', name: 'Bomb', type: 'material', description: 'Explodes on impact. Destroys walls.', color: '#8B4513', stackable: true, value: 0 },
+  { id: 'key', name: 'Key', type: 'key', description: 'Opens locked doors.', color: '#FFD700', stackable: true, value: 0 },
+  { id: 'small_key', name: 'Small Key', type: 'key', description: 'Opens chests and small doors.', color: '#DAA520', stackable: true, value: 0 },
+  { id: 'rupee_green', name: 'Green Rupee', type: 'currency', description: 'Worth 1 rupee.', color: '#00FF00', stackable: true, value: 1 },
+  { id: 'rupee_blue', name: 'Blue Rupee', type: 'currency', description: 'Worth 5 rupees.', color: '#0000FF', stackable: true, value: 5 },
+  { id: 'rupee_red', name: 'Red Rupee', type: 'currency', description: 'Worth 20 rupees.', color: '#FF0000', stackable: true, value: 20 },
+  { id: 'rupee_yellow', name: 'Yellow Rupee', type: 'currency', description: 'Worth 100 rupees.', color: '#FFD700', stackable: true, value: 100 },
+  { id: 'magic_crystal', name: 'Magic Crystal', type: 'material', description: 'Used to power magic weapons.', color: '#E0FFFF', stackable: true, value: 0 }
+];
+
+function getItem(id) {
+  return ITEMS.find(i => i.id === id);
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { ITEMS, getItem };
+}
\ No newline at end of file
diff --git a/src/data/themes.js b/src/data/themes.js
new file mode 100644
index 0000000..e5dd45f
--- /dev/null
+++ b/src/data/themes.js
@@ -0,0 +1,155 @@
+'use strict';
+
+// === DUNGEON THEMES ===
+// Each theme defines color palettes and aesthetic properties for dungeon generation
+
+const THEMES = {
+  stone: {
+    name: 'Stone',
+    floorColor: '#C4A265',
+    floorDarkColor: '#A8884D',
+    wallColor: '#505050',
+    wallTopColor: '#6E6E6E',
+    wallFrontColor: '#5A5A5A',
+    wallBottomColor: '#383838',
+    wallBorderColor: '#404040',
+    torchGlow: 'rgba(255,140,0,0.15)',
+    torchStickColor: '#654321',
+    torchFlameColor: '#FF8C00',
+    torchCoreColor: '#FFFF00',
+    cellColor: '#505050',
+    cellTextColor: '#FFF',
+  },
+  forest: {
+    name: 'Forest',
+    floorColor: '#4A6741',
+    floorDarkColor: '#3A5731',
+    wallColor: '#5D4037',
+    wallTopColor: '#6D5047',
+    wallFrontColor: '#5D4037',
+    wallBottomColor: '#4D3027',
+    wallBorderColor: '#3D2017',
+    torchGlow: 'rgba(100,200,100,0.15)',
+    torchStickColor: '#4A3020',
+    torchFlameColor: '#00FF00',
+    torchCoreColor: '#AAFFAA',
+    cellColor: '#2E5A2E',
+    cellTextColor: '#AFA',
+  },
+  desert: {
+    name: 'Desert',
+    floorColor: '#D4A567',
+    floorDarkColor: '#C49557',
+    wallColor: '#8B7355',
+    wallTopColor: '#9B8365',
+    wallFrontColor: '#8B7355',
+    wallBottomColor: '#7B6345',
+    wallBorderColor: '#6B5335',
+    torchGlow: 'rgba(255,200,100,0.15)',
+    torchStickColor: '#654321',
+    torchFlameColor: '#FFD700',
+    torchCoreColor: '#FFFFAA',
+    cellColor: '#C49557',
+    cellTextColor: '#3A2A1A',
+  },
+  mountain: {
+    name: 'Mountain',
+    floorColor: '#708090',
+    floorDarkColor: '#607080',
+    wallColor: '#4A5568',
+    wallTopColor: '#5A6578',
+    wallFrontColor: '#4A5568',
+    wallBottomColor: '#3A4558',
+    wallBorderColor: '#2A3548',
+    torchGlow: 'rgba(200,200,255,0.15)',
+    torchStickColor: '#4A4040',
+    torchFlameColor: '#87CEEB',
+    torchCoreColor: '#E0F0FF',
+    cellColor: '#4A5568',
+    cellTextColor: '#E0E8F0',
+  },
+  underground: {
+    name: 'Underground',
+    floorColor: '#3A3A3A',
+    floorDarkColor: '#2A2A2A',
+    wallColor: '#2D2D2D',
+    wallTopColor: '#3D3D3D',
+    wallFrontColor: '#2D2D2D',
+    wallBottomColor: '#1D1D1D',
+    wallBorderColor: '#151515',
+    torchGlow: 'rgba(255,100,0,0.2)',
+    torchStickColor: '#3A3020',
+    torchFlameColor: '#FF6347',
+    torchCoreColor: '#FFD700',
+    cellColor: '#2D2D2D',
+    cellTextColor: '#FFD700',
+  },
+  ocean: {
+    name: 'Ocean',
+    floorColor: '#4682B4',
+    floorDarkColor: '#3672A4',
+    wallColor: '#2F4F6F',
+    wallTopColor: '#3F5F7F',
+    wallFrontColor: '#2F4F6F',
+    wallBottomColor: '#1F3F5F',
+    wallBorderColor: '#0F2F4F',
+    torchGlow: 'rgba(100,150,255,0.15)',
+    torchStickColor: '#3A4050',
+    torchFlameColor: '#00BFFF',
+    torchCoreColor: '#E0FFFF',
+    cellColor: '#2F4F6F',
+    cellTextColor: '#AFDCF0',
+  },
+  sky: {
+    name: 'Sky',
+    floorColor: '#E8E0D0',
+    floorDarkColor: '#D8D0C0',
+    wallColor: '#F0E8D8',
+    wallTopColor: '#F8F0E8',
+    wallFrontColor: '#F0E8D8',
+    wallBottomColor: '#E0D8C8',
+    wallBorderColor: '#D0C8B8',
+    torchGlow: 'rgba(255,255,200,0.15)',
+    torchStickColor: '#8B7355',
+    torchFlameColor: '#FFD700',
+    torchCoreColor: '#FFFACD',
+    cellColor: '#F0E8D8',
+    cellTextColor: '#5A4A3A',
+  },
+  shadow: {
+    name: 'Shadow',
+    floorColor: '#1A0A2A',
+    floorDarkColor: '#0A001A',
+    wallColor: '#2A1A3A',
+    wallTopColor: '#3A2A4A',
+    wallFrontColor: '#2A1A3A',
+    wallBottomColor: '#1A0A2A',
+    wallBorderColor: '#0A0010',
+    torchGlow: 'rgba(150,0,200,0.2)',
+    torchStickColor: '#2A1A2A',
+    torchFlameColor: '#9400D3',
+    torchCoreColor: '#DA70D6',
+    cellColor: '#2A1A3A',
+    cellTextColor: '#D0A0E0',
+  },
+  final: {
+    name: 'Final',
+    floorColor: '#2A0A0A',
+    floorDarkColor: '#1A0000',
+    wallColor: '#3A1A1A',
+    wallTopColor: '#4A2A2A',
+    wallFrontColor: '#3A1A1A',
+    wallBottomColor: '#2A0A0A',
+    wallBorderColor: '#1A0000',
+    torchGlow: 'rgba(255,0,0,0.25)',
+    torchStickColor: '#3A0A0A',
+    torchFlameColor: '#FF0000',
+    torchCoreColor: '#FF4500',
+    cellColor: '#3A0A0A',
+    cellTextColor: '#FF6347',
+  },
+};
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { THEMES };
+}
\ No newline at end of file
diff --git a/src/data/weapons.js b/src/data/weapons.js
new file mode 100644
index 0000000..8ffaacb
--- /dev/null
+++ b/src/data/weapons.js
@@ -0,0 +1,180 @@
+'use strict';
+
+const WEAPONS = [
+  {
+    id: 'sword',
+    name: 'Sword',
+    damage: 3,
+    type: 'melee',
+    range: 1,
+    cooldown: 400,
+    ammo: null,
+    ammoCost: 1,
+    color: '#C0C0C0',
+    effect: null,
+    drawFunction: 'drawSword',
+    description: 'A basic sword. Reliable and versatile.'
+  },
+  {
+    id: 'bow',
+    name: 'Bow',
+    damage: 2,
+    type: 'ranged',
+    range: 8,
+    cooldown: 800,
+    ammo: 'arrow',
+    ammoCost: 1,
+    color: '#8B4513',
+    effect: null,
+    drawFunction: 'drawBow',
+    description: 'Shoots arrows at distant foes.'
+  },
+  {
+    id: 'boomerang',
+    name: 'Boomerang',
+    damage: 2,
+    type: 'ranged',
+    range: 5,
+    cooldown: 1200,
+    ammo: null,
+    ammoCost: 1,
+    color: '#FF8C00',
+    effect: 'stun',
+    drawFunction: 'drawBoomerang',
+    description: 'Returns to hand. Stuns enemies on hit.'
+  },
+  {
+    id: 'hammer',
+    name: 'Hammer',
+    damage: 5,
+    type: 'melee',
+    range: 2,
+    cooldown: 1000,
+    ammo: null,
+    ammoCost: 1,
+    color: '#8B4513',
+    effect: null,
+    drawFunction: 'drawHammer',
+    description: 'Heavy weapon. Breaks walls and cracks blocks.'
+  },
+  {
+    id: 'bomb',
+    name: 'Bomb',
+    damage: 4,
+    type: 'consumable',
+    range: 2,
+    cooldown: 600,
+    ammo: 'bomb',
+    ammoCost: 1,
+    color: '#8B4513',
+    effect: 'explode',
+    drawFunction: 'drawBomb',
+    description: 'Creates an explosion. Destroys breakable blocks.'
+  },
+  {
+    id: 'fire_rod',
+    name: 'Fire Rod',
+    damage: 3,
+    type: 'ranged',
+    range: 6,
+    cooldown: 1000,
+    ammo: 'magic',
+    ammoCost: 1,
+    color: '#FF4500',
+    effect: 'fire',
+    drawFunction: 'drawFireRod',
+    description: 'Shoots fireballs. Burns enemies over time.'
+  },
+  {
+    id: 'ice_rod',
+    name: 'Ice Rod',
+    damage: 2,
+    type: 'ranged',
+    range: 5,
+    cooldown: 1200,
+    ammo: 'magic',
+    ammoCost: 1,
+    color: '#87CEEB',
+    effect: 'ice',
+    drawFunction: 'drawIceRod',
+    description: 'Freezes enemies in place.'
+  },
+  {
+    id: 'hookshot',
+    name: 'Hookshot',
+    damage: 1,
+    type: 'ranged',
+    range: 8,
+    cooldown: 1500,
+    ammo: null,
+    ammoCost: 1,
+    color: '#C0C0C0',
+    effect: null,
+    drawFunction: 'drawHookshot',
+    description: 'Grapples to targets across gaps.'
+  },
+  {
+    id: 'master_sword',
+    name: 'Master Sword',
+    damage: 5,
+    type: 'melee',
+    range: 1,
+    cooldown: 350,
+    ammo: null,
+    ammoCost: 1,
+    color: '#FFD700',
+    effect: null,
+    drawFunction: 'drawMasterSword',
+    description: 'The legendary blade of the hero.'
+  },
+  {
+    id: 'magic_sword',
+    name: 'Magic Sword',
+    damage: 6,
+    type: 'melee',
+    range: 2,
+    cooldown: 500,
+    ammo: 'magic',
+    ammoCost: 1,
+    color: '#9400D3',
+    effect: 'stun',
+    drawFunction: 'drawMagicSword',
+    description: 'Deals magic damage and stuns foes.'
+  },
+  {
+    id: 'slingshot',
+    name: 'Slingshot',
+    damage: 1,
+    type: 'ranged',
+    range: 5,
+    cooldown: 600,
+    ammo: null,
+    ammoCost: 1,
+    color: '#8B4513',
+    effect: null,
+    drawFunction: 'drawSlingshot',
+    description: 'Simple but effective. No ammo needed.'
+  },
+  {
+    id: 'bug_net',
+    name: 'Bug Net',
+    damage: 1,
+    type: 'melee',
+    range: 1,
+    cooldown: 500,
+    ammo: null,
+    ammoCost: 1,
+    color: '#87CEEB',
+    effect: null,
+    drawFunction: 'drawBugNet',
+    description: 'Captures small creatures.'
+  }
+];
+
+function getWeapon(id) {
+  return WEAPONS.find(w => w.id === id);
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { WEAPONS, getWeapon };
+}
\ No newline at end of file
diff --git a/src/game/ai.js b/src/game/ai.js
new file mode 100644
index 0000000..00a34eb
--- /dev/null
+++ b/src/game/ai.js
@@ -0,0 +1,360 @@
+'use strict';
+
+// === ENEMY AI SYSTEM ===
+
+function updateEnemies(dt) {
+  // Update regular enemies
+  for (const enemy of [...gameState.enemies]) {
+    enemy.moveTimer -= dt;
+    enemy.attackTimer -= dt;
+    if (enemy.hitTimer > 0) enemy.hitTimer -= dt;
+    if (enemy.specialTimer > 0) {
+      enemy.specialTimer -= dt;
+      if (enemy.specialTimer <= 0) {
+        enemy.stunned = false;
+        enemy.frozen = false;
+        enemy.onFire = false;
+      }
+    }
+    if (enemy.onFire) {
+      enemy.attackTimer -= dt * 0.5; // Fire damage
+      if (enemy.attackTimer <= 0) {
+        enemy.attackTimer = 1000;
+        enemy.hp -= 1;
+        spawnParticles(enemy.x * TILE + TILE / 2, enemy.y * TILE + TILE / 2, '#FF4500', 2);
+      }
+    }
+
+    // Skip AI if stunned or frozen
+    if (enemy.stunned || enemy.frozen) continue;
+
+    // Movement AI
+    if (enemy.moveTimer <= 0) {
+      enemy.moveTimer = enemy.moveInterval || ENEMY_MOVE_INTERVAL;
+      updateEnemyMovement(enemy);
+    }
+
+    // Attack AI
+    if (manhattanDist(enemy.x, enemy.y, gameState.player.x, gameState.player.y) <= (enemy.attackRange || 1)) {
+      if (enemy.attackTimer <= 0) {
+        enemy.attackTimer = enemy.attackInterval || ENEMY_ATTACK_INTERVAL;
+        enemyAttack(enemy);
+      }
+    }
+
+    // Special behaviors
+    if (enemy.behavior === 'ranged' && enemy.projectileTimer !== undefined) {
+      enemy.projectileTimer -= dt;
+      if (enemy.projectileTimer <= 0) {
+        enemy.projectileTimer = enemy.shootInterval || 3000;
+        enemyShoot(enemy);
+      }
+    }
+    if (enemy.behavior === 'charge') {
+      if (enemy.chargeTimer !== undefined) {
+        enemy.chargeTimer -= dt;
+        if (enemy.chargeTimer <= 0 && !enemy.charging) {
+          enemy.charging = true;
+          enemy.chargeDuration = 1000;
+        }
+      }
+      if (enemy.charging) {
+        enemy.chargeDuration -= dt;
+        if (enemy.chargeDuration <= 0) {
+          enemy.charging = false;
+          enemy.chargeTimer = enemy.chargeCooldown || 5000;
+          enemyCharge(enemy);
+        }
+      }
+    }
+  }
+
+  // Update boss AI
+  if (gameState.currentBoss) {
+    const boss = gameState.currentBoss;
+    boss.moveTimer -= dt;
+    boss.attackTimer -= dt;
+    if (boss.hitTimer > 0) boss.hitTimer -= dt;
+    if (boss.specialTimer > 0) {
+      boss.specialTimer -= dt;
+      if (boss.specialTimer <= 0) {
+        boss.stunned = false;
+        boss.frozen = false;
+      }
+    }
+
+    if (!boss.stunned && !boss.frozen) {
+      if (boss.moveTimer <= 0) {
+        boss.moveTimer = boss.moveInterval || ENEMY_MOVE_INTERVAL;
+        updateBossMovement(boss);
+      }
+      if (boss.attackTimer <= 0) {
+        boss.attackTimer = boss.attackInterval || ENEMY_ATTACK_INTERVAL;
+        bossAttack(boss);
+      }
+    }
+  }
+
+  // Update projectiles
+  updateProjectiles(dt);
+}
+
+function updateEnemyMovement(enemy) {
+  const px = gameState.player.x;
+  const py = gameState.player.y;
+  const dist = manhattanDist(enemy.x, enemy.y, px, py);
+
+  // Behavior: chase
+  if (enemy.behavior === 'chase' || enemy.behavior === 'ranged' || enemy.behavior === 'charge') {
+    if (enemy.behavior === 'ranged' && dist < (enemy.minRange || 3)) return; // Back away if too close
+    if (enemy.behavior === 'ranged' && dist > (enemy.maxRange || 8)) {
+      // Move closer if too far
+      moveToward(enemy, px, py);
+      return;
+    }
+    moveToward(enemy, px, py);
+    return;
+  }
+
+  // Behavior: patrol
+  if (enemy.behavior === 'patrol') {
+    if (!enemy.patrolPath || enemy.patrolIdx === undefined) {
+      enemy.patrolIdx = 0;
+      enemy.patrolPath = generatePatrolPath(enemy);
+    }
+    if (enemy.patrolPath) {
+      const target = enemy.patrolPath[enemy.patrolIdx];
+      if (target) {
+        moveToward(enemy, target.x, target.y);
+        if (enemy.x === target.x && enemy.y === target.y) {
+          enemy.patrolIdx = (enemy.patrolIdx + 1) % enemy.patrolPath.length;
+        }
+      }
+    }
+    return;
+  }
+
+  // Behavior: stationary
+  if (enemy.behavior === 'stationary') {
+    if (dist <= (enemy.activateRange || 2)) {
+      moveToward(enemy, px, py);
+    }
+    return;
+  }
+
+  // Behavior: teleport
+  if (enemy.behavior === 'teleport') {
+    if (enemy.teleportTimer !== undefined) {
+      enemy.teleportTimer -= dt;
+      if (enemy.teleportTimer <= 0) {
+        enemy.teleportTimer = enemy.teleportInterval || 4000;
+        // Teleport near player
+        const tx = clamp(px + randInt(-2, 2), 1, COLS - 2);
+        const ty = clamp(py + randInt(-2, 2), 1, ROWS - 2);
+        if (isPassable(gameState.layout, tx, ty)) {
+          spawnParticles(enemy.x * TILE + TILE / 2, enemy.y * TILE + TILE / 2, '#8B008B', 6);
+          enemy.x = tx;
+          enemy.y = ty;
+          spawnParticles(enemy.x * TILE + TILE / 2, enemy.y * TILE + TILE / 2, '#8B008B', 6);
+        }
+      }
+    }
+    return;
+  }
+
+  // Behavior: explode
+  if (enemy.behavior === 'explode') {
+    moveToward(enemy, px, py);
+    if (manhattanDist(enemy.x, enemy.y, px, py) === 0) {
+      // Explode!
+      spawnParticles(enemy.x * TILE + TILE / 2, enemy.y * TILE + TILE / 2, '#FF4500', 12);
+      enemy.hp = 0;
+      // Damage player if adjacent
+      if (manhattanDist(enemy.x, enemy.y, px, py) <= 1 && !gameState.player.invincible) {
+        gameState.player.hp -= (enemy.explodeDamage || 3);
+        gameState.player.hitTimer = HIT_FLASH;
+        showMessage('Explosion!');
+      }
+      // Damage in radius
+      for (const other of gameState.enemies) {
+        if (other !== enemy && manhattanDist(enemy.x, enemy.y, other.x, other.y) <= (enemy.explodeRadius || 2)) {
+          dealDamage(other, enemy.explodeDamage || 2, { name: 'explosion' });
+        }
+      }
+    }
+  }
+}
+
+function moveToward(entity, tx, ty) {
+  const dx = tx - entity.x;
+  const dy = ty - entity.y;
+  let bestDir = null;
+  let bestDist = manhattanDist(entity.x, entity.y, tx, ty);
+
+  for (let d = 0; d < 4; d++) {
+    const nx = entity.x + DIRS[d].x;
+    const ny = entity.y + DIRS[d].y;
+
+    if (!inBounds(nx, ny)) continue;
+    if (isWall(gameState.layout, nx, ny)) continue;
+    if (gameState.layout[ny][nx] === TILE_TYPES.LAVA) continue;
+    if (gameState.rocks.find(r => r.x === nx && r.y === ny)) continue;
+    if (gameState.enemies.find(e => e !== entity && e.x === nx && e.y === ny)) continue;
+    if (gameState.chests.find(c => c.x === nx && c.y === ny)) continue;
+    if (gameState.player.x === nx && gameState.player.y === ny) continue;
+    if (gameState.currentBoss && gameState.currentBoss.x === nx && gameState.currentBoss.y === ny) continue;
+
+    const newDist = manhattanDist(nx, ny, tx, ty);
+    if (newDist < bestDist) {
+      bestDist = newDist;
+      bestDir = d;
+    }
+  }
+
+  if (bestDir !== null) {
+    entity.x += DIRS[bestDir].x;
+    entity.y += DIRS[bestDir].y;
+  }
+}
+
+function updateBossMovement(boss) {
+  moveToward(boss, gameState.player.x, gameState.player.y);
+}
+
+function enemyAttack(enemy) {
+  if (gameState.player.invincible || gameState.player.invincibleTimer > 0) return;
+
+  const damage = enemy.attackDamage || 2;
+  gameState.player.hp -= damage;
+  gameState.player.hitTimer = HIT_FLASH;
+  showMessage(`Hit by ${enemy.name}! (-${damage} HP)`);
+}
+
+function bossAttack(boss) {
+  if (gameState.player.invincible || gameState.player.invincibleTimer > 0) return;
+
+  const attacks = boss.attacks || [{ type: 'melee', damage: 3 }];
+  const attack = attacks[Math.floor((boss.rng ? boss.rng() : Math.random()) * attacks.length)];
+
+  if (attack.type === 'melee') {
+    if (manhattanDist(boss.x, boss.y, gameState.player.x, gameState.player.y) <= (attack.range || 1)) {
+      gameState.player.hp -= attack.damage;
+      gameState.player.hitTimer = HIT_FLASH;
+      showMessage(`Boss attack! (-${attack.damage} HP)`);
+    }
+  }
+
+  if (attack.type === 'ranged') {
+    const dir = computeDirection(boss.x, boss.y, gameState.player.x, gameState.player.y);
+    spawnProjectile(boss.x, boss.y, dir, {
+      damage: attack.damage,
+      projSpeed: attack.speed || 3,
+      projRange: attack.range || 6,
+      projColor: attack.color || '#FF0000',
+      name: 'boss_proj',
+    });
+  }
+
+  if (attack.type === 'aoe') {
+    spawnParticles(boss.x * TILE + TILE / 2, boss.y * TILE + TILE / 2, attack.color || '#FF00FF', 15);
+    if (manhattanDist(boss.x, boss.y, gameState.player.x, gameState.player.y) <= (attack.radius || 3)) {
+      gameState.player.hp -= attack.damage;
+      gameState.player.hitTimer = HIT_FLASH;
+      showMessage(`Boss AoE attack! (-${attack.damage} HP)`);
+    }
+  }
+}
+
+function enemyShoot(enemy) {
+  const dir = computeDirection(enemy.x, enemy.y, gameState.player.x, gameState.player.y);
+  spawnProjectile(enemy.x, enemy.y, dir, {
+    damage: enemy.shootDamage || 1,
+    projSpeed: enemy.shootSpeed || 3,
+    projRange: enemy.shootRange || 5,
+    projColor: enemy.projColor || '#FFFF00',
+    name: 'enemy_proj',
+  });
+}
+
+function enemyCharge(enemy) {
+  const dir = computeDirection(enemy.x, enemy.y, gameState.player.x, gameState.player.y);
+  const speed = enemy.chargeSpeed || 3;
+  for (let i = 0; i < speed; i++) {
+    const nx = enemy.x + dir.x;
+    const ny = enemy.y + dir.y;
+    if (!isPassable(gameState.layout, nx, ny)) break;
+    if (gameState.enemies.find(e => e !== enemy && e.x === nx && e.y === ny)) break;
+    if (gameState.player.x === nx && gameState.player.y === ny) {
+      if (!gameState.player.invincible) {
+        gameState.player.hp -= (enemy.chargeDamage || 3);
+        gameState.player.hitTimer = HIT_FLASH;
+        showMessage('Charged into you!');
+      }
+      break;
+    }
+    enemy.x = nx;
+    enemy.y = ny;
+    spawnParticles(nx * TILE + TILE / 2, ny * TILE + TILE / 2, '#FFFFFF', 2);
+  }
+}
+
+function computeDirection(x1, y1, x2, y2) {
+  const dx = x2 - x1;
+  const dy = y2 - y1;
+  if (Math.abs(dx) > Math.abs(dy)) {
+    return { x: dx > 0 ? 1 : -1, y: 0 };
+  } else {
+    return { x: 0, y: dy > 0 ? 1 : -1 };
+  }
+}
+
+function generatePatrolPath(enemy) {
+  const path = [];
+  const points = enemy.patrolPoints || [];
+  if (points.length >= 2) return points;
+
+  // Generate random patrol points around spawn position
+  const sx = enemy.spawnX || enemy.x;
+  const sy = enemy.spawnY || enemy.y;
+  for (let i = 0; i < 4; i++) {
+    const px = clamp(sx + randInt(-3, 3), 1, COLS - 2);
+    const py = clamp(sy + randInt(-3, 3), 1, ROWS - 2);
+    if (isPassable(gameState.layout, px, py)) {
+      path.push({ x: px, y: py });
+    }
+  }
+  if (path.length < 2) path.push({ x: sx, y: sy }, { x: clamp(sx + 2, 1, COLS - 2), y: sy });
+  return path;
+}
+
+function createEnemyInstance(def, x, y) {
+  return {
+    name: def.name,
+    id: def.id,
+    x: x, y: y,
+    spawnX: x, spawnY: y,
+    hp: def.hp,
+    maxHp: def.hp,
+    defense: def.defense || 0,
+    attackDamage: def.attackDamage || 1,
+    moveInterval: def.moveInterval || ENEMY_MOVE_INTERVAL,
+    attackInterval: def.attackInterval || ENEMY_ATTACK_INTERVAL,
+    attackRange: def.attackRange || 1,
+    behavior: def.behavior || 'chase',
+    moveTimer: ENEMY_MOVE_INTERVAL,
+    attackTimer: ENEMY_ATTACK_INTERVAL,
+    hitTimer: 0,
+    stunned: false,
+    frozen: false,
+    onFire: false,
+    specialTimer: 0,
+    projectileTimer: def.projectileInterval ? def.projectileInterval : undefined,
+    color: def.color,
+    colorLight: def.colorLight,
+    eyeColor: def.eyeColor,
+  };
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { updateEnemies, updateEnemyMovement, moveToward, enemyAttack, bossAttack, createEnemyInstance };
+}
\ No newline at end of file
diff --git a/src/game/combat.js b/src/game/combat.js
new file mode 100644
index 0000000..2b367b4
--- /dev/null
+++ b/src/game/combat.js
@@ -0,0 +1,222 @@
+'use strict';
+
+// === COMBAT SYSTEM ===
+
+function tryAttack() {
+  const weapon = gameState.player.activeWeapon;
+  if (!weapon) {
+    // Try to use first available weapon
+    if (gameState.player.weapons.length > 0) {
+      gameState.player.activeWeapon = gameState.player.weapons[0];
+    } else {
+      showMessage('You need a weapon!');
+      return;
+    }
+  }
+
+  const active = gameState.player.activeWeapon;
+  if (gameState.player.attackTimer > 0) return;
+
+  // Check ammo
+  if (active.ammoRequired) {
+    const ammoType = active.ammoType || 'arrows';
+    const ammoCount = ammoType === 'arrows' ? gameState.player.arrows : gameState.player.bombs;
+    if (ammoCount <= 0) {
+      showMessage(`No ${ammoType} left!`);
+      return;
+    }
+    if (ammoType === 'arrows') gameState.player.arrows--;
+    else gameState.player.bombs--;
+  }
+
+  // Set attack timer
+  gameState.player.attackTimer = active.cooldown || ATTACK_COOLDOWN;
+  gameState.player.attackAnim = active.animDuration || ATTACK_ANIM;
+
+  const dir = DIRS[gameState.player.dir];
+  const range = active.range || 1;
+
+  // Melee attack
+  if (active.type === 'melee') {
+    for (let i = 1; i <= range; i++) {
+      const ax = gameState.player.x + dir.x * i;
+      const ay = gameState.player.y + dir.y * i;
+      if (!inBounds(ax, ay)) break;
+
+      // Hit enemies
+      for (const enemy of gameState.enemies) {
+        if (enemy.x === ax && enemy.y === ay) {
+          dealDamage(enemy, active.damage, active);
+        }
+      }
+
+      // Hit boss
+      if (gameState.currentBoss && gameState.currentBoss.x === ax && gameState.currentBoss.y === ay) {
+        dealDamage(gameState.currentBoss, active.damage, active);
+      }
+    }
+
+    // AoE weapons hit in arc
+    if (active.aoe) {
+      for (const enemy of gameState.enemies) {
+        if (manhattanDist(gameState.player.x, gameState.player.y, enemy.x, enemy.y) <= active.aoeRange) {
+          dealDamage(enemy, Math.floor(active.damage * 0.5), active);
+        }
+      }
+    }
+  }
+
+  // Ranged attack
+  if (active.type === 'ranged') {
+    spawnProjectile(gameState.player.x, gameState.player.y, dir, active);
+  }
+
+  // Special effects
+  if (active.effect === 'stun') {
+    for (const enemy of gameState.enemies) {
+      if (enemy.x === gameState.player.x + dir.x && enemy.y === gameState.player.y + dir.y) {
+        enemy.stunned = true;
+        enemy.specialTimer = active.effectDuration || 2000;
+      }
+    }
+  }
+  if (active.effect === 'freeze') {
+    for (const enemy of gameState.enemies) {
+      if (enemy.x === gameState.player.x + dir.x && enemy.y === gameState.player.y + dir.y) {
+        enemy.frozen = true;
+        enemy.specialTimer = active.effectDuration || 3000;
+      }
+    }
+  }
+  if (active.effect === 'fire') {
+    for (const enemy of gameState.enemies) {
+      if (enemy.x === gameState.player.x + dir.x && enemy.y === gameState.player.y + dir.y) {
+        dealDamage(enemy, active.damage, active);
+        enemy.onFire = true;
+        enemy.specialTimer = active.effectDuration || 2000;
+      }
+    }
+  }
+
+  // Clean up dead enemies
+  const beforeCount = gameState.enemies.length;
+  gameState.enemies = gameState.enemies.filter(e => e.hp > 0);
+  const killed = beforeCount - gameState.enemies.length;
+  if (killed > 0) {
+    gameState.enemiesDefeated += killed;
+    showMessage(`${killed} enemy${killed > 1 ? 'ies' : ''} defeated!`);
+  }
+
+  // Check boss death
+  if (gameState.currentBoss && gameState.currentBoss.hp <= 0) {
+    const boss = gameState.currentBoss;
+    showMessage(`${boss.name} defeated!`);
+    gameState.currentBoss = null;
+    gameState.exitOpen = true;
+    gameState.enemiesDefeated++;
+    spawnParticles(boss.x * TILE + TILE / 2, boss.y * TILE + TILE / 2, '#FFD700', 20);
+  }
+
+  // If no enemies and no exit, room is clear
+  if (gameState.enemies.length === 0 && !gameState.exit && !gameState.currentBoss) {
+    gameState.exitOpen = true;
+    showMessage('Room cleared!');
+  }
+}
+
+function dealDamage(target, damage, weapon) {
+  if (target.invincible && target.invincibleTimer > 0) return;
+
+  // Apply defense reduction
+  const def = target.defense || 0;
+  const actualDamage = Math.max(1, damage - def);
+  target.hp -= actualDamage;
+  target.hitTimer = HIT_FLASH;
+
+  // Spawn hit particles
+  spawnParticles(target.x * TILE + TILE / 2, target.y * TILE + TILE / 2, '#FF0000', 4);
+
+  // Check for phase change (bosses)
+  if (target.phases && target.phases[target.phase + 1] && target.hp <= target.phases[target.phase + 1].hpThreshold * target.maxHp / 100) {
+    target.phase++;
+    showMessage(`${target.name} enrage${target.phase > 0 ? 's' : ''}! (Phase ${target.phase + 1})`);
+    target.attackTimer = 0;
+    target.moveTimer = 0;
+  }
+}
+
+function spawnProjectile(x, y, dir, weapon) {
+  if (!gameState.projectiles) gameState.projectiles = [];
+  gameState.projectiles.push({
+    x: x + dir.x,
+    y: y + dir.y,
+    dir: { ...dir },
+    speed: weapon.projSpeed || 4,
+    damage: weapon.damage,
+    range: weapon.projRange || 8,
+    traveled: 0,
+    type: weapon.type,
+    effect: weapon.effect,
+    effectDuration: weapon.effectDuration,
+    color: weapon.projColor || '#FFFF00',
+    moveTimer: 0,
+  });
+}
+
+function updateProjectiles(dt) {
+  if (!gameState.projectiles) return;
+  for (let i = gameState.projectiles.length - 1; i >= 0; i--) {
+    const p = gameState.projectiles[i];
+    p.moveTimer -= dt;
+    if (p.moveTimer > 0) continue;
+    p.moveTimer = 100;
+
+    const nx = p.x + p.dir.x;
+    const ny = p.y + p.dir.y;
+    p.traveled++;
+
+    // Check bounds
+    if (!inBounds(nx, ny) || p.traveled >= p.range) {
+      gameState.projectiles.splice(i, 1);
+      continue;
+    }
+
+    // Check walls
+    if (isWall(gameState.layout, nx, ny)) {
+      spawnParticles(nx * TILE + TILE / 2, ny * TILE + TILE / 2, p.color, 3);
+      gameState.projectiles.splice(i, 1);
+      continue;
+    }
+
+    // Hit enemies
+    let hit = false;
+    for (const enemy of gameState.enemies) {
+      if (enemy.x === nx && enemy.y === ny) {
+        dealDamage(enemy, p.damage, { name: 'projectile' });
+        if (p.effect === 'stun') { enemy.stunned = true; enemy.specialTimer = p.effectDuration || 2000; }
+        if (p.effect === 'freeze') { enemy.frozen = true; enemy.specialTimer = p.effectDuration || 3000; }
+        hit = true;
+        break;
+      }
+    }
+
+    // Hit boss
+    if (!hit && gameState.currentBoss && gameState.currentBoss.x === nx && gameState.currentBoss.y === ny) {
+      dealDamage(gameState.currentBoss, p.damage, { name: 'projectile' });
+      hit = true;
+    }
+
+    if (hit) {
+      spawnParticles(nx * TILE + TILE / 2, ny * TILE + TILE / 2, '#FF0000', 5);
+      gameState.projectiles.splice(i, 1);
+      continue;
+    }
+
+    p.x = nx;
+    p.y = ny;
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { tryAttack, dealDamage, spawnProjectile, updateProjectiles };
+}
\ No newline at end of file
diff --git a/src/game/items.js b/src/game/items.js
new file mode 100644
index 0000000..c602e7d
--- /dev/null
+++ b/src/game/items.js
@@ -0,0 +1,148 @@
+'use strict';
+
+// === ITEM SYSTEM ===
+
+var Save = typeof require !== 'undefined' ? require('../save/save') : {};
+var saveData = Save.saveData || window.saveData;
+var saveProgress = Save.saveProgress || window.saveProgress;
+var addHeartPiece = Save.addHeartPiece || window.addHeartPiece;
+var addWeapon = Save.addWeapon || window.addWeapon;
+
+function openChest(chest) {
+  chest.opened = true;
+  const loot = chest.loot;
+  if (!loot) return;
+
+  spawnParticles(chest.x * TILE + TILE / 2, chest.y * TILE + TILE / 2, '#FFD700', 10);
+
+  if (loot.type === 'weapon') {
+    const weaponDef = WEAPONS.find(w => w.name === loot.name);
+    if (weaponDef && !gameState.player.weapons.find(w => w.name === weaponDef.name)) {
+      gameState.player.weapons.push({ ...weaponDef });
+      if (!gameState.player.activeWeapon) {
+        gameState.player.activeWeapon = gameState.player.weapons[0];
+      }
+      addWeapon(weaponDef.name);
+      showMessage(`Got ${weaponDef.name}!`);
+    }
+  }
+
+  if (loot.type === 'consumable') {
+    const itemDef = ITEMS.find(i => i.name === loot.name);
+    if (itemDef) {
+      if (itemDef.id === 'potion_small') {
+        gameState.player.hp = Math.min(gameState.player.hp + 4, gameState.player.maxHp);
+        showMessage('Small Potion! (+4 HP)');
+      } else if (itemDef.id === 'potion_medium') {
+        gameState.player.hp = Math.min(gameState.player.hp + 8, gameState.player.maxHp);
+        showMessage('Medium Potion! (+8 HP)');
+      } else if (itemDef.id === 'potion_large') {
+        gameState.player.hp = Math.min(gameState.player.hp + 12, gameState.player.maxHp);
+        showMessage('Large Potion! (+12 HP)');
+      } else if (itemDef.id === 'heart_piece') {
+        gameState.player.items.push({ ...itemDef });
+        addHeartPiece();
+        showMessage(`Heart Piece! (${saveData.heartPieces}/4)`);
+      } else if (itemDef.id === 'heart_container') {
+        if (gameState.player.maxHp < MAX_HEARTS * 2) {
+          gameState.player.maxHp += 2;
+          gameState.player.hp = gameState.player.maxHp;
+          showMessage('Heart Container! Max HP increased!');
+        }
+      } else if (itemDef.id === 'arrows') {
+        gameState.player.arrows += (loot.count || 10);
+        showMessage(`+${loot.count || 10} Arrows!`);
+      } else if (itemDef.id === 'bombs') {
+        gameState.player.bombs += (loot.count || 10);
+        showMessage(`+${loot.count || 10} Bombs!`);
+      } else if (itemDef.id === 'key') {
+        gameState.player.keys += (loot.count || 1);
+        showMessage(`+${loot.count || 1} Key!`);
+      } else if (itemDef.id === 'bow') {
+        if (!gameState.player.weapons.find(w => w.name === 'Bow')) {
+          const bowDef = WEAPONS.find(w => w.name === 'Bow');
+          if (bowDef) {
+            gameState.player.weapons.push({ ...bowDef });
+            addWeapon('Bow');
+            showMessage('Got Bow!');
+          }
+        }
+        gameState.player.arrows += (loot.count || 10);
+        showMessage(`+${loot.count || 10} Arrows!`);
+      } else {
+        gameState.player.items.push({ ...itemDef, count: loot.count || 1 });
+        showMessage(`Got ${itemDef.name}!`);
+      }
+    }
+  }
+
+  if (loot.type === 'upgrade') {
+    if (loot.name === 'sword_upgrade' && gameState.player.activeWeapon) {
+      gameState.player.activeWeapon.damage += 1;
+      showMessage('Sword upgraded! (+1 damage)');
+    }
+  }
+
+  saveProgress();
+}
+
+function collectFloorItem(item) {
+  item.collected = true;
+  const itemDef = ITEMS.find(i => i.id === item.id);
+  if (!itemDef) return;
+
+  spawnParticles(item.x * TILE + TILE / 2, item.y * TILE + TILE / 2, itemDef.color || '#FFD700', 5);
+
+  if (itemDef.type === 'potion') {
+    gameState.player.hp = Math.min(gameState.player.hp + (itemDef.healAmount || 4), gameState.player.maxHp);
+    showMessage(`${itemDef.name}! (+${itemDef.healAmount} HP)`);
+  } else if (itemDef.id === 'heart_piece') {
+    addHeartPiece();
+    showMessage(`Heart Piece! (${saveData.heartPieces}/4)`);
+  } else if (itemDef.id === 'arrows') {
+    gameState.player.arrows += (item.count || 5);
+    showMessage(`+${item.count || 5} Arrows!`);
+  } else if (itemDef.id === 'bombs') {
+    gameState.player.bombs += (item.count || 5);
+    showMessage(`+${item.count || 5} Bombs!`);
+  } else if (itemDef.id === 'key') {
+    gameState.player.keys++;
+    showMessage('+1 Key!');
+  } else {
+    gameState.player.items.push({ ...itemDef });
+    showMessage(`Got ${itemDef.name}!`);
+  }
+}
+
+function useItem(itemIdx) {
+  if (!gameState.player.items[itemIdx]) return;
+  const item = gameState.player.items[itemIdx];
+  const def = ITEMS.find(i => i.id === item.id);
+  if (!def || def.type !== 'consumable') return;
+
+  if (def.id.startsWith('potion')) {
+    gameState.player.hp = Math.min(gameState.player.hp + (def.healAmount || 4), gameState.player.maxHp);
+    showMessage(`Used ${def.name}! (+${def.healAmount} HP)`);
+    spawnParticles(gameState.player.x * TILE + TILE / 2, gameState.player.y * TILE + TILE / 2, '#00FF00', 8);
+  } else {
+    showMessage(`Can't use ${def.name} here`);
+    return;
+  }
+
+  item.count = (item.count || 1) - 1;
+  if (item.count <= 0) {
+    gameState.player.items.splice(itemIdx, 1);
+  }
+}
+
+function switchWeapon() {
+  if (gameState.player.weapons.length <= 1) return;
+  const currentIdx = gameState.player.weapons.findIndex(w => w === gameState.player.activeWeapon);
+  const nextIdx = (currentIdx + 1) % gameState.player.weapons.length;
+  gameState.player.activeWeapon = gameState.player.weapons[nextIdx];
+  showMessage(`Switched to ${gameState.player.activeWeapon.name}`);
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { openChest, collectFloorItem, useItem, switchWeapon };
+}
\ No newline at end of file
diff --git a/src/game/movement.js b/src/game/movement.js
new file mode 100644
index 0000000..8ac65a1
--- /dev/null
+++ b/src/game/movement.js
@@ -0,0 +1,239 @@
+'use strict';
+
+// === PLAYER MOVEMENT ===
+
+function tryMove(dx, dy) {
+  if (gameState.player.invincibleTimer > 0 && gameState.player.invincibleTimer < 1000) return;
+
+  const px = gameState.player.x;
+  const py = gameState.player.y;
+  const nx = px + dx;
+  const ny = py + dy;
+
+  if (dx === 0 && dy === 0) return;
+
+  // Update facing direction
+  if (dy === 1 && gameState.player.dir !== 0) gameState.player.dir = 0;
+  else if (dy === -1 && gameState.player.dir !== 1) gameState.player.dir = 1;
+  else if (dx === -1 && gameState.player.dir !== 2) gameState.player.dir = 2;
+  else if (dx === 1 && gameState.player.dir !== 3) gameState.player.dir = 3;
+
+  if (!inBounds(nx, ny)) return;
+
+  // Check exit before wall check
+  if (gameState.exit && gameState.exit.x === nx && gameState.exit.y === ny) {
+    tryExit();
+    return;
+  }
+
+  // Check walls
+  if (isWall(gameState.layout, nx, ny)) return;
+
+  // Check lava/water (not passable without item)
+  if (gameState.layout[ny][nx] === TILE_TYPES.LAVA) return;
+  if (gameState.layout[ny][nx] === TILE_TYPES.WATER) {
+    if (!gameState.player.items.find(i => i.id === 'flippers' || i.id === 'power_boomerang')) return;
+  }
+
+  // Check traps
+  const trap = gameState.traps.find(t => t.x === nx && t.y === ny && !t.triggered);
+  if (trap) {
+    trap.triggered = true;
+    if (!gameState.player.invincible) {
+      gameState.player.hp -= trap.damage;
+      gameState.player.hitTimer = HIT_FLASH;
+      showMessage(`Trap! (-${trap.damage} HP)`);
+    }
+    spawnParticles(nx * TILE + TILE / 2, ny * TILE + TILE / 2, trap.color || '#FF0000', 8);
+  }
+
+  // Push rocks
+  const rock = gameState.rocks.find(r => r.x === nx && r.y === ny);
+  if (rock) {
+    const rnx = nx + dx;
+    const rny = ny + dy;
+    if (!inBounds(rnx, rny)) return;
+    if (isWall(gameState.layout, rnx, rny)) return;
+    if (gameState.rocks.find(r => r.x === rnx && r.y === rny)) return;
+    if (gameState.enemies.find(e => e.x === rnx && e.y === rny)) return;
+    if (gameState.exit && gameState.exit.x === rnx && gameState.exit.y === rny) return;
+    if (gameState.chests.find(c => c.x === rnx && c.y === rny)) return;
+    if (gameState.layout[rny][rnx] === TILE_TYPES.LAVA) return;
+    rock.x = rnx;
+    rock.y = rny;
+    spawnParticles(rnx * TILE + TILE / 2, rny * TILE + TILE / 2, COLORS.rock, 3);
+  }
+
+  // Check enemies (can't walk through)
+  if (gameState.enemies.find(e => e.x === nx && e.y === ny)) return;
+  if (gameState.currentBoss && gameState.currentBoss.x === nx && gameState.currentBoss.y === ny) return;
+
+  // Move player
+  gameState.player.x = nx;
+  gameState.player.y = ny;
+
+  // Check chests
+  const chest = gameState.chests.find(c => c.x === nx && c.y === ny && !c.opened);
+  if (chest) {
+    openChest(chest);
+    return;
+  }
+
+  // Check floor items
+  const floorItem = gameState.floorItems.find(i => i.x === nx && i.y === ny && !i.collected);
+  if (floorItem) {
+    collectFloorItem(floorItem);
+  }
+
+  // Check switches
+  const sw = gameState.switches.find(s => s.x === nx && s.y === ny && !s.activated);
+  if (sw) {
+    sw.activated = true;
+    showMessage(sw.message || 'Switch activated!');
+    spawnParticles(nx * TILE + TILE / 2, ny * TILE + TILE / 2, '#FFD700', 6);
+    if (sw.targetDoor) {
+      const door = gameState.doors.find(d => d.id === sw.targetDoor);
+      if (door) {
+        door.opened = !door.opened;
+        showMessage(door.opened ? 'Door opened!' : 'Door closed!');
+      }
+    }
+    if (sw.openExit) {
+      gameState.exitOpen = true;
+      showMessage('The exit has opened!');
+    }
+  }
+
+  // Check levers
+  const lever = gameState.levers.find(l => l.x === nx && l.y === ny && !l.activated);
+  if (lever) {
+    lever.activated = true;
+    showMessage(lever.message || 'Lever pulled!');
+    spawnParticles(nx * TILE + TILE / 2, ny * TILE + TILE / 2, COLORS.lever, 6);
+    if (lever.effect === 'open_exit') {
+      gameState.exitOpen = true;
+      showMessage('The exit has opened!');
+    }
+    if (lever.effect === 'drop_item') {
+      gameState.player.items.push({ ...lever.item });
+      showMessage(`Got ${lever.item.name}!`);
+    }
+    if (lever.effect === 'remove_wall') {
+      for (const [wx, wy] of lever.wallsToRemove) {
+        if (inBounds(wx, wy)) gameState.layout[wy][wx] = TILE_TYPES.FLOOR;
+      }
+    }
+  }
+
+  // Check doors
+  const door = gameState.doors.find(d => d.x === nx && d.y === ny);
+  if (door && !door.opened) {
+    if (door.requiredKey && gameState.player.keys > 0) {
+      gameState.player.keys--;
+      door.opened = true;
+      showMessage('Door unlocked!');
+    } else if (door.requiredKey) {
+      showMessage('Need a key!');
+    } else {
+      door.opened = true;
+    }
+  }
+
+  // Check soft walls (breakable)
+  if (isSoftWall(gameState.layout, nx, ny)) {
+    const weapon = gameState.player.activeWeapon;
+    if (weapon && (weapon.canBreakWalls || weapon.name === 'bomb' || weapon.name === 'hammer')) {
+      gameState.layout[ny][nx] = TILE_TYPES.FLOOR;
+      spawnParticles(nx * TILE + TILE / 2, ny * TILE + TILE / 2, COLORS.softwall, 6);
+      showMessage('Wall destroyed!');
+    } else {
+      showMessage('Need bombs or hammer!');
+    }
+    return;
+  }
+
+  // Check puzzle
+  checkPuzzle();
+}
+
+function tryInteract() {
+  const px = gameState.player.x;
+  const py = gameState.player.y;
+  const dir = DIRS[gameState.player.dir];
+  const tx = px + dir.x;
+  const ty = py + dir.y;
+
+  // Try doors in facing direction
+  const door = gameState.doors.find(d => d.x === tx && d.y === ty && !d.opened);
+  if (door) {
+    if (door.requiredKey && gameState.player.keys > 0) {
+      gameState.player.keys--;
+      door.opened = true;
+      showMessage('Door unlocked!');
+    } else if (door.requiredKey) {
+      showMessage('Need a key!');
+    } else {
+      door.opened = true;
+      showMessage('Door opened!');
+    }
+    return;
+  }
+
+  // Try chests in facing direction
+  const chest = gameState.chests.find(c => c.x === tx && c.y === ty && !c.opened);
+  if (chest) {
+    openChest(chest);
+    return;
+  }
+}
+
+function tryExit() {
+  if (!gameState.exit) return;
+
+  if (!gameState.exitOpen) {
+    showMessage('The door is locked!');
+    return;
+  }
+
+  // Check if this is the last room
+  if (gameState.currentRoomIdx >= (gameState.dungeonRooms ? gameState.dungeonRooms.length - 1 : 0)) {
+    completeDungeon();
+    return;
+  }
+
+  // Move to next room
+  gameState.currentRoomIdx++;
+  loadDungeonRoom(gameState.currentDungeon, gameState.currentRoomIdx);
+}
+
+function completeDungeon() {
+  const dungeon = DUNGEONS[gameState.currentDungeon];
+  showMessage(`${dungeon.name} cleared!`);
+
+  // Save progress
+  markDungeonComplete(gameState.currentDungeon);
+  addStats(gameState.roomsCleared, gameState.enemiesDefeated);
+  gameState.dungeonsCompleted++;
+  saveProgress();
+
+  // Check if all dungeons completed
+  if (gameState.currentDungeon >= DUNGEONS.length - 1) {
+    switchScreen(SCREEN_GAME_COMPLETE);
+  } else {
+    switchScreen(SCREEN_DUNGEON_COMPLETE);
+  }
+}
+
+function checkPuzzle() {
+  if (gameState.targets.length === 0) return;
+  const allSolved = gameState.targets.every(t => gameState.rocks.some(r => r.x === t.x && r.y === t.y));
+  if (allSolved) {
+    gameState.exitOpen = true;
+    showMessage('Puzzle solved! The door has opened!');
+    spawnParticles(gameState.exit.x * TILE + TILE / 2, gameState.exit.y * TILE + TILE / 2, '#FFD700', 12);
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { tryMove, tryInteract, tryExit, completeDungeon, checkPuzzle };
+}
\ No newline at end of file
diff --git a/src/game/state.js b/src/game/state.js
new file mode 100644
index 0000000..fa8a62d
--- /dev/null
+++ b/src/game/state.js
@@ -0,0 +1,146 @@
+'use strict';
+
+// === GAME STATE ===
+
+let gameState;
+
+function initGameState() {
+  gameState = window.gameState = {
+    // Screen/dungeon state
+    currentDungeon: null,
+    currentRoomIdx: 0,
+    dungeonRooms: null,
+    currentRoom: null,
+
+    // Player
+    player: {
+      x: 0, y: 0,
+      hp: 12, maxHp: 12,
+      dir: 0, // 0=down, 1=up, 2=left, 3=right
+      moveTimer: 0,
+      attackTimer: 0,
+      attackAnim: 0,
+      hitTimer: 0,
+      invincibleTimer: 0,
+      invincible: false,
+      weapons: [],
+      activeWeapon: null,
+      items: [],
+      bombs: 0,
+      arrows: 0,
+      keys: 0,
+    },
+
+    // Room state
+    layout: null,
+    rocks: [],
+    targets: [],
+    chests: [],
+    enemies: [],
+    exit: null,
+    exitOpen: false,
+    torches: [],
+    doors: [],
+    levers: [],
+    switches: [],
+    traps: [],
+    softwalls: [],
+    currentBoss: null,
+    floorItems: [],
+
+    // Messages
+    message: '',
+    messageTimer: 0,
+
+    // Particles
+    particles: [],
+
+    // Stats
+    roomsCleared: 0,
+    enemiesDefeated: 0,
+    dungeonsCompleted: 0,
+  };
+}
+
+function resetPlayer() {
+  gameState.player.hp = gameState.player.maxHp;
+  gameState.player.x = 0;
+  gameState.player.y = 0;
+  gameState.player.dir = 0;
+  gameState.player.moveTimer = 0;
+  gameState.player.attackTimer = 0;
+  gameState.player.attackAnim = 0;
+  gameState.player.hitTimer = 0;
+  gameState.player.invincibleTimer = 1000;
+}
+
+function showMessage(text) {
+  gameState.message = text;
+  gameState.messageTimer = MESSAGE_DURATION;
+}
+
+// === ROOM LOADING ===
+
+function loadDungeonRoom(dungeonIdx, roomIdx) {
+  const rooms = gameState.dungeonRooms;
+  if (!rooms || roomIdx >= rooms.length) return;
+
+  gameState.currentDungeon = dungeonIdx;
+  gameState.currentRoomIdx = roomIdx;
+  const room = rooms[roomIdx];
+
+  // BSP generator produces room.tiles; legacy generators produce room.layout
+  gameState.layout = room.layout ? cloneLayout(room.layout) : (room.tiles ? cloneLayout(room.tiles) : createEmptyLayout());
+
+  // Compute player start position
+  if (room.playerStart) {
+    gameState.player.x = room.playerStart.x;
+    gameState.player.y = room.playerStart.y;
+  } else {
+    // Default: entrance starts at left-center, boss at left-center, others at center
+    if (room.type === 'entrance') {
+      gameState.player.x = 2;
+      gameState.player.y = Math.floor(ROWS / 2);
+    } else if (room.type === 'boss') {
+      gameState.player.x = 2;
+      gameState.player.y = Math.floor(ROWS / 2);
+    } else {
+      gameState.player.x = Math.floor(COLS / 2);
+      gameState.player.y = Math.floor(ROWS / 2);
+    }
+  }
+
+  gameState.rocks = room.rocks ? room.rocks.map(r => ({ ...r })) : [];
+  gameState.targets = room.targets ? room.targets.map(t => ({ ...t })) : [];
+  gameState.chests = room.chests ? room.chests.map(c => ({ ...c, opened: false })) : [];
+  gameState.enemies = room.enemies ? room.enemies.map(e => ({
+    ...e,
+    moveTimer: ENEMY_MOVE_INTERVAL,
+    attackTimer: ENEMY_ATTACK_INTERVAL,
+    hitTimer: 0,
+    projectileTimer: 0,
+    specialTimer: 0,
+    phase: 0,
+    stunned: false,
+    frozen: false,
+  })) : [];
+  gameState.exit = room.exit ? { ...room.exit } : (room.hasBoss ? { x: COLS - 1, y: Math.floor(ROWS / 2), dir: 3 } : null);
+  gameState.exitOpen = room.exitOpen || false;
+  gameState.torches = room.torches ? room.torches.map(t => [...t]) : [];
+  gameState.doors = room.doors ? room.doors.map(d => ({ ...d })) : [];
+  gameState.levers = room.levers ? room.levers.map(l => ({ ...l })) : [];
+  gameState.switches = room.switches ? room.switches.map(s => ({ ...s, activated: false })) : [];
+  gameState.traps = room.traps ? room.traps.map(t => ({ ...t, triggered: false })) : [];
+  gameState.softwalls = room.softwalls ? room.softwalls.map(s => [...s]) : [];
+  gameState.currentRoom = room;
+  gameState.currentBoss = room.boss ? { ...room.boss, moveTimer: ENEMY_MOVE_INTERVAL, attackTimer: ENEMY_ATTACK_INTERVAL, hitTimer: 0, phase: 0, rng: createRNG((gameState.currentDungeon + 1) * 1000 + roomIdx) } : null;
+  gameState.floorItems = room.floorItems ? room.floorItems.map(i => ({ ...i, collected: false })) : [];
+  gameState.particles = [];
+
+  gameState.message = room.name || `Room ${roomIdx + 1}`;
+  gameState.messageTimer = MESSAGE_DURATION;
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { initGameState, loadDungeonRoom, showMessage, resetPlayer };
+}
\ No newline at end of file
diff --git a/src/game/transitions.js b/src/game/transitions.js
new file mode 100644
index 0000000..aa52efd
--- /dev/null
+++ b/src/game/transitions.js
@@ -0,0 +1,34 @@
+'use strict';
+
+// === SCREEN TRANSITIONS ===
+
+// Transitions are handled in app.js updateTransition()
+// This file provides helper functions for transition effects
+
+function startTransition(target) {
+  if (transitioning) return;
+  transitioning = true;
+  targetScreen = target;
+  transitionProgress = 1;
+}
+
+// Screen fade effect
+function getTransitionAlpha() {
+  if (!transitioning) return 0;
+  return 1 - transitionProgress;
+}
+
+// Check if transition is complete
+function isTransitionComplete() {
+  return !transitioning && transitionProgress <= 0;
+}
+
+// Room transition message
+function onRoomTransition(roomName) {
+  gameState.message = roomName;
+  gameState.messageTimer = MESSAGE_DURATION;
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { startTransition, getTransitionAlpha, isTransitionComplete };
+}
\ No newline at end of file
diff --git a/src/generator/dungeon.js b/src/generator/dungeon.js
new file mode 100644
index 0000000..55d8ade
--- /dev/null
+++ b/src/generator/dungeon.js
@@ -0,0 +1,287 @@
+'use strict';
+
+// Browser: use globals directly; Node: use require
+const _C3 = typeof require !== 'undefined' ? require('../core/constants') : { COLS, ROWS, TILE_TYPES };
+const RNG = typeof require !== 'undefined' ? require('../core/rng') : { createRNG };
+const Puzzles = typeof require !== 'undefined' ? require('./puzzles') : { generatePuzzles };
+const Placement = typeof require !== 'undefined' ? require('./placement') : { generatePlacement };
+
+// Abstract grid for BSP layout — scales with room count
+function getLayoutSize(targetCount) {
+  const area = Math.ceil(targetCount * 36 * 1.5);
+  const w = Math.ceil(Math.sqrt(area * 1.33));
+  const h = Math.ceil(area / w);
+  return { cols: Math.ceil(w / 4) * 4, rows: Math.ceil(h / 4) * 4 };
+}
+
+function generateDungeon(dungeon) {
+  const rng = RNG.createRNG(dungeon.seed);
+  const targetCount = dungeon.roomCount;
+
+  const rooms = generateBSPLayout(targetCount, rng);
+  if (rooms.length === 0) return [];
+
+  connectRooms(rooms, rng);
+  ensureConnectivity(rooms, rng);
+  assignRoomTypes(rooms, dungeon, rng);
+
+  // Each room gets its own COLS x ROWS tile grid for rendering
+  for (const room of rooms) {
+    room.tiles = createRoomTileGrid(room, rng);
+    room.decorations = generateDecorations(room, rng);
+  }
+
+  // Generate puzzles (modifies room tiles and puzzles arrays)
+  Puzzles.generatePuzzles(rooms, dungeon, rng);
+
+  // Place enemies, items, bosses (needs tile grid from above)
+  Placement.generatePlacement(rooms, dungeon, rng);
+
+  return rooms;
+}
+
+function generateBSPLayout(targetCount, rng) {
+  const layout = getLayoutSize(targetCount);
+  const maxDepth = Math.max(6, Math.ceil(Math.log2(targetCount)) + 2);
+  const root = createBSP(0, 0, layout.cols, layout.rows, 0, 0, targetCount, maxDepth, rng);
+
+  const leaves = [];
+  collectLeaves(root, leaves);
+
+  // Sort by y then x for consistent ordering
+  leaves.sort((a, b) => (a.cy - b.cy) * layout.cols + (a.cx - b.cx));
+
+  const rooms = [];
+  for (const leaf of leaves) {
+    rooms.push({
+      id: rooms.length,
+      x: leaf.cx,
+      y: leaf.cy,
+      width: leaf.width,
+      height: leaf.height,
+      type: 'normal',
+      connections: [],
+      enemies: [],
+      items: [],
+      puzzles: [],
+      decorations: [],
+      hasBoss: false,
+      hasExit: false,
+      hasEntrance: false,
+      tiles: [],
+    });
+  }
+
+  return rooms;
+}
+
+function createBSP(x, y, width, height, depth, roomCount, targetCount, maxDepth, rng) {
+  const node = { x, y, width, height, depth, cx: x + Math.floor(width / 2), cy: y + Math.floor(height / 2), left: null, right: null };
+
+  if (roomCount >= targetCount) return node;
+  if (depth >= maxDepth) return node;
+
+  const minRegion = 5;
+  const minSplit = minRegion * 2;
+
+  const canH = height >= minSplit;
+  const canV = width >= minSplit;
+  if (!canH && !canV) return node;
+
+  let dir;
+  if (canH && canV) {
+    dir = width > height ? 'v' : (height > width ? 'h' : (rng() < 0.5 ? 'h' : 'v'));
+  } else {
+    dir = canH ? 'h' : 'v';
+  }
+
+  let splitPos;
+  if (dir === 'h') {
+    const lo = Math.max(minRegion, Math.ceil(height * 0.35));
+    const hi = Math.min(height - minRegion, Math.floor(height * 0.65));
+    if (lo > hi) return node;
+    splitPos = Math.floor(rng() * (hi - lo + 1)) + lo;
+  } else {
+    const lo = Math.max(minRegion, Math.ceil(width * 0.35));
+    const hi = Math.min(width - minRegion, Math.floor(width * 0.65));
+    if (lo > hi) return node;
+    splitPos = Math.floor(rng() * (hi - lo + 1)) + lo;
+  }
+
+  if (dir === 'h') {
+    node.left = createBSP(x, y, width, splitPos, depth + 1, roomCount, targetCount, maxDepth, rng);
+    const lc = countLeaves(node.left);
+    node.right = createBSP(x, y + splitPos, width, height - splitPos, depth + 1, roomCount + lc, targetCount, maxDepth, rng);
+  } else {
+    node.left = createBSP(x, y, splitPos, height, depth + 1, roomCount, targetCount, maxDepth, rng);
+    const lc = countLeaves(node.left);
+    node.right = createBSP(x + splitPos, y, width - splitPos, height, depth + 1, roomCount + lc, targetCount, maxDepth, rng);
+  }
+
+  return node;
+}
+
+function countLeaves(node) {
+  if (!node.left && !node.right) return 1;
+  let c = 0;
+  if (node.left) c += countLeaves(node.left);
+  if (node.right) c += countLeaves(node.right);
+  return c;
+}
+
+function collectLeaves(node, leaves) {
+  if (!node.left && !node.right) {
+    leaves.push({ cx: node.cx, cy: node.cy, width: node.width, height: node.height });
+    return;
+  }
+  if (node.left) collectLeaves(node.left, leaves);
+  if (node.right) collectLeaves(node.right, leaves);
+}
+
+// Connect rooms using MST (Prim's algorithm)
+function connectRooms(rooms, rng) {
+  if (rooms.length < 2) return;
+
+  const connected = new Set([0]);
+  const unconnected = new Set(rooms.slice(1).map(r => r.id));
+
+  while (unconnected.size > 0) {
+    let bestDist = Infinity, bestFrom = -1, bestTo = -1;
+    for (const fromId of connected) {
+      for (const toId of unconnected) {
+        const d = Math.abs(rooms[fromId].x - rooms[toId].x) + Math.abs(rooms[fromId].y - rooms[toId].y);
+        if (d < bestDist) { bestDist = d; bestFrom = fromId; bestTo = toId; }
+      }
+    }
+    if (bestTo < 0) break;
+    rooms[bestFrom].connections.push(bestTo);
+    rooms[bestTo].connections.push(bestFrom);
+    connected.add(bestTo);
+    unconnected.delete(bestTo);
+  }
+
+  // Extra connections for non-linear paths
+  for (let i = 0; i < rooms.length; i++) {
+    for (let j = i + 1; j < rooms.length; j++) {
+      if (rooms[i].connections.includes(j) || rooms[j].connections.includes(i)) continue;
+      const d = Math.abs(rooms[i].x - rooms[j].x) + Math.abs(rooms[i].y - rooms[j].y);
+      if (d < 20 && rng() < 0.25) {
+        rooms[i].connections.push(j);
+        rooms[j].connections.push(i);
+      }
+    }
+  }
+}
+
+// BFS from room 0, connect unreachable rooms to nearest connected room
+function ensureConnectivity(rooms, rng) {
+  if (rooms.length < 2) return;
+
+  const visited = new Set([0]);
+  const queue = [0];
+  while (queue.length > 0) {
+    const rid = queue.shift();
+    for (const cid of rooms[rid].connections) {
+      if (!visited.has(cid)) { visited.add(cid); queue.push(cid); }
+    }
+  }
+
+  for (const room of rooms) {
+    if (visited.has(room.id)) continue;
+    let nearest = null, nearestDist = Infinity;
+    for (const other of rooms) {
+      if (!visited.has(other.id)) continue;
+      const d = Math.abs(room.x - other.x) + Math.abs(room.y - other.y);
+      if (d < nearestDist) { nearestDist = d; nearest = other; }
+    }
+    if (nearest) {
+      room.connections.push(nearest.id);
+      nearest.connections.push(room.id);
+      visited.add(room.id);
+      const q2 = [room.id];
+      while (q2.length > 0) {
+        const rid = q2.shift();
+        for (const cid of rooms[rid].connections) {
+          if (!visited.has(cid)) { visited.add(cid); q2.push(cid); }
+        }
+      }
+    }
+  }
+}
+
+function assignRoomTypes(rooms, dungeon, rng) {
+  if (rooms.length === 0) return;
+
+  rooms[0].type = 'entrance';
+  rooms[0].hasEntrance = true;
+
+  const last = rooms[rooms.length - 1];
+  last.type = 'boss';
+  last.hasBoss = true;
+  last.bossId = dungeon.id;
+
+  // Treasure (~20%)
+  const tc = Math.max(1, Math.floor(rooms.length * 0.2));
+  const tcands = rooms.filter((r, i) => i > 0 && i < rooms.length - 1 && r.type === 'normal');
+  shuffleRng(tcands, rng);
+  for (let i = 0; i < Math.min(tc, tcands.length); i++) tcands[i].type = 'treasure';
+
+  // Puzzle (~15%)
+  const pc = Math.max(1, Math.floor(rooms.length * 0.15));
+  const pcands = rooms.filter(r => r.type === 'normal');
+  shuffleRng(pcands, rng);
+  for (let i = 0; i < Math.min(pc, pcands.length); i++) pcands[i].type = 'puzzle';
+
+  // Trap (~10%)
+  const trapc = Math.max(0, Math.floor(rooms.length * 0.1));
+  const trapcands = rooms.filter(r => r.type === 'normal');
+  shuffleRng(trapcands, rng);
+  for (let i = 0; i < Math.min(trapc, trapcands.length); i++) trapcands[i].type = 'trap';
+}
+
+function shuffleRng(arr, rng) {
+  for (let i = arr.length - 1; i > 0; i--) {
+    const j = Math.floor(rng() * (i + 1));
+    [arr[i], arr[j]] = [arr[j], arr[i]];
+  }
+}
+
+function createRoomTileGrid(room, rng) {
+  const tiles = [];
+  for (let y = 0; y < _C3.ROWS; y++) {
+    tiles[y] = [];
+    for (let x = 0; x < _C3.COLS; x++) {
+      if (y === 0 || y === _C3.ROWS - 1 || x === 0 || x === _C3.COLS - 1) tiles[y][x] = _C3.TILE_TYPES.WALL;
+      else tiles[y][x] = _C3.TILE_TYPES.FLOOR;
+    }
+  }
+
+  // Doors on walls based on connections
+  for (const connId of room.connections) {
+    const side = Math.floor(rng() * 4);
+    let dx, dy;
+    if (side === 0) { dx = Math.floor(rng() * (_C3.COLS - 2)) + 1; dy = 0; }
+    else if (side === 1) { dx = Math.floor(rng() * (_C3.COLS - 2)) + 1; dy = _C3.ROWS - 1; }
+    else if (side === 2) { dx = 0; dy = Math.floor(rng() * (_C3.ROWS - 2)) + 1; }
+    else { dx = _C3.COLS - 1; dy = Math.floor(rng() * (_C3.ROWS - 2)) + 1; }
+    if (tiles[dy][dx] === _C3.TILE_TYPES.WALL) tiles[dy][dx] = _C3.TILE_TYPES.DOOR;
+  }
+
+  if (room.hasBoss) tiles[Math.floor(_C3.ROWS / 2)][_C3.COLS - 1] = _C3.TILE_TYPES.EXIT;
+  if (room.hasEntrance) tiles[Math.floor(_C3.ROWS / 2)][_C3.COLS - 1] = _C3.TILE_TYPES.DOOR;
+
+  return tiles;
+}
+
+function generateDecorations(room, rng) {
+  const decorations = [];
+  if (rng() < 0.7) decorations.push({ type: 'torch', x: 2, y: 2, lit: true });
+  if (rng() < 0.5) decorations.push({ type: 'torch', x: _C3.COLS - 3, y: 2, lit: true });
+  if (rng() < 0.5) decorations.push({ type: 'torch', x: 2, y: _C3.ROWS - 3, lit: true });
+  if (rng() < 0.7) decorations.push({ type: 'torch', x: _C3.COLS - 3, y: _C3.ROWS - 3, lit: true });
+  return decorations;
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { generateDungeon };
+}
\ No newline at end of file
diff --git a/src/generator/index.js b/src/generator/index.js
new file mode 100644
index 0000000..288ca80
--- /dev/null
+++ b/src/generator/index.js
@@ -0,0 +1,16 @@
+'use strict';
+
+// Browser: use globals directly; Node: use require
+const DungeonMod = typeof require !== 'undefined' ? require('./dungeon') : { generateDungeon };
+const RoomsMod = typeof require !== 'undefined' ? require('./rooms') : { generateRoomLayout };
+const PuzzlesMod = typeof require !== 'undefined' ? require('./puzzles') : { generatePuzzles };
+const PlacementMod = typeof require !== 'undefined' ? require('./placement') : { generatePlacement };
+
+const generateDungeon = DungeonMod.generateDungeon;
+const generateRoomLayout = RoomsMod.generateRoomLayout;
+const generatePuzzles = PuzzlesMod.generatePuzzles;
+const generatePlacement = PlacementMod.generatePlacement;
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { generateDungeon, generateRoomLayout, generatePuzzles, generatePlacement };
+}
\ No newline at end of file
diff --git a/src/generator/placement.js b/src/generator/placement.js
new file mode 100644
index 0000000..3c0c6fb
--- /dev/null
+++ b/src/generator/placement.js
@@ -0,0 +1,320 @@
+'use strict';
+
+// Browser: use window globals; Node: use require
+const _C2 = typeof require !== 'undefined' ? require('../core/constants') : { TILE_TYPES, ROWS, COLS, DIR_NAMES };
+const _E = typeof require !== 'undefined' ? require('../data/enemies') : { ENEMY_TYPES, getEnemyType };
+const _B = typeof require !== 'undefined' ? require('../data/bosses') : { BOSS_TYPES };
+const _I = typeof require !== 'undefined' ? require('../data/items') : { ITEMS, getItem };
+
+const _DIR_NAMES = _C2.DIR_NAMES;
+
+// Enemy pools by difficulty tier (cumulative)
+const ENEMY_TIERS = {
+  1: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite'],
+  2: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite'],
+  3: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma'],
+  4: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma'],
+  5: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma', 'moblin', 'stalfos', 'goriya', 'armos', 'manhandla'],
+  6: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma', 'moblin', 'stalfos', 'goriya', 'armos', 'manhandla'],
+  7: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma', 'moblin', 'stalfos', 'goriya', 'armos', 'manhandla', 'wizzrobe', 'ironknuckle', 'darknut'],
+  8: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma', 'moblin', 'stalfos', 'goriya', 'armos', 'manhandla', 'wizzrobe', 'ironknuckle', 'darknut'],
+  9: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma', 'moblin', 'stalfos', 'goriya', 'armos', 'manhandla', 'wizzrobe', 'ironknuckle', 'darknut', 'lynel'],
+  10: ['slime', 'keese', 'peahat', 'reedeath', 'bub', 'tektite', 'octorok', 'like', 'leever', 'skullwallma', 'moblin', 'stalfos', 'goriya', 'armos', 'manhandla', 'wizzrobe', 'ironknuckle', 'darknut', 'lynel'],
+};
+
+// Room type -> max enemy count
+const ENEMY_COUNT_BY_TYPE = {
+  normal: 3,
+  treasure: 1,
+  puzzle: 1,
+  trap: 2,
+  boss: 2,
+  entrance: 1,
+  corridor: 0,
+};
+
+function findFloorPosition(room, rng) {
+  const candidates = [];
+  for (let y = 1; y < _C2.ROWS - 1; y++) {
+    for (let x = 1; x < _C2.COLS - 1; x++) {
+      if (room.tiles[y][x] === _C2.TILE_TYPES.FLOOR) {
+        candidates.push({ x, y });
+      }
+    }
+  }
+  if (candidates.length === 0) return null;
+  return candidates[Math.floor(rng() * candidates.length)];
+}
+
+function findFloorPositionExcluding(room, rng, occupied) {
+  const candidates = [];
+  for (let y = 1; y < _C2.ROWS - 1; y++) {
+    for (let x = 1; x < _C2.COLS - 1; x++) {
+      if (room.tiles[y][x] === _C2.TILE_TYPES.FLOOR) {
+        const taken = occupied.some(p => p.x === x && p.y === y);
+        if (!taken) {
+          candidates.push({ x, y });
+        }
+      }
+    }
+  }
+  if (candidates.length === 0) return null;
+  return candidates[Math.floor(rng() * candidates.length)];
+}
+
+function getEnemyPool(difficulty) {
+  const tier = Math.max(1, Math.min(10, difficulty));
+  const pool = ENEMY_TIERS[tier];
+  if (!pool) return ENEMY_TIERS[1];
+  return pool;
+}
+
+function getRupeeType(difficulty, rng) {
+  const r = rng();
+
+  if (difficulty <= 2) {
+    return r < 0.85 ? 'rupee_green' : 'rupee_blue';
+  } else if (difficulty <= 4) {
+    if (r < 0.5) return 'rupee_green';
+    if (r < 0.9) return 'rupee_blue';
+    return 'rupee_red';
+  } else if (difficulty <= 6) {
+    if (r < 0.3) return 'rupee_green';
+    if (r < 0.65) return 'rupee_blue';
+    if (r < 0.95) return 'rupee_red';
+    return 'rupee_yellow';
+  } else {
+    if (r < 0.15) return 'rupee_green';
+    if (r < 0.4) return 'rupee_blue';
+    if (r < 0.75) return 'rupee_red';
+    return 'rupee_yellow';
+  }
+}
+
+function getRandomDirection(rng) {
+  return _DIR_NAMES[Math.floor(rng() * 4)];
+}
+
+function getEnemyCountForRoom(roomType, difficulty, rng) {
+  const maxCount = ENEMY_COUNT_BY_TYPE[roomType] || 0;
+  if (maxCount === 0) return 0;
+
+  const chance = 0.6 + (difficulty / 10) * 0.3;
+  if (rng() < (1 - chance)) return 0;
+
+  return Math.floor(rng() * (maxCount + 1));
+}
+
+function createEnemy(typeId, x, y, rng) {
+  const def = _E.getEnemyType(typeId);
+  if (!def) return null;
+
+  return {
+    id: def.id,
+    x,
+    y,
+    hp: def.hp,
+    maxHp: def.hp,
+    alive: true,
+    behavior: def.behavior,
+    state: 'idle',
+    direction: getRandomDirection(rng),
+    timer: 0,
+    damage: def.damage,
+    defense: def.defense,
+    speed: def.speed,
+    attackRange: def.attackRange,
+  };
+}
+
+function createItem(typeId, x, y, count) {
+  return {
+    id: typeId,
+    x,
+    y,
+    collected: false,
+    count: count || 1,
+  };
+}
+
+function placeEnemies(rooms, dungeon, rng) {
+  const difficulty = dungeon.difficulty || 1;
+  const pool = getEnemyPool(difficulty);
+
+  for (const room of rooms) {
+    if (room.type === 'corridor') continue;
+
+    const count = getEnemyCountForRoom(room.type, difficulty, rng);
+
+    const occupied = [];
+
+    for (let i = 0; i < count; i++) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (!pos) break;
+
+      const typeId = pool[Math.floor(rng() * pool.length)];
+      const enemy = createEnemy(typeId, pos.x, pos.y, rng);
+      if (enemy) {
+        room.enemies.push(enemy);
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+  }
+}
+
+function placeItems(rooms, dungeon, rng) {
+  const difficulty = dungeon.difficulty || 1;
+  const hasBow = dungeon.playerHasBow || false;
+
+  for (const room of rooms) {
+    if (room.type === 'corridor') continue;
+
+    const occupied = room.enemies.map(e => ({ x: e.x, y: e.y }));
+
+    // Rupees: 30% chance per normal room, 0-3 rupees
+    if (room.type === 'normal' || room.type === 'entrance') {
+      if (rng() < 0.3) {
+        const count = 1 + Math.floor(rng() * 3);
+        for (let i = 0; i < count; i++) {
+          const pos = findFloorPositionExcluding(room, rng, occupied);
+          if (!pos) break;
+          const rupeeType = getRupeeType(difficulty, rng);
+          room.items.push(createItem(rupeeType, pos.x, pos.y, 1));
+          occupied.push({ x: pos.x, y: pos.y });
+        }
+      }
+    }
+
+    // Healing potions: 15% chance per room
+    if (rng() < 0.15) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        room.items.push(createItem('healing_potion', pos.x, pos.y, 1));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+
+    // Super potions: 5% chance (difficulty 3+)
+    if (difficulty >= 3 && rng() < 0.05) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        room.items.push(createItem('super_potion', pos.x, pos.y, 1));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+
+    // Magic potions: 3% chance (difficulty 5+)
+    if (difficulty >= 5 && rng() < 0.03) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        room.items.push(createItem('magic_potion', pos.x, pos.y, 1));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+
+    // Arrows: 20% chance if player has bow
+    if (hasBow && rng() < 0.2) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        const arrowCount = 3 + Math.floor(rng() * 5);
+        room.items.push(createItem('arrow', pos.x, pos.y, arrowCount));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+
+    // Bombs: 15% chance per room
+    if (rng() < 0.15) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        const bombCount = 1 + Math.floor(rng() * 4);
+        room.items.push(createItem('bomb', pos.x, pos.y, bombCount));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+
+    // Small keys: placed in treasure rooms or random rooms
+    if (room.type === 'treasure') {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        room.items.push(createItem('small_key', pos.x, pos.y, 1));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    } else if (rng() < 0.08) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        room.items.push(createItem('small_key', pos.x, pos.y, 1));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+
+    // Heart pieces: 2% chance per room (rare)
+    if (rng() < 0.02) {
+      const pos = findFloorPositionExcluding(room, rng, occupied);
+      if (pos) {
+        room.items.push(createItem('heart_piece', pos.x, pos.y, 1));
+        occupied.push({ x: pos.x, y: pos.y });
+      }
+    }
+  }
+}
+
+function placeBoss(bossRoom, bossType, rng) {
+  const def = _B.BOSS_TYPES[bossType];
+  if (!def) return null;
+
+  const x = Math.floor(_C2.COLS / 2);
+  const y = Math.floor(_C2.ROWS / 2);
+
+  const boss = {
+    id: def.id,
+    name: def.name,
+    x,
+    y,
+    hp: def.hp,
+    maxHp: def.hp,
+    damage: def.damage,
+    defense: def.defense,
+    behavior: def.behavior,
+    phases: def.phases ? def.phases.map(p => ({ ...p, attacks: p.attacks.map(a => ({ ...a })) })) : [],
+    alive: true,
+    drops: def.drops ? [...def.drops] : [],
+    currentState: {
+      phase: 0,
+      attackTimer: {},
+      stunned: false,
+      frozen: false,
+    },
+    direction: getRandomDirection(rng),
+    timer: 0,
+    state: 'idle',
+  };
+
+  return boss;
+}
+
+function generatePlacement(rooms, dungeon, rng) {
+  placeEnemies(rooms, dungeon, rng);
+  placeItems(rooms, dungeon, rng);
+
+  // Place boss in the boss room
+  const bossRoom = rooms.find(r => r.type === 'boss');
+  if (bossRoom && dungeon.bossId !== undefined) {
+    const boss = placeBoss(bossRoom, dungeon.bossId, rng);
+    if (boss) {
+      bossRoom.boss = boss;
+      bossRoom.hasBoss = true;
+    }
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = {
+    generatePlacement,
+    placeEnemies,
+    placeItems,
+    placeBoss,
+    findFloorPosition,
+    getEnemyPool,
+    getRupeeType,
+  };
+}
\ No newline at end of file
diff --git a/src/generator/puzzles.js b/src/generator/puzzles.js
new file mode 100644
index 0000000..c2e9f71
--- /dev/null
+++ b/src/generator/puzzles.js
@@ -0,0 +1,420 @@
+'use strict';
+
+// Browser: use window globals; Node: use require
+const _C = typeof require !== 'undefined' ? require('../core/constants') : { TILE_TYPES, ROWS, COLS };
+
+function findFloorPosition(room, rng, exclude) {
+  const candidates = [];
+  for (let y = 1; y < _C.ROWS - 1; y++) {
+    for (let x = 1; x < _C.COLS - 1; x++) {
+      if (room.tiles[y][x] === _C.TILE_TYPES.FLOOR) {
+        if (!exclude || !exclude.some(p => p.x === x && p.y === y)) {
+          candidates.push({ x, y });
+        }
+      }
+    }
+  }
+  if (candidates.length === 0) return null;
+  const idx = Math.floor(rng() * candidates.length);
+  return candidates[idx];
+}
+
+function findWallPosition(room, rng, edge, exclude) {
+  const candidates = [];
+  if (edge === 'bottom') {
+    for (let x = 1; x < _C.COLS - 1; x++) {
+      const y = _C.ROWS - 1;
+      if (room.tiles[y][x] === _C.TILE_TYPES.WALL) {
+        if (!exclude || !exclude.some(p => p.x === x && p.y === y)) {
+          candidates.push({ x, y });
+        }
+      }
+    }
+  } else if (edge === 'top') {
+    for (let x = 1; x < _C.COLS - 1; x++) {
+      const y = 0;
+      if (room.tiles[y][x] === _C.TILE_TYPES.WALL) {
+        if (!exclude || !exclude.some(p => p.x === x && p.y === y)) {
+          candidates.push({ x, y });
+        }
+      }
+    }
+  } else if (edge === 'left') {
+    for (let y = 1; y < _C.ROWS - 1; y++) {
+      const x = 0;
+      if (room.tiles[y][x] === _C.TILE_TYPES.WALL) {
+        if (!exclude || !exclude.some(p => p.x === x && p.y === y)) {
+          candidates.push({ x, y });
+        }
+      }
+    }
+  } else if (edge === 'right') {
+    for (let y = 1; y < _C.ROWS - 1; y++) {
+      const x = _C.COLS - 1;
+      if (room.tiles[y][x] === _C.TILE_TYPES.WALL) {
+        if (!exclude || !exclude.some(p => p.x === x && p.y === y)) {
+          candidates.push({ x, y });
+        }
+      }
+    }
+  }
+  if (candidates.length === 0) return null;
+  const idx = Math.floor(rng() * candidates.length);
+  return candidates[idx];
+}
+
+function generateRockPushPuzzle(room, rng) {
+  const difficulty = room.difficulty || 1;
+  const rockCount = Math.min(3, difficulty);
+  const elements = [];
+  const occupied = [];
+  let solutions = [];
+
+  for (let i = 0; i < rockCount; i++) {
+    let attempts = 0;
+    let rockPos, targetPos;
+
+    while (attempts < 50) {
+      rockPos = findFloorPosition(room, rng, occupied);
+      if (!rockPos) break;
+
+      targetPos = findFloorPosition(room, rng, [...occupied, rockPos]);
+      if (!targetPos) {
+        attempts++;
+        continue;
+      }
+
+      const dx = targetPos.x - rockPos.x;
+      const dy = targetPos.y - rockPos.y;
+      const pushDirX = -Math.sign(dx);
+      const pushDirY = -Math.sign(dy);
+
+      const behindX = rockPos.x + pushDirX;
+      const behindY = rockPos.y + pushDirY;
+
+      if (behindX < 1 || behindX >= _C.COLS - 1 ||
+          behindY < 1 || behindY >= _C.ROWS - 1 ||
+          occupied.some(p => p.x === behindX && p.y === behindY)) {
+        attempts++;
+        continue;
+      }
+
+      if (room.tiles[behindY][behindX] !== _C.TILE_TYPES.FLOOR) {
+        attempts++;
+        continue;
+      }
+
+      room.tiles[rockPos.y][rockPos.x] = _C.TILE_TYPES.ROCK;
+      room.tiles[targetPos.y][targetPos.x] = _C.TILE_TYPES.TARGET;
+
+      const rock = {
+        type: 'rock',
+        x: rockPos.x,
+        y: rockPos.y,
+        pushable: true,
+        requiredPosition: { x: targetPos.x, y: targetPos.y },
+      };
+      const target = {
+        type: 'target',
+        x: targetPos.x,
+        y: targetPos.y,
+        active: false,
+      };
+
+      elements.push(rock);
+      elements.push(target);
+
+      occupied.push(rockPos);
+      occupied.push(targetPos);
+      occupied.push({ x: behindX, y: behindY });
+
+      solutions.push(`Push rock at (${rockPos.x}, ${rockPos.y}) to (${targetPos.x}, ${targetPos.y})`);
+      break;
+    }
+  }
+
+  return {
+    type: 'rock_push',
+    elements,
+    solution: solutions.join('. '),
+    solved: false,
+    reward: elements.length >= 4 ? 'heart_piece' : 'small_key',
+  };
+}
+
+function generateLeverPuzzle(room, rng) {
+  const elements = [];
+  const occupied = [];
+
+  const leverPos = findFloorPosition(room, rng, occupied);
+  if (!leverPos) return null;
+
+  occupied.push(leverPos);
+  room.tiles[leverPos.y][leverPos.x] = _C.TILE_TYPES.LEVER;
+
+  elements.push({
+    type: 'lever',
+    x: leverPos.x,
+    y: leverPos.y,
+    activated: false,
+  });
+
+  const targetPos = findFloorPosition(room, rng, occupied);
+  if (!targetPos) return null;
+
+  occupied.push(targetPos);
+  room.tiles[targetPos.y][targetPos.x] = _C.TILE_TYPES.TARGET;
+
+  const targetEffect = rng() < 0.6 ? 'softwall' : 'door';
+
+  elements.push({
+    type: 'target',
+    x: targetPos.x,
+    y: targetPos.y,
+    active: false,
+    effect: targetEffect,
+  });
+
+  if (targetEffect === 'softwall') {
+    let softwallPos = null;
+    for (let attempts = 0; attempts < 30; attempts++) {
+      softwallPos = findFloorPosition(room, rng, occupied);
+      if (!softwallPos) break;
+      if (room.tiles[softwallPos.y][softwallPos.x] === _C.TILE_TYPES.FLOOR) {
+        break;
+      }
+    }
+    if (softwallPos) {
+      room.tiles[softwallPos.y][softwallPos.x] = _C.TILE_TYPES.SOFTWALL;
+      occupied.push(softwallPos);
+      elements.push({
+        type: 'softwall',
+        x: softwallPos.x,
+        y: softwallPos.y,
+        breakable: true,
+        linkedToLever: true,
+      });
+    }
+  } else if (targetEffect === 'door') {
+    const edges = ['top', 'bottom', 'left', 'right'];
+    const edge = edges[Math.floor(rng() * edges.length)];
+    const doorPos = findWallPosition(room, rng, edge, occupied);
+
+    if (doorPos) {
+      room.tiles[doorPos.y][doorPos.x] = _C.TILE_TYPES.DOOR;
+      occupied.push(doorPos);
+      elements.push({
+        type: 'door',
+        x: doorPos.x,
+        y: doorPos.y,
+        locked: true,
+        keyRequired: 'small_key',
+        linkedToLever: true,
+      });
+    }
+  }
+
+  return {
+    type: 'lever',
+    elements,
+    solution: `Activate lever at (${leverPos.x}, ${leverPos.y}) to ${targetEffect === 'softwall' ? 'remove softwall' : 'unlock door'}`,
+    solved: false,
+    reward: 'small_key',
+  };
+}
+
+function generateKeyDoorPuzzle(room, rng) {
+  const elements = [];
+  const occupied = [];
+
+  const edges = ['top', 'bottom', 'left', 'right'];
+  const edge = edges[Math.floor(rng() * edges.length)];
+  const doorPos = findWallPosition(room, rng, edge, occupied);
+
+  if (!doorPos) return null;
+
+  room.tiles[doorPos.y][doorPos.x] = _C.TILE_TYPES.DOOR;
+  occupied.push(doorPos);
+
+  elements.push({
+    type: 'door',
+    x: doorPos.x,
+    y: doorPos.y,
+    locked: true,
+    keyRequired: 'small_key',
+  });
+
+  const keyRoom = {
+    type: 'key',
+    x: -1,
+    y: -1,
+    keyType: 'small_key',
+    collected: false,
+    roomId: -1,
+  };
+  elements.push(keyRoom);
+
+  return {
+    type: 'key_door',
+    elements,
+    solution: `Find small key in another room, then unlock door at (${doorPos.x}, ${doorPos.y})`,
+    solved: false,
+    reward: 'chest_unlock',
+    keyRoomId: keyRoom.roomId,
+  };
+}
+
+function generateSwitchPuzzle(room, rng) {
+  const elements = [];
+  const occupied = [];
+
+  const switchPos = findFloorPosition(room, rng, occupied);
+  if (!switchPos) return null;
+
+  occupied.push(switchPos);
+  room.tiles[switchPos.y][switchPos.x] = _C.TILE_TYPES.SWITCH;
+
+  elements.push({
+    type: 'switch',
+    x: switchPos.x,
+    y: switchPos.y,
+    activated: false,
+  });
+
+  const puzzleVariant = rng() < 0.7 ? 'softwall' : 'door';
+
+  if (puzzleVariant === 'softwall') {
+    let softwallPos = null;
+    for (let attempts = 0; attempts < 30; attempts++) {
+      softwallPos = findFloorPosition(room, rng, occupied);
+      if (!softwallPos) break;
+      if (room.tiles[softwallPos.y][softwallPos.x] === _C.TILE_TYPES.FLOOR) {
+        break;
+      }
+    }
+    if (softwallPos) {
+      room.tiles[softwallPos.y][softwallPos.x] = _C.TILE_TYPES.SOFTWALL;
+      occupied.push(softwallPos);
+      elements.push({
+        type: 'softwall',
+        x: softwallPos.x,
+        y: softwallPos.y,
+        breakable: true,
+        linkedToSwitch: true,
+      });
+    }
+  } else {
+    const edges = ['top', 'bottom', 'left', 'right'];
+    const edge = edges[Math.floor(rng() * edges.length)];
+    const doorPos = findWallPosition(room, rng, edge, occupied);
+
+    if (doorPos) {
+      room.tiles[doorPos.y][doorPos.x] = _C.TILE_TYPES.DOOR;
+      occupied.push(doorPos);
+      elements.push({
+        type: 'door',
+        x: doorPos.x,
+        y: doorPos.y,
+        locked: true,
+        keyRequired: null,
+        linkedToSwitch: true,
+      });
+    }
+  }
+
+  return {
+    type: 'switch',
+    elements,
+    solution: `Step on switch at (${switchPos.x}, ${switchPos.y}) to ${puzzleVariant === 'softwall' ? 'break softwall' : 'unlock door'}`,
+    solved: false,
+    reward: 'small_key',
+  };
+}
+
+function generatePuzzles(rooms, dungeon, rng) {
+  const difficulty = dungeon.difficulty || 1;
+  const puzzleRooms = rooms.filter(r => r.type === 'puzzle');
+
+  for (const room of puzzleRooms) {
+    room.difficulty = difficulty;
+
+    const puzzleTypes = ['rock_push', 'lever', 'switch'];
+    if (room.width >= 6 && room.height >= 6) {
+      puzzleTypes.push('key_door');
+    }
+
+    const chosenType = puzzleTypes[Math.floor(rng() * puzzleTypes.length)];
+
+    let puzzle;
+    switch (chosenType) {
+      case 'rock_push':
+        puzzle = generateRockPushPuzzle(room, rng);
+        break;
+      case 'lever':
+        puzzle = generateLeverPuzzle(room, rng);
+        break;
+      case 'switch':
+        puzzle = generateSwitchPuzzle(room, rng);
+        break;
+      case 'key_door':
+        puzzle = generateKeyDoorPuzzle(room, rng);
+        break;
+      default:
+        puzzle = generateSwitchPuzzle(room, rng);
+        break;
+    }
+
+    if (puzzle) {
+      room.puzzles.push(puzzle);
+
+      if (puzzle.type === 'key_door' && puzzle.keyRoomId !== undefined) {
+        const keyRoom = rooms.find(r => r.id === puzzle.keyRoomId);
+        if (keyRoom) {
+          const keyPos = findFloorPosition(keyRoom, rng, null);
+          if (keyPos) {
+            const keyElement = puzzle.elements.find(e => e.type === 'key');
+            if (keyElement) {
+              keyElement.x = keyPos.x;
+              keyElement.y = keyPos.y;
+              keyElement.roomId = keyRoom.id;
+              room.tiles[keyPos.y][keyPos.x] = _C.TILE_TYPES.ITEM;
+            }
+          }
+        }
+      }
+    }
+  }
+
+  for (const room of puzzleRooms) {
+    for (const puzzle of room.puzzles) {
+      if (puzzle.type === 'key_door' && puzzle.keyRoomId === -1) {
+        const otherRooms = rooms.filter(r => r.id !== room.id && r.type !== 'boss');
+        if (otherRooms.length > 0) {
+          const keyRoom = otherRooms[Math.floor(rng() * otherRooms.length)];
+          puzzle.keyRoomId = keyRoom.id;
+          const keyPos = findFloorPosition(keyRoom, rng, null);
+          if (keyPos) {
+            const keyElement = puzzle.elements.find(e => e.type === 'key');
+            if (keyElement) {
+              keyElement.x = keyPos.x;
+              keyElement.y = keyPos.y;
+              keyElement.roomId = keyRoom.id;
+              keyRoom.tiles[keyPos.y][keyPos.x] = _C.TILE_TYPES.ITEM;
+              keyRoom.items.push({
+                type: 'key',
+                keyType: 'small_key',
+                x: keyPos.x,
+                y: keyPos.y,
+                collected: false,
+              });
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { generatePuzzles };
+}
\ No newline at end of file
diff --git a/src/generator/rooms.js b/src/generator/rooms.js
new file mode 100644
index 0000000..d6588f2
--- /dev/null
+++ b/src/generator/rooms.js
@@ -0,0 +1,399 @@
+'use strict';
+
+// null = FLOOR (default), explicit values for special tiles
+// Outer ring = WALL perimeter
+
+const NORMAL_TEMPLATES = [
+  // Empty room
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, null, null, 1],
+    [1, null, null, null, 1],
+    [1, null, null, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // With rock
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, null, null, 1],
+    [1, null, null, null, 1],
+    [1, null, null, 11, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // With softwall
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, null, null, 1],
+    [1, null, 2, null, 1],
+    [1, null, null, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // Rock + torch
+  [
+    [1, 1, 1, 1, 1],
+    [1, 5, null, null, 1],
+    [1, null, null, null, 1],
+    [1, null, null, 11, 1],
+    [1, 1, 1, 1, 1],
+  ],
+];
+
+const ENTRANCE_TEMPLATES = [
+  // EXIT at bottom
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, null, null, 1],
+    [1, null, 6, null, 1],
+    [1, null, null, null, 1],
+    [1, 1, 14, 1, 1],
+  ],
+  // EXIT at top
+  [
+    [1, 1, 14, 1, 1],
+    [1, null, null, null, 1],
+    [1, null, 6, null, 1],
+    [1, null, null, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // EXIT at left
+  [
+    [1, 1, 1, 1, 1],
+    [14, null, null, null, 1],
+    [1, null, null, 6, 1],
+    [1, null, null, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // EXIT at right
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, null, null, 14],
+    [1, null, 6, null, 1],
+    [1, null, null, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+];
+
+const BOSS_TEMPLATES = [
+  // Open arena, corner torches, EXIT bottom center
+  [
+    [1, 1, 1, 1, 1, 1, 1],
+    [1, 5, null, null, null, 5, 1],
+    [1, null, null, null, null, null, 1],
+    [1, null, null, null, null, null, 1],
+    [1, null, null, null, null, null, 1],
+    [1, 5, null, null, null, 5, 1],
+    [1, 1, 1, 14, 1, 1, 1],
+  ],
+  // Arena with center softwall
+  [
+    [1, 1, 1, 1, 1, 1, 1],
+    [1, 5, null, null, null, 5, 1],
+    [1, null, null, null, null, null, 1],
+    [1, null, null, 2, null, null, 1],
+    [1, null, null, null, null, null, 1],
+    [1, 5, null, null, null, 5, 1],
+    [1, 1, 1, 14, 1, 1, 1],
+  ],
+  // Arena with two softwalls
+  [
+    [1, 1, 1, 1, 1, 1, 1],
+    [1, 5, null, null, null, 5, 1],
+    [1, null, null, 2, null, null, 1],
+    [1, null, null, null, null, null, 1],
+    [1, null, null, 2, null, null, 1],
+    [1, 5, null, null, null, 5, 1],
+    [1, 1, 1, 14, 1, 1, 1],
+  ],
+];
+
+const TREASURE_TEMPLATES = [
+  // Chest in center, clean
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, null, null, 1],
+    [1, null, 12, null, 1],
+    [1, null, null, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // Chest with traps
+  [
+    [1, 1, 1, 1, 1],
+    [1, 9, null, 9, 1],
+    [1, null, 12, null, 1],
+    [1, null, null, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // Chest with traps + rock
+  [
+    [1, 1, 1, 1, 1],
+    [1, 9, null, 9, 1],
+    [1, null, 12, null, 1],
+    [1, null, 11, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // Chest surrounded by traps
+  [
+    [1, 1, 1, 1, 1],
+    [1, 9, 9, 9, 1],
+    [1, 9, 12, 9, 1],
+    [1, 9, 9, 9, 1],
+    [1, 1, 1, 1, 1],
+  ],
+];
+
+const PUZZLE_TEMPLATES = [
+  // Lever + target
+  [
+    [1, 1, 1, 1, 1, 1],
+    [1, null, null, 7, null, 1],
+    [1, null, null, null, null, 1],
+    [1, null, null, null, null, 1],
+    [1, null, 10, null, null, 1],
+    [1, 1, 1, 1, 1, 1],
+  ],
+  // Rock + target
+  [
+    [1, 1, 1, 1, 1, 1],
+    [1, null, null, null, 11, 1],
+    [1, null, null, null, null, 1],
+    [1, null, null, null, null, 1],
+    [1, null, 10, null, null, 1],
+    [1, 1, 1, 1, 1, 1],
+  ],
+  // Switch + target
+  [
+    [1, 1, 1, 1, 1, 1],
+    [1, null, null, 8, null, 1],
+    [1, null, null, null, null, 1],
+    [1, null, null, null, null, 1],
+    [1, null, 10, null, null, 1],
+    [1, 1, 1, 1, 1, 1],
+  ],
+  // Two levers + target
+  [
+    [1, 1, 1, 1, 1, 1],
+    [1, null, 7, null, null, 1],
+    [1, null, null, null, null, 1],
+    [1, null, null, null, null, 1],
+    [1, null, 10, null, 7, 1],
+    [1, 1, 1, 1, 1, 1],
+  ],
+];
+
+const TRAP_TEMPLATES = [
+  // 2 traps
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, 9, null, 1],
+    [1, null, null, null, 1],
+    [1, null, null, 9, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // 3 traps
+  [
+    [1, 1, 1, 1, 1],
+    [1, 9, null, null, 1],
+    [1, null, 9, null, 1],
+    [1, null, null, 9, 1],
+    [1, 1, 1, 1, 1],
+  ],
+  // 4 traps
+  [
+    [1, 1, 1, 1, 1],
+    [1, 9, null, null, 1],
+    [1, null, null, null, 1],
+    [1, null, null, 9, 1],
+    [1, 1, 9, 9, 1],
+  ],
+  // Lava traps
+  [
+    [1, 1, 1, 1, 1],
+    [1, null, 3, null, 1],
+    [1, null, null, null, 1],
+    [1, null, 3, null, 1],
+    [1, 1, 1, 1, 1],
+  ],
+];
+
+function getRoomLayoutTemplate(roomType, rng) {
+  let templates;
+
+  switch (roomType) {
+    case 'entrance':
+      templates = ENTRANCE_TEMPLATES;
+      break;
+    case 'boss':
+      templates = BOSS_TEMPLATES;
+      break;
+    case 'treasure':
+      templates = TREASURE_TEMPLATES;
+      break;
+    case 'puzzle':
+      templates = PUZZLE_TEMPLATES;
+      break;
+    case 'trap':
+      templates = TRAP_TEMPLATES;
+      break;
+    default:
+      templates = NORMAL_TEMPLATES;
+      break;
+  }
+
+  const idx = Math.floor(rng() * templates.length);
+  return templates[idx].map(row => [...row]);
+}
+
+function generateRoomLayout(room, theme, rng) {
+  const template = getRoomLayoutTemplate(room.type, rng);
+  const tW = template[0].length;
+  const tH = template.length;
+  const rW = room.width;
+  const rH = room.height;
+
+  // Initialize room grid: walls on perimeter, floor inside
+  const grid = [];
+  for (let y = 0; y < rH; y++) {
+    grid[y] = [];
+    for (let x = 0; x < rW; x++) {
+      if (y === 0 || y === rH - 1 || x === 0 || x === rW - 1) {
+        grid[y][x] = TILE_TYPES.WALL;
+      } else {
+        grid[y][x] = TILE_TYPES.FLOOR;
+      }
+    }
+  }
+
+  // Map template tiles to room grid
+  for (let ty = 0; ty < tH; ty++) {
+    for (let tx = 0; tx < tW; tx++) {
+      const tile = template[ty][tx];
+      if (tile === null) continue;
+
+      let rx, ry;
+
+      // Interior tile
+      if (ty > 0 && ty < tH - 1 && tx > 0 && tx < tW - 1) {
+        rx = Math.round((tx - 1) * (rW - 2) / (tW - 2)) + 1;
+        ry = Math.round((ty - 1) * (rH - 2) / (tH - 2)) + 1;
+      }
+      // Top edge
+      else if (ty === 0 && tx > 0 && tx < tW - 1) {
+        rx = Math.round((tx / (tW - 1)) * (rW - 1));
+        ry = 0;
+      }
+      // Bottom edge
+      else if (ty === tH - 1 && tx > 0 && tx < tW - 1) {
+        rx = Math.round((tx / (tW - 1)) * (rW - 1));
+        ry = rH - 1;
+      }
+      // Left edge
+      else if (tx === 0 && ty > 0 && ty < tH - 1) {
+        rx = 0;
+        ry = Math.round((ty / (tH - 1)) * (rH - 1));
+      }
+      // Right edge
+      else if (tx === tW - 1 && ty > 0 && ty < tH - 1) {
+        rx = rW - 1;
+        ry = Math.round((ty / (tH - 1)) * (rH - 1));
+      }
+      // Corners (wall overlaps, skip unless special)
+      else {
+        continue;
+      }
+
+      if (rx >= 0 && rx < rW && ry >= 0 && ry < rH) {
+        grid[ry][rx] = tile;
+      }
+    }
+  }
+
+  // Add corner torches based on RNG
+  if (rng() < 0.6) {
+    grid[1][1] = TILE_TYPES.TORCH;
+  }
+  if (rng() < 0.4) {
+    grid[1][rW - 2] = TILE_TYPES.TORCH;
+  }
+  if (rng() < 0.4) {
+    grid[rH - 2][1] = TILE_TYPES.TORCH;
+  }
+  if (rng() < 0.6) {
+    grid[rH - 2][rW - 2] = TILE_TYPES.TORCH;
+  }
+
+  // Add theme-appropriate floor decorations
+  if (theme && theme.floorHazards) {
+    for (const hazard of theme.floorHazards) {
+      if (rng() < hazard.chance) {
+        const hx = 1 + Math.floor(rng() * (rW - 2));
+        const hy = 1 + Math.floor(rng() * (rH - 2));
+        if (grid[hy][hx] === TILE_TYPES.FLOOR) {
+          grid[hy][hx] = hazard.tileType;
+        }
+      }
+    }
+  }
+
+  room.tiles = grid;
+  applyThemeToRoom(room, theme);
+  return grid;
+}
+
+function applyThemeToRoom(room, theme) {
+  if (!theme) return;
+
+  room.theme = theme;
+  room.floorColor = theme.floorColor;
+  room.floorDarkColor = theme.floorDarkColor;
+  room.wallColor = theme.wallColor;
+  room.wallTopColor = theme.wallTopColor;
+  room.wallFrontColor = theme.wallFrontColor;
+  room.wallBottomColor = theme.wallBottomColor;
+  room.wallBorderColor = theme.wallBorderColor;
+
+  for (const deco of room.decorations) {
+    switch (deco.type) {
+      case 'torch':
+        deco.glowColor = theme.torchGlow;
+        deco.stickColor = theme.torchStickColor;
+        deco.flameColor = theme.torchFlameColor;
+        deco.coreColor = theme.torchCoreColor;
+        break;
+      case 'rock':
+        deco.color = theme.rockColor || '#888888';
+        deco.darkColor = theme.rockDarkColor || '#666666';
+        deco.lightColor = theme.rockLightColor || '#AAAAAA';
+        break;
+      case 'chest':
+        deco.closedColor = theme.chestClosedColor || '#8B4513';
+        deco.goldColor = theme.chestGoldColor || '#DAA520';
+        deco.openColor = theme.chestOpenColor || '#A0522D';
+        break;
+      case 'lever':
+        deco.color = theme.leverColor || '#B8860B';
+        break;
+      case 'switch':
+        deco.color = theme.switchFloorColor || '#DAA520';
+        break;
+      case 'target':
+        deco.color = theme.targetColor || '#FFD700';
+        deco.glowColor = theme.targetGlow || 'rgba(255,215,0,0.3)';
+        break;
+      case 'trap':
+        deco.color = theme.trapColor || '#8B008B';
+        break;
+      case 'lava':
+        deco.color = theme.lavaColor || '#FF4500';
+        deco.lightColor = theme.lavaLightColor || '#FF6347';
+        break;
+      case 'water':
+        deco.color = theme.waterColor || '#4169AA';
+        deco.lightColor = theme.waterLightColor || '#5F9EA0';
+        break;
+    }
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { generateRoomLayout, getRoomLayoutTemplate, applyThemeToRoom };
+}
\ No newline at end of file
diff --git a/src/input/actions.js b/src/input/actions.js
new file mode 100644
index 0000000..2621afb
--- /dev/null
+++ b/src/input/actions.js
@@ -0,0 +1,29 @@
+'use strict';
+
+// === ACTION DEFINITIONS ===
+// Maps action names to key bindings. Actual key detection is in keyboard.js.
+
+const ACTIONS = {
+  move: { keys: ['ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'KeyW', 'KeyA', 'KeyS', 'KeyD'], type: 'hold' },
+  attack: { keys: ['Space', 'KeyZ'], type: 'press' },
+  interact: { keys: ['KeyE', 'Enter'], type: 'press' },
+  menu: { keys: ['KeyI'], type: 'press' },
+  back: { keys: ['Escape', 'KeyQ'], type: 'press' },
+  switchWeapon: { keys: ['KeyX'], type: 'press' },
+  useItem: { keys: ['KeyR'], type: 'press' },
+  bomb: { keys: ['KeyB'], type: 'press' },
+};
+
+// Menu navigation actions
+const MENU_ACTIONS = {
+  up: { keys: ['ArrowUp', 'KeyW'] },
+  down: { keys: ['ArrowDown', 'KeyS'] },
+  left: { keys: ['ArrowLeft', 'KeyA'] },
+  right: { keys: ['ArrowRight', 'KeyD'] },
+  select: { keys: ['Enter', 'Space'] },
+  back: { keys: ['Escape', 'KeyQ'] },
+};
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { ACTIONS, MENU_ACTIONS, initActions: () => {}, getActionState: () => {}, getAction: () => {}, getActiveActions: () => {} };
+}
\ No newline at end of file
diff --git a/src/input/keyboard.js b/src/input/keyboard.js
new file mode 100644
index 0000000..501c125
--- /dev/null
+++ b/src/input/keyboard.js
@@ -0,0 +1,83 @@
+'use strict';
+
+// === KEYBOARD INPUT SYSTEM ===
+
+const inputSystem = {
+  keys: {},
+  justPressed: {},
+  actions: {},
+
+  init() {
+    document.addEventListener('keydown', (e) => {
+      if (['ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'Space', 'Enter', 'ShiftLeft', 'ShiftRight', 'KeyE', 'KeyI', 'KeyQ', 'Tab'].includes(e.code)) {
+        e.preventDefault();
+      }
+      if (!this.keys[e.code]) {
+        this.justPressed[e.code] = true;
+      }
+      this.keys[e.code] = true;
+    });
+    document.addEventListener('keyup', (e) => {
+      this.keys[e.code] = false;
+    });
+  },
+
+  clearKeys() {
+    this.keys = {};
+    this.justPressed = {};
+  },
+
+  update(dt) {
+    // Process actions
+    this.actions = {
+      move: this.getMove(),
+      attack: this.justPressed['Space'] || this.justPressed['KeyZ'],
+      interact: this.justPressed['KeyE'] || this.justPressed['Enter'],
+      menu: this.justPressed['KeyI'],
+      back: this.justPressed['Escape'] || this.justPressed['KeyQ'],
+      switchWeapon: this.justPressed['KeyX'],
+      useItem: this.justPressed['KeyR'],
+      bomb: this.justPressed['KeyB'],
+    };
+
+    // Clear justPressed for next frame
+    this.justPressed = {};
+  },
+
+  getMove() {
+    let dx = 0, dy = 0;
+    if (this.keys['ArrowUp'] || this.keys['KeyW']) dy = -1;
+    else if (this.keys['ArrowDown'] || this.keys['KeyS']) dy = 1;
+    if (this.keys['ArrowLeft'] || this.keys['KeyA']) dx = -1;
+    else if (this.keys['ArrowRight'] || this.keys['KeyD']) dx = 1;
+    if (dx !== 0 || dy !== 0) return { dx, dy };
+    return null;
+  },
+
+  getAction(name) {
+    return this.actions[name] || false;
+  },
+
+  isKeyDown(code) {
+    return !!this.keys[code];
+  },
+
+  wasKeyPressed(code) {
+    return !!this.justPressed[code];
+  },
+};
+
+function initKeyboard() {
+  inputSystem.init();
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { inputSystem, initKeyboard, isKeyDown: (code) => inputSystem.isKeyDown(code),
+    isKeyJustPressed: (code) => inputSystem.wasKeyPressed(code),
+    setKeyHandlers: () => {},
+    resetKeys: () => inputSystem.clearKeys(),
+    getMove: () => inputSystem.getMove(),
+    getAction: (name) => inputSystem.getAction(name),
+    clearKeys: () => inputSystem.clearKeys(),
+    update: (dt) => inputSystem.update(dt) };
+}
\ No newline at end of file
diff --git a/src/menu/dungeon-select.js b/src/menu/dungeon-select.js
new file mode 100644
index 0000000..09eb472
--- /dev/null
+++ b/src/menu/dungeon-select.js
@@ -0,0 +1,195 @@
+'use strict';
+
+// === DUNGEON SELECT SCREEN ===
+
+function renderDungeonSelect(container, save, onSelected) {
+  container.innerHTML = '';
+  container.style.background = 'linear-gradient(180deg, #0a0a1a 0%, #1a1a2d 50%, #0a0a1a 100%)';
+
+  const title = document.createElement('div');
+  title.className = 'menu-title';
+  title.textContent = 'SELECT DUNGEON';
+  container.appendChild(title);
+
+  // Filter tabs
+  const filterContainer = document.createElement('div');
+  filterContainer.className = 'filter-tabs';
+  filterContainer.style.pointerEvents = 'auto';
+
+  const themeNames = ['All', ...Object.keys(THEMES)];
+  let activeFilter = 'all';
+
+  for (const theme of themeNames) {
+    const tab = document.createElement('button');
+    tab.className = 'filter-tab' + (theme === 'All' ? ' active' : '');
+    tab.textContent = theme === 'All' ? 'All' : theme;
+    tab.dataset.theme = theme === 'All' ? 'all' : theme.toLowerCase();
+    tab.addEventListener('click', () => {
+      filterContainer.querySelectorAll('.filter-tab').forEach(t => t.classList.remove('active'));
+      tab.classList.add('active');
+      activeFilter = tab.dataset.theme;
+      renderGrid(activeFilter);
+    });
+    filterContainer.appendChild(tab);
+  }
+  container.appendChild(filterContainer);
+
+  // Dungeon grid
+  const grid = document.createElement('div');
+  grid.className = 'dungeon-grid';
+  grid.id = 'dungeon-grid';
+
+  function renderGrid(filter) {
+    grid.innerHTML = '';
+    const filtered = filter === 'all'
+      ? DUNGEONS.map((d, i) => ({ ...d, idx: i }))
+      : DUNGEONS.map((d, i) => ({ ...d, idx: i })).filter(d => d.theme === filter);
+
+    for (const dungeon of filtered) {
+      const cell = document.createElement('div');
+      cell.className = 'dungeon-cell';
+      const themeData = THEMES[dungeon.theme];
+      cell.style.background = themeData ? themeData.cellColor || '#333' : '#333';
+      cell.style.color = themeData ? themeData.cellTextColor || '#FFF' : '#FFF';
+      cell.textContent = dungeon.idx + 1;
+      cell.dataset.idx = dungeon.idx;
+
+      const unlocked = isDungeonUnlocked(dungeon.idx);
+      const completed = isDungeonCompleted(dungeon.idx);
+
+      if (!unlocked) cell.classList.add('locked');
+      if (completed) cell.classList.add('completed');
+
+      if (unlocked) {
+        cell.addEventListener('click', () => {
+          grid.querySelectorAll('.dungeon-cell').forEach(c => c.classList.remove('selected'));
+          cell.classList.add('selected');
+          showInfoPanel(dungeon);
+        });
+        cell.addEventListener('dblclick', () => {
+          if (unlocked) onSelected(dungeon.idx);
+        });
+      }
+
+      grid.appendChild(cell);
+    }
+  }
+  renderGrid('all');
+  container.appendChild(grid);
+
+  // Info panel
+  const infoPanel = document.createElement('div');
+  infoPanel.className = 'info-panel';
+  infoPanel.id = 'info-panel';
+  infoPanel.style.display = 'none';
+  container.appendChild(infoPanel);
+
+  function showInfoPanel(dungeon) {
+    infoPanel.style.display = 'block';
+    const themeData = THEMES[dungeon.theme] || {};
+    infoPanel.innerHTML = `
+      <div class="name">${dungeon.name}</div>
+      <div class="theme">Theme: ${dungeon.theme}</div>
+      <div class="difficulty">Difficulty: ${'★'.repeat(dungeon.difficulty)}${'☆'.repeat(10 - dungeon.difficulty)}</div>
+      <div class="rooms">Rooms: ${dungeon.roomCount}</div>
+      ${dungeon.requiredWeapon ? `<div style="color:#FF6347">Requires: ${dungeon.requiredWeapon}</div>` : ''}
+      <div style="margin-top:4px; color:#AAA">${dungeon.description || ''}</div>
+      <div style="margin-top:6px; color:#888">Double-click to enter</div>
+    `;
+  }
+
+  // Enter button
+  const enterBtn = document.createElement('button');
+  enterBtn.className = 'menu-button';
+  enterBtn.textContent = 'Enter Dungeon';
+  enterBtn.id = 'enter-btn';
+  enterBtn.style.marginTop = '10px';
+  enterBtn.style.display = 'none';
+  enterBtn.addEventListener('click', () => {
+    const selected = grid.querySelector('.dungeon-cell.selected');
+    if (selected && !selected.classList.contains('locked')) {
+      onSelected(parseInt(selected.dataset.idx));
+    }
+  });
+  container.appendChild(enterBtn);
+
+  // Back button
+  const backBtn = document.createElement('button');
+  backBtn.className = 'menu-button';
+  backBtn.textContent = 'Back';
+  backBtn.style.marginTop = '6px';
+  backBtn.addEventListener('click', () => { switchScreen(SCREEN_TITLE); });
+  container.appendChild(backBtn);
+
+  // Listen for cell selection to show enter button
+  const origRenderGrid = renderGrid;
+  grid.addEventListener('click', () => {
+    const selected = grid.querySelector('.dungeon-cell.selected');
+    enterBtn.style.display = selected && !selected.classList.contains('locked') ? 'block' : 'none';
+  });
+
+  // Keyboard navigation
+  let selectedCell = null;
+  container.addEventListener('keydown', (e) => {
+    const cells = [...grid.querySelectorAll('.dungeon-cell:not(.locked)')];
+    if (!cells.length) return;
+
+    if (!selectedCell) {
+      selectedCell = cells[0];
+      selectedCell.classList.add('selected');
+      const idx = parseInt(selectedCell.dataset.idx);
+      showInfoPanel(DUNGEONS[idx]);
+      enterBtn.style.display = 'block';
+      return;
+    }
+
+    const idx = cells.indexOf(selectedCell);
+
+    if (e.code === 'ArrowRight' || e.code === 'KeyD') {
+      e.preventDefault();
+      selectedCell.classList.remove('selected');
+      selectedCell = cells[Math.min(idx + 1, cells.length - 1)];
+      selectedCell.classList.add('selected');
+      const i = parseInt(selectedCell.dataset.idx);
+      showInfoPanel(DUNGEONS[i]);
+    }
+    if (e.code === 'ArrowLeft' || e.code === 'KeyA') {
+      e.preventDefault();
+      selectedCell.classList.remove('selected');
+      selectedCell = cells[Math.max(idx - 1, 0)];
+      selectedCell.classList.add('selected');
+      const i = parseInt(selectedCell.dataset.idx);
+      showInfoPanel(DUNGEONS[i]);
+    }
+    if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+      e.preventDefault();
+      selectedCell.classList.remove('selected');
+      selectedCell = cells[Math.min(idx + 10, cells.length - 1)];
+      selectedCell.classList.add('selected');
+      const i = parseInt(selectedCell.dataset.idx);
+      showInfoPanel(DUNGEONS[i]);
+    }
+    if (e.code === 'ArrowUp' || e.code === 'KeyW') {
+      e.preventDefault();
+      selectedCell.classList.remove('selected');
+      selectedCell = cells[Math.max(idx - 10, 0)];
+      selectedCell.classList.add('selected');
+      const i = parseInt(selectedCell.dataset.idx);
+      showInfoPanel(DUNGEONS[i]);
+    }
+    if (e.code === 'Enter' || e.code === 'Space') {
+      e.preventDefault();
+      if (selectedCell && !selectedCell.classList.contains('locked')) {
+        onSelected(parseInt(selectedCell.dataset.idx));
+      }
+    }
+    if (e.code === 'Escape' || e.code === 'KeyQ') {
+      e.preventDefault();
+      switchScreen(SCREEN_TITLE);
+    }
+  });
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderDungeonSelect };
+}
\ No newline at end of file
diff --git a/src/menu/hud-overlay.js b/src/menu/hud-overlay.js
new file mode 100644
index 0000000..197f687
--- /dev/null
+++ b/src/menu/hud-overlay.js
@@ -0,0 +1,75 @@
+'use strict';
+
+// === INVENTORY / HUD OVERLAY ===
+
+function renderInventoryOverlay(container, state) {
+  container.innerHTML = '';
+  container.style.background = 'rgba(0,0,0,0.85)';
+
+  const title = document.createElement('div');
+  title.className = 'menu-title';
+  title.textContent = 'INVENTORY';
+  title.style.fontSize = '24px';
+  container.appendChild(title);
+
+  // Weapons
+  const weaponsDiv = document.createElement('div');
+  weaponsDiv.style.cssText = 'font-family: monospace; font-size: 12px; color: #CCC; margin: 8px 0; max-width: 400px;';
+  weaponsDiv.innerHTML = '<div style="color:#FFD700; margin-bottom:4px;">WEAPONS</div>';
+  if (state.player.weapons.length === 0) {
+    weaponsDiv.innerHTML += '<div style="color:#666;">No weapons</div>';
+  } else {
+    for (const w of state.player.weapons) {
+      const isActive = w === state.player.activeWeapon;
+      const line = document.createElement('div');
+      line.style.cssText = `color: ${isActive ? '#FFD700' : '#AAA'}; padding: 2px 0;`;
+      line.textContent = `${isActive ? '> ' : '  '}${w.name} (DMG:${w.damage})`;
+      weaponsDiv.appendChild(line);
+    }
+  }
+  container.appendChild(weaponsDiv);
+
+  // Items
+  const itemsDiv = document.createElement('div');
+  itemsDiv.style.cssText = 'font-family: monospace; font-size: 12px; color: #CCC; margin: 8px 0; max-width: 400px;';
+  itemsDiv.innerHTML = '<div style="color:#FFD700; margin-bottom:4px;">ITEMS</div>';
+  if (state.player.items.length === 0) {
+    itemsDiv.innerHTML += '<div style="color:#666;">No items</div>';
+  } else {
+    for (const item of state.player.items) {
+      const def = ITEMS.find(i => i.id === item.id);
+      const line = document.createElement('div');
+      line.style.cssText = 'color: #90EE90; padding: 2px 0;';
+      line.textContent = `${def ? def.name : item.id}${(item.count || 1) > 1 ? ` x${item.count}` : ''}`;
+      itemsDiv.appendChild(line);
+    }
+  }
+  container.appendChild(itemsDiv);
+
+  // Resources
+  const resourcesDiv = document.createElement('div');
+  resourcesDiv.style.cssText = 'font-family: monospace; font-size: 12px; color: #CCC; margin: 8px 0; max-width: 400px;';
+  resourcesDiv.innerHTML = `
+    <div style="color:#FFD700; margin-bottom:4px;">RESOURCES</div>
+    <div>Arrows: ${state.player.arrows}</div>
+    <div>Bombs: ${state.player.bombs}</div>
+    <div>Keys: ${state.player.keys}</div>
+  `;
+  container.appendChild(resourcesDiv);
+
+  // Stats
+  const statsDiv = document.createElement('div');
+  statsDiv.style.cssText = 'font-family: monospace; font-size: 11px; color: #888; margin-top: 10px; max-width: 400px; text-align: center;';
+  statsDiv.textContent = `Dungeons: ${state.dungeonsCompleted}  Rooms: ${state.roomsCleared}  Enemies: ${state.enemiesDefeated}`;
+  container.appendChild(statsDiv);
+
+  // Controls hint
+  const hint = document.createElement('div');
+  hint.style.cssText = 'font-family: monospace; font-size: 11px; color: #666; margin-top: 10px; text-align: center;';
+  hint.textContent = 'X: Switch Weapon  R: Use Potion  I/Escape: Close';
+  container.appendChild(hint);
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderInventoryOverlay };
+}
\ No newline at end of file
diff --git a/src/menu/screens.js b/src/menu/screens.js
new file mode 100644
index 0000000..5fc77ff
--- /dev/null
+++ b/src/menu/screens.js
@@ -0,0 +1,244 @@
+'use strict';
+
+// === DEATH / WIN / COMPLETION SCREENS ===
+
+function renderDeathScreen(container, state) {
+  container.innerHTML = '';
+  container.style.background = 'rgba(20,0,0,0.9)';
+
+  const title = document.createElement('div');
+  title.className = 'menu-title';
+  title.textContent = 'YOU DIED';
+  title.style.color = '#FF0000';
+  container.appendChild(title);
+
+  const dungeon = DUNGEONS[state.currentDungeon];
+  if (dungeon) {
+    const subtitle = document.createElement('div');
+    subtitle.className = 'menu-subtitle';
+    subtitle.textContent = `${dungeon.name} - Room ${state.currentRoomIdx + 1}`;
+    container.appendChild(subtitle);
+  }
+
+  const stats = document.createElement('div');
+  stats.style.cssText = 'font-family: monospace; font-size: 12px; color: #888; margin: 15px 0; text-align: center; line-height: 1.8;';
+  stats.innerHTML = `
+    Rooms Cleared: ${state.roomsCleared}<br>
+    Enemies Defeated: ${state.enemiesDefeated}<br>
+    Dungeons Completed: ${state.dungeonsCompleted}
+  `;
+  container.appendChild(stats);
+
+  // Retry button
+  const retryBtn = createMenuButton('Try Again', 0);
+  retryBtn.addEventListener('click', () => {
+    state.roomsCleared = 0;
+    state.enemiesDefeated = 0;
+    resetPlayer();
+    state.player.invincibleTimer = 1000;
+    // Restore saved weapons
+    for (const wName of saveData.weapons) {
+      const wDef = WEAPONS.find(w => w.name === wName);
+      if (wDef && !state.player.weapons.find(w => w.name === wName)) {
+        state.player.weapons.push({ ...wDef });
+      }
+    }
+    if (state.player.weapons.length > 0 && !state.player.activeWeapon) {
+      state.player.activeWeapon = state.player.weapons[0];
+    }
+    state.currentRoomIdx = 0;
+    state.dungeonRooms = generateDungeon(DUNGEONS[state.currentDungeon]);
+    loadDungeonRoom(state.currentDungeon, 0);
+    switchScreen(SCREEN_PLAYING);
+  });
+  container.appendChild(retryBtn);
+
+  // Dungeon select button
+  const selectBtn = createMenuButton('Dungeon Select', 1);
+  selectBtn.addEventListener('click', () => { switchScreen(SCREEN_DUNGEON_SELECT); });
+  container.appendChild(selectBtn);
+
+  // Title button
+  const titleBtn = createMenuButton('Title Screen', 2);
+  titleBtn.addEventListener('click', () => { switchScreen(SCREEN_TITLE); });
+  container.appendChild(titleBtn);
+
+  // Keyboard navigation
+  const buttons = [retryBtn, selectBtn, titleBtn];
+  let selectedIndex = 0;
+  buttons[0].classList.add('selected');
+
+  container.addEventListener('keydown', (e) => {
+    if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+      e.preventDefault();
+      buttons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex + 1) % buttons.length;
+      buttons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'ArrowUp' || e.code === 'KeyW') {
+      e.preventDefault();
+      buttons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex - 1 + buttons.length) % buttons.length;
+      buttons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'Enter' || e.code === 'Space') {
+      e.preventDefault();
+      buttons[selectedIndex].click();
+    }
+  });
+}
+
+function renderDungeonCompleteScreen(container, state) {
+  container.innerHTML = '';
+  container.style.background = 'rgba(0,10,0,0.9)';
+
+  const title = document.createElement('div');
+  title.className = 'menu-title';
+  title.textContent = 'DUNGEON CLEARED!';
+  title.style.color = '#00FF00';
+  container.appendChild(title);
+
+  const dungeon = DUNGEONS[state.currentDungeon];
+  if (dungeon) {
+    const subtitle = document.createElement('div');
+    subtitle.className = 'menu-subtitle';
+    subtitle.textContent = `${dungeon.name} conquered!`;
+    container.appendChild(subtitle);
+  }
+
+  const stats = document.createElement('div');
+  stats.style.cssText = 'font-family: monospace; font-size: 12px; color: #AAA; margin: 15px 0; text-align: center; line-height: 1.8;';
+  stats.innerHTML = `
+    Rooms Cleared: ${state.roomsCleared}<br>
+    Enemies Defeated: ${state.enemiesDefeated}<br>
+    HP Remaining: ${state.player.hp}/${state.player.maxHp}
+  `;
+  container.appendChild(stats);
+
+  const nextIdx = state.currentDungeon + 1;
+  const hasNext = nextIdx < DUNGEONS.length;
+
+  if (hasNext) {
+    const nextDungeon = DUNGEONS[nextIdx];
+    const nextInfo = document.createElement('div');
+    nextInfo.style.cssText = 'font-family: monospace; font-size: 12px; color: #FFD700; margin: 8px 0; text-align: center;';
+    nextInfo.textContent = `Next: ${nextDungeon.name} (Difficulty: ${'★'.repeat(nextDungeon.difficulty)})`;
+    container.appendChild(nextInfo);
+
+    const nextBtn = createMenuButton('Next Dungeon', 0);
+    nextBtn.addEventListener('click', () => {
+      state.currentDungeon = nextIdx;
+      state.currentRoomIdx = 0;
+      state.roomsCleared = 0;
+      state.dungeonRooms = generateDungeon(DUNGEONS[nextIdx]);
+      resetPlayer();
+      switchScreen(SCREEN_PLAYING);
+    });
+    container.appendChild(nextBtn);
+  }
+
+  const selectBtn = createMenuButton('Dungeon Select', hasNext ? 1 : 0);
+  selectBtn.addEventListener('click', () => { switchScreen(SCREEN_DUNGEON_SELECT); });
+  container.appendChild(selectBtn);
+
+  const titleBtn = createMenuButton('Title Screen', hasNext ? 2 : 1);
+  titleBtn.addEventListener('click', () => { switchScreen(SCREEN_TITLE); });
+  container.appendChild(titleBtn);
+
+  // Keyboard navigation
+  const buttons = container.querySelectorAll('.menu-button');
+  let selectedIndex = 0;
+  if (buttons.length) buttons[0].classList.add('selected');
+
+  container.addEventListener('keydown', (e) => {
+    if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+      e.preventDefault();
+      buttons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex + 1) % buttons.length;
+      buttons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'ArrowUp' || e.code === 'KeyW') {
+      e.preventDefault();
+      buttons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex - 1 + buttons.length) % buttons.length;
+      buttons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'Enter' || e.code === 'Space') {
+      e.preventDefault();
+      buttons[selectedIndex].click();
+    }
+  });
+}
+
+function renderGameCompleteScreen(container, state) {
+  container.innerHTML = '';
+  container.style.background = 'linear-gradient(180deg, #0a0a00 0%, #1a1a00 50%, #0a0a00 100%)';
+
+  const title = document.createElement('div');
+  title.className = 'menu-title';
+  title.textContent = 'ALL DUNGEONS CLEARED!';
+  title.style.color = '#FFD700';
+  title.style.fontSize = '24px';
+  container.appendChild(title);
+
+  const subtitle = document.createElement('div');
+  subtitle.className = 'menu-subtitle';
+  subtitle.textContent = 'You are the true Hero of Dungeons!';
+  container.appendChild(subtitle);
+
+  const sword = document.createElement('div');
+  sword.style.cssText = 'margin: 10px 0 20px; font-size: 36px; color: #FFD700;';
+  sword.textContent = '\u2694 \u2694 \u2694';
+  container.appendChild(sword);
+
+  const stats = document.createElement('div');
+  stats.style.cssText = 'font-family: monospace; font-size: 13px; color: #DDD; margin: 10px 0; text-align: center; line-height: 2;';
+  stats.innerHTML = `
+    Dungeons Conquered: 100<br>
+    Total Rooms Cleared: ${saveData.totalRoomsCleared}<br>
+    Total Enemies Slain: ${saveData.totalEnemiesDefeated}<br>
+    Weapons Found: ${saveData.weapons.length}/${WEAPONS.length}<br>
+    Heart Pieces: ${saveData.heartPieces}
+  `;
+  container.appendChild(stats);
+
+  const trophy = document.createElement('div');
+  trophy.style.cssText = 'font-size: 48px; margin: 15px 0;';
+  trophy.textContent = '\uD83C\uDFC6';
+  container.appendChild(trophy);
+
+  const titleBtn = createMenuButton('Title Screen', 0);
+  titleBtn.addEventListener('click', () => { switchScreen(SCREEN_TITLE); });
+  container.appendChild(titleBtn);
+
+  const selectBtn = createMenuButton('Dungeon Select', 1);
+  selectBtn.addEventListener('click', () => { switchScreen(SCREEN_DUNGEON_SELECT); });
+  container.appendChild(selectBtn);
+
+  const buttons = [titleBtn, selectBtn];
+  let selectedIndex = 0;
+  buttons[0].classList.add('selected');
+
+  container.addEventListener('keydown', (e) => {
+    if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+      e.preventDefault();
+      buttons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex + 1) % buttons.length;
+      buttons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'ArrowUp' || e.code === 'KeyW') {
+      e.preventDefault();
+      buttons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex - 1 + buttons.length) % buttons.length;
+      buttons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'Enter' || e.code === 'Space') {
+      e.preventDefault();
+      buttons[selectedIndex].click();
+    }
+  });
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderDeathScreen, renderDungeonCompleteScreen, renderGameCompleteScreen };
+}
\ No newline at end of file
diff --git a/src/menu/title-screen.js b/src/menu/title-screen.js
new file mode 100644
index 0000000..80a87e5
--- /dev/null
+++ b/src/menu/title-screen.js
@@ -0,0 +1,131 @@
+'use strict';
+
+// === TITLE SCREEN ===
+
+function renderTitleScreen(container) {
+  container.innerHTML = '';
+  container.style.background = 'linear-gradient(180deg, #1a0a00 0%, #2d1810 50%, #1a0a00 100%)';
+
+  const title = document.createElement('div');
+  title.className = 'menu-title';
+  title.textContent = 'ZELDA DUNGEON QUEST';
+  title.style.fontSize = '28px';
+  container.appendChild(title);
+
+  const subtitle = document.createElement('div');
+  subtitle.className = 'menu-subtitle';
+  subtitle.textContent = '100 Dungeons  \u00B7  22 Enemies  \u00B7  12 Weapons';
+  container.appendChild(subtitle);
+
+  // Decorative sword
+  const swordDiv = document.createElement('div');
+  swordDiv.style.cssText = 'margin: 10px 0 20px; font-size: 24px; color: #C0C0C0;';
+  swordDiv.textContent = '\u2694';
+  container.appendChild(swordDiv);
+
+  // Menu buttons
+  const buttonsContainer = document.createElement('div');
+  buttonsContainer.style.cssText = 'display: flex; flex-direction: column; align-items: center; gap: 6px;';
+
+  const startBtn = createMenuButton('Start Adventure', 0);
+  startBtn.addEventListener('click', () => { switchScreen(SCREEN_DUNGEON_SELECT); });
+  buttonsContainer.appendChild(startBtn);
+
+  const controlsBtn = createMenuButton('Controls', 1);
+  const controlsDiv = document.createElement('div');
+  controlsDiv.style.cssText = 'display: none; font-family: monospace; font-size: 11px; color: #AAA; background: rgba(0,0,0,0.7); border: 1px solid #555; padding: 10px 14px; margin: 8px 0; max-width: 360px; text-align: left; line-height: 1.6;';
+  controlsDiv.innerHTML = `
+    <span style="color:#FFD700">Movement:</span> Arrow Keys / WASD<br>
+    <span style="color:#FFD700">Attack:</span> Space / Z<br>
+    <span style="color:#FFD700">Interact:</span> E / Enter<br>
+    <span style="color:#FFD700">Switch Weapon:</span> X<br>
+    <span style="color:#FFD700">Use Potion:</span> R<br>
+    <span style="color:#FFD700">Place Bomb:</span> B<br>
+    <span style="color:#FFD700">Menu/Inventory:</span> I<br>
+    <span style="color:#FFD700">Back:</span> Escape / Q<br>
+    <span style="color:#FFD700">Debug:</span> F1 (overlay) F2 (skip) F3 (god) F4 (spawn)
+  `;
+  controlsBtn.addEventListener('click', () => {
+    controlsDiv.style.display = controlsDiv.style.display === 'none' ? 'block' : 'none';
+  });
+  buttonsContainer.appendChild(controlsBtn);
+  buttonsContainer.appendChild(controlsDiv);
+
+  container.appendChild(buttonsContainer);
+
+  // Save info
+  const summary = getSaveSummary();
+  const lastDungeon = saveData.completedDungeons.length > 0
+    ? saveData.completedDungeons[saveData.completedDungeons.length - 1] + 1
+    : 0;
+  if (summary.dungeonsCompleted > 0) {
+    const saveInfo = document.createElement('div');
+    saveInfo.className = 'menu-subtitle';
+    saveInfo.style.marginTop = '15px';
+    saveInfo.style.fontSize = '12px';
+    saveInfo.textContent = `Progress: ${summary.dungeonsCompleted}/100 dungeons  \u00B7  ${summary.enemiesDefeated} enemies slain`;
+    container.appendChild(saveInfo);
+
+    const resumeBtn = createMenuButton('Resume', 2);
+    if (lastDungeon < DUNGEONS.length) {
+      resumeBtn.addEventListener('click', () => {
+        gameState.currentDungeon = lastDungeon;
+        gameState.currentRoomIdx = 0;
+        gameState.dungeonRooms = generateDungeon(DUNGEONS[lastDungeon]);
+        resetPlayer();
+        // Restore saved weapons
+        for (const wName of saveData.weapons) {
+          const wDef = WEAPONS.find(w => w.name === wName);
+          if (wDef && !gameState.player.weapons.find(w => w.name === wName)) {
+            gameState.player.weapons.push({ ...wDef });
+          }
+        }
+        if (gameState.player.weapons.length > 0 && !gameState.player.activeWeapon) {
+          gameState.player.activeWeapon = gameState.player.weapons[0];
+        }
+        switchScreen(SCREEN_PLAYING);
+      });
+      container.appendChild(resumeBtn);
+    }
+  }
+
+  // Keyboard navigation for title screen
+  let selectedIndex = 0;
+  const allButtons = [startBtn];
+  if (summary.dungeonsCompleted > 0 && lastDungeon < DUNGEONS.length) allButtons.unshift(
+    document.querySelector('.menu-button[data-index="2"]')
+  );
+
+  container.addEventListener('keydown', (e) => {
+    if (e.code === 'ArrowDown' || e.code === 'KeyS') {
+      e.preventDefault();
+      allButtons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex + 1) % allButtons.length;
+      allButtons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'ArrowUp' || e.code === 'KeyW') {
+      e.preventDefault();
+      allButtons[selectedIndex].classList.remove('selected');
+      selectedIndex = (selectedIndex - 1 + allButtons.length) % allButtons.length;
+      allButtons[selectedIndex].classList.add('selected');
+    }
+    if (e.code === 'Enter' || e.code === 'Space') {
+      e.preventDefault();
+      allButtons[selectedIndex].click();
+    }
+  });
+
+  allButtons[0].classList.add('selected');
+}
+
+function createMenuButton(text, index) {
+  const btn = document.createElement('button');
+  btn.className = 'menu-button';
+  btn.textContent = text;
+  btn.dataset.index = index;
+  return btn;
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderTitleScreen, createMenuButton };
+}
\ No newline at end of file
diff --git a/src/rendering/draw-bosses.js b/src/rendering/draw-bosses.js
new file mode 100644
index 0000000..d8933f6
--- /dev/null
+++ b/src/rendering/draw-bosses.js
@@ -0,0 +1,261 @@
+'use strict';
+
+// === BOSS DRAWING ===
+
+function renderBoss(boss) {
+  if (!boss) return;
+  const px = boss.x * TILE;
+  const py = boss.y * TILE;
+  const isHit = boss.hitTimer > 0;
+
+  ctx.save();
+
+  if (isHit) {
+    ctx.globalAlpha = 0.5 + Math.sin(Date.now() * 0.02) * 0.5;
+  }
+
+  // Boss is drawn larger (2x2 tiles)
+  const def = BOSS_TYPES.find(b => b.id === boss.id || b.name === boss.name);
+  if (def && def.drawFunction && typeof window[def.drawFunction] === 'function') {
+    window[def.drawFunction](ctx, px, py, boss, isHit);
+  } else {
+    drawGenericBoss(ctx, px, py, boss, isHit);
+  }
+
+  // Boss HP bar (wider, at top of screen)
+  const barW = 200;
+  const barH = 8;
+  const barX = (CANVAS_W - barW) / 2;
+  const barY = 4;
+  const hpRatio = boss.hp / boss.maxHp;
+
+  ctx.fillStyle = '#333333';
+  ctx.fillRect(barX, barY, barW, barH);
+  ctx.fillStyle = hpRatio > 0.5 ? '#00FF00' : hpRatio > 0.25 ? '#FFAA00' : '#FF0000';
+  ctx.fillRect(barX, barY, barW * hpRatio, barH);
+  ctx.strokeStyle = '#555';
+  ctx.lineWidth = 1;
+  ctx.strokeRect(barX, barY, barW, barH);
+
+  // Boss name
+  ctx.fillStyle = '#FFD700';
+  ctx.font = 'bold 10px monospace';
+  ctx.textAlign = 'center';
+  ctx.fillText(boss.name, CANVAS_W / 2, barY + barH + 10);
+  ctx.textAlign = 'left';
+
+  // Phase indicator
+  if (boss.phases && boss.phase > 0) {
+    ctx.fillStyle = '#FF4444';
+    ctx.font = '8px monospace';
+    ctx.textAlign = 'center';
+    ctx.fillText(`Phase ${boss.phase + 1}`, CANVAS_W / 2, barY + barH + 20);
+    ctx.textAlign = 'left';
+  }
+
+  ctx.restore();
+}
+
+function drawGenericBoss(ctx, px, py, boss, isHit) {
+  const size = TILE * 2;
+  const color = isHit ? '#FFFFFF' : (boss.color || '#8B0000');
+
+  // Large body
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.roundRect(px - TILE / 2, py - TILE / 2, size, size, 6);
+  ctx.fill();
+
+  // Details
+  ctx.fillStyle = boss.colorLight || '#CC2222';
+  ctx.beginPath();
+  ctx.roundRect(px - TILE / 2 + 4, py - TILE / 2 + 4, size - 8, size * 0.4, 4);
+  ctx.fill();
+
+  // Eyes
+  ctx.fillStyle = boss.eyeColor || '#FFD700';
+  ctx.beginPath();
+  ctx.arc(px - 6, py - 4, 4, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + 6, py - 4, 4, 0, Math.PI * 2);
+  ctx.fill();
+
+  ctx.fillStyle = '#000';
+  ctx.beginPath();
+  ctx.arc(px - 6, py - 4, 2, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + 6, py - 4, 2, 0, Math.PI * 2);
+  ctx.fill();
+}
+
+// Specific boss draw functions
+
+function drawGleeok(ctx, px, py, boss, isHit) {
+  const size = TILE * 2;
+  const color = isHit ? '#FFFFFF' : (boss.color || '#2F4F4F');
+  const heads = boss.heads || 3;
+  const aliveHeads = boss.aliveHeads || heads;
+
+  // Body
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.ellipse(px, py, size * 0.45, size * 0.35, 0, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Scales pattern
+  ctx.fillStyle = boss.colorLight || '#3F5F5F';
+  for (let i = 0; i < 6; i++) {
+    const angle = (i / 6) * Math.PI * 2;
+    ctx.beginPath();
+    ctx.ellipse(px + Math.cos(angle) * 12, py + Math.sin(angle) * 8, 4, 3, angle, 0, Math.PI * 2);
+    ctx.fill();
+  }
+
+  // Heads
+  for (let i = 0; i < heads; i++) {
+    const angle = (i / heads) * Math.PI * 2 - Math.PI / 2;
+    const hx = px + Math.cos(angle) * 24;
+    const hy = py + Math.sin(angle) * 18 - 8;
+    const alive = i < aliveHeads;
+
+    if (!alive) {
+      ctx.fillStyle = '#333';
+      ctx.beginPath();
+      ctx.arc(hx, hy, 5, 0, Math.PI * 2);
+      ctx.fill();
+      continue;
+    }
+
+    const headBob = Math.sin(Date.now() * 0.005 + i) * 2;
+
+    ctx.fillStyle = boss.headColor || '#006400';
+    ctx.beginPath();
+    ctx.ellipse(hx, hy + headBob, 6, 5, 0, 0, Math.PI * 2);
+    ctx.fill();
+
+    // Eyes
+    ctx.fillStyle = '#FFD700';
+    ctx.beginPath();
+    ctx.arc(hx - 2, hy + headBob, 1.5, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.beginPath();
+    ctx.arc(hx + 2, hy + headBob, 1.5, 0, Math.PI * 2);
+    ctx.fill();
+
+    // Fire breath
+    if (boss.attacking && i < aliveHeads) {
+      ctx.fillStyle = '#FF4500';
+      const dirX = Math.cos(angle);
+      const dirY = Math.sin(angle);
+      ctx.beginPath();
+      ctx.moveTo(hx + dirX * 6, hy + headBob + dirY * 6);
+      ctx.lineTo(hx + dirX * 14, hy + headBob + dirY * 14);
+      ctx.lineTo(hx + dirX * 6 + dirY * 3, hy + headBob + dirY * 6 - dirX * 3);
+      ctx.closePath();
+      ctx.fill();
+    }
+  }
+}
+
+function drawDarknut(ctx, px, py, boss, isHit) {
+  const size = TILE * 2;
+  const color = isHit ? '#FFFFFF' : (boss.color || '#708090');
+  const armorBroken = boss.armorBroken || 0;
+
+  // Armor body
+  ctx.fillStyle = color;
+  ctx.fillRect(px - 10, py - 12, 20, 28);
+
+  // Helmet
+  ctx.fillStyle = isHit ? '#FFFFFF' : '#606060';
+  ctx.beginPath();
+  ctx.arc(px, py - 8, 8, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Visor
+  ctx.fillStyle = boss.eyeColor || '#FF0000';
+  ctx.fillRect(px - 5, py - 10, 10, 3);
+
+  // Armor plates (break with phases)
+  ctx.fillStyle = isHit ? '#FFFFFF' : '#808080';
+  if (armorBroken < 1) {
+    ctx.fillRect(px - 12, py - 4, 24, 6); // Chest plate
+  }
+  if (armorBroken < 2) {
+    ctx.fillRect(px - 12, py + 8, 24, 6); // Waist plate
+  }
+
+  // Weapon (two-handed)
+  ctx.fillStyle = '#C0C0C0';
+  ctx.fillRect(px + 12, py - 16, 3, 32);
+  ctx.fillStyle = '#8B4513';
+  ctx.fillRect(px + 10, py + 6, 7, 4);
+
+  // Speed increases with armor broken
+  if (armorBroken > 0) {
+    ctx.fillStyle = 'rgba(255,0,0,0.2)';
+    ctx.fillRect(px - 14, py - 14, 28, 32);
+  }
+}
+
+function drawWizzrobe(ctx, px, py, boss, isHit) {
+  const robeColor = isHit ? '#FFFFFF' : (boss.color || '#4B0082');
+  const teleporting = boss.teleporting || false;
+
+  if (teleporting) {
+    ctx.globalAlpha = 0.3 + Math.sin(Date.now() * 0.05) * 0.3;
+  }
+
+  // Robe
+  ctx.fillStyle = robeColor;
+  ctx.beginPath();
+  ctx.moveTo(px, py - 14);
+  ctx.lineTo(px - 10, py + 16);
+  ctx.lineTo(px + 10, py + 16);
+  ctx.closePath();
+  ctx.fill();
+
+  // Hood
+  ctx.beginPath();
+  ctx.arc(px, py - 10, 8, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Face opening
+  ctx.fillStyle = '#FFD700';
+  ctx.beginPath();
+  ctx.arc(px, py - 10, 4, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Eyes
+  ctx.fillStyle = '#FF00FF';
+  ctx.beginPath();
+  ctx.arc(px - 2, py - 11, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + 2, py - 11, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Magic orb
+  if (boss.castSpell) {
+    ctx.fillStyle = '#FF00FF';
+    ctx.globalAlpha = 0.7;
+    ctx.beginPath();
+    ctx.arc(px + 14, py - 4, 4, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.globalAlpha = 1;
+  }
+}
+
+// Register boss draw functions
+const BOSS_DRAW_FUNCTIONS = {
+  gleeok: drawGleeok,
+  darknut: drawDarknut,
+  wizzrobe: drawWizzrobe,
+  generic: drawGenericBoss,
+};
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderBoss, drawGenericBoss, drawGleeok, drawDarknut, drawWizzrobe };
+}
\ No newline at end of file
diff --git a/src/rendering/draw-enemies.js b/src/rendering/draw-enemies.js
new file mode 100644
index 0000000..b5ba176
--- /dev/null
+++ b/src/rendering/draw-enemies.js
@@ -0,0 +1,362 @@
+'use strict';
+
+// === ENEMY DRAWING FUNCTIONS ===
+
+function renderEnemies() {
+  for (const enemy of gameState.enemies) {
+    drawEnemy(enemy);
+  }
+}
+
+function drawEnemy(enemy) {
+  const px = enemy.x * TILE;
+  const py = enemy.y * TILE;
+  const isHit = enemy.hitTimer > 0;
+  const isStunned = enemy.stunned;
+  const isFrozen = enemy.frozen;
+  const isOnFire = enemy.onFire;
+
+  ctx.save();
+
+  if (isHit) {
+    ctx.globalAlpha = 0.5 + Math.sin(Date.now() * 0.02) * 0.5;
+  }
+  if (isStunned) {
+    ctx.globalAlpha = 0.6;
+  }
+  if (isFrozen) {
+    ctx.filter = 'hue-rotate(180deg) brightness(1.2)';
+  }
+  if (isOnFire) {
+    ctx.filter = 'saturate(2) hue-rotate(-30deg)';
+  }
+
+  // Draw based on enemy type
+  const def = ENEMY_TYPES.find(e => e.id === enemy.id || e.name === enemy.name);
+  if (def && def.drawFunction && typeof window[def.drawFunction] === 'function') {
+    window[def.drawFunction](ctx, px, py, enemy, isHit);
+  } else {
+    // Default goblin-style drawing
+    const bodyColor = isHit ? '#FFFFFF' : (enemy.color || COLORS.goblin);
+    ctx.fillStyle = bodyColor;
+    ctx.beginPath();
+    ctx.roundRect(px + 3, py + 4, TILE - 6, TILE - 8, 3);
+    ctx.fill();
+
+    ctx.fillStyle = enemy.colorLight || COLORS.goblinLight;
+    ctx.beginPath();
+    ctx.roundRect(px + 4, py + 5, (TILE - 6) * 0.6, (TILE - 8) * 0.4, 2);
+    ctx.fill();
+
+    ctx.fillStyle = enemy.eyeColor || COLORS.goblinEye;
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 - 4, py + 10, 2.5, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 + 4, py + 10, 2.5, 0, Math.PI * 2);
+    ctx.fill();
+
+    ctx.fillStyle = '#000';
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 - 4, py + 10, 1.2, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2 + 4, py + 10, 1.2, 0, Math.PI * 2);
+    ctx.fill();
+  }
+
+  // HP bar
+  const barW = TILE - 4;
+  const hpRatio = enemy.hp / enemy.maxHp;
+  ctx.fillStyle = '#333333';
+  ctx.fillRect(px + 2, py - 4, barW, 4);
+  ctx.fillStyle = hpRatio > 0.5 ? '#00FF00' : hpRatio > 0.25 ? '#FFAA00' : '#FF0000';
+  ctx.fillRect(px + 2, py - 4, barW * hpRatio, 4);
+
+  // Stun indicator
+  if (isStunned) {
+    ctx.fillStyle = '#FFFF00';
+    ctx.font = '8px monospace';
+    ctx.textAlign = 'center';
+    ctx.fillText('?', px + TILE / 2, py - 6);
+    ctx.textAlign = 'left';
+  }
+
+  // Freeze indicator
+  if (isFrozen) {
+    ctx.fillStyle = '#00BFFF';
+    ctx.font = '8px monospace';
+    ctx.textAlign = 'center';
+    ctx.fillText('❄', px + TILE / 2, py - 6);
+    ctx.textAlign = 'left';
+  }
+
+  ctx.restore();
+}
+
+// Individual enemy draw functions
+
+function drawSlime(ctx, px, py, enemy, isHit) {
+  const bounce = Math.sin(Date.now() * 0.008 + enemy.x * 2) * 2;
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#00CC44');
+
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.ellipse(px + TILE / 2, py + TILE / 2 + bounce, TILE * 0.35, TILE * 0.25, 0, 0, Math.PI * 2);
+  ctx.fill();
+
+  ctx.fillStyle = isHit ? '#FFFFFF' : '#00FF66';
+  ctx.beginPath();
+  ctx.ellipse(px + TILE / 2, py + TILE / 2 + bounce - 2, TILE * 0.15, TILE * 0.1, 0, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Eyes
+  ctx.fillStyle = '#000';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 3, py + TILE / 2 + bounce, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 3, py + TILE / 2 + bounce, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+}
+
+function drawKeese(ctx, px, py, enemy, isHit) {
+  const flap = Math.sin(Date.now() * 0.015 + enemy.x * 3) * 3;
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#4A3040');
+
+  // Body
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.ellipse(px + TILE / 2, py + TILE / 2 + flap, TILE * 0.2, TILE * 0.15, 0, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Wings
+  ctx.fillStyle = isHit ? '#FFFFFF' : '#3A2030';
+  ctx.beginPath();
+  ctx.ellipse(px + TILE / 2 - 8, py + TILE / 2 + flap, 8, 4, -0.3, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.ellipse(px + TILE / 2 + 8, py + TILE / 2 + flap, 8, 4, 0.3, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Eyes
+  ctx.fillStyle = enemy.eyeColor || '#FF0000';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 2, py + TILE / 2 + flap, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 2, py + TILE / 2 + flap, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+}
+
+function drawOctorok(ctx, px, py, enemy, isHit) {
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#8B008B');
+
+  // Body
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2, py + TILE / 2, TILE * 0.35, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Legs
+  ctx.fillStyle = isHit ? '#FFFFFF' : (enemy.colorLight || '#A020A0');
+  for (let i = 0; i < 8; i++) {
+    const angle = (i / 8) * Math.PI * 2 + Date.now() * 0.001;
+    const lx = px + TILE / 2 + Math.cos(angle) * TILE * 0.4;
+    const ly = py + TILE / 2 + Math.sin(angle) * TILE * 0.4;
+    ctx.fillRect(lx - 1, ly - 1, 3, 3);
+  }
+
+  // Eyes
+  ctx.fillStyle = enemy.eyeColor || '#FFFF00';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 4, py + TILE / 2 - 2, 2.5, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 4, py + TILE / 2 - 2, 2.5, 0, Math.PI * 2);
+  ctx.fill();
+
+  ctx.fillStyle = '#000';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 4, py + TILE / 2 - 2, 1, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 4, py + TILE / 2 - 2, 1, 0, Math.PI * 2);
+  ctx.fill();
+}
+
+function drawMoblin(ctx, px, py, enemy, isHit) {
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#2F4F2F');
+
+  // Body (larger than goblin)
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.roundRect(px + 2, py + 2, TILE - 4, TILE - 4, 4);
+  ctx.fill();
+
+  ctx.fillStyle = enemy.colorLight || '#3F5F3F';
+  ctx.beginPath();
+  ctx.roundRect(px + 3, py + 3, (TILE - 4) * 0.5, (TILE - 4) * 0.4, 2);
+  ctx.fill();
+
+  // Snout
+  ctx.fillStyle = isHit ? '#FFFFFF' : '#5F3F1F';
+  ctx.fillRect(px + TILE / 2 - 3, py + 14, 6, 6);
+
+  // Eyes
+  ctx.fillStyle = enemy.eyeColor || '#FF4400';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 5, py + 8, 2.5, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 5, py + 8, 2.5, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Spear
+  ctx.fillStyle = '#8B4513';
+  ctx.fillRect(px + TILE - 4, py + 6, 2, TILE - 10);
+  ctx.fillStyle = '#808080';
+  ctx.fillRect(px + TILE - 6, py + 4, 6, 4);
+}
+
+function drawStalfos(ctx, px, py, enemy, isHit) {
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#E8E8E8');
+
+  // Skeleton body
+  ctx.fillStyle = color;
+  ctx.fillRect(px + TILE / 2 - 2, py + 4, 4, TILE - 10);
+
+  // Skull
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2, py + 6, 5, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Eye sockets
+  ctx.fillStyle = '#000';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 2, py + 5, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 2, py + 5, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Eye glow
+  ctx.fillStyle = enemy.eyeColor || '#FF0000';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 2, py + 5, 0.8, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 2, py + 5, 0.8, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Arms
+  ctx.fillStyle = color;
+  ctx.fillRect(px + 2, py + 10, TILE - 4, 2);
+
+  // Sword
+  ctx.fillStyle = '#C0C0C0';
+  ctx.fillRect(px + TILE - 4, py + 4, 2, 12);
+}
+
+function drawGoriya(ctx, px, py, enemy, isHit) {
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#4169AA');
+
+  // Body
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.roundRect(px + 3, py + 4, TILE - 6, TILE - 8, 3);
+  ctx.fill();
+
+  // Mask
+  ctx.fillStyle = enemy.colorLight || '#5F9EA0';
+  ctx.fillRect(px + TILE / 2 - 5, py + 6, 10, 8);
+
+  // Eyes
+  ctx.fillStyle = enemy.eyeColor || '#FFFF00';
+  ctx.fillRect(px + TILE / 2 - 3, py + 8, 2, 2);
+  ctx.fillRect(px + TILE / 2 + 1, py + 8, 2, 2);
+
+  // Boomerang
+  ctx.fillStyle = '#DAA520';
+  ctx.beginPath();
+  ctx.arc(px + TILE - 2, py + 10, 4, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.fillStyle = '#B8860B';
+  ctx.fillRect(px + TILE - 4, py + 8, 2, 6);
+}
+
+function drawArmos(ctx, px, py, enemy, isHit) {
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#DAA520');
+  const activated = enemy.activated || false;
+
+  // Statue body
+  ctx.fillStyle = activated ? '#FFD700' : color;
+  ctx.fillRect(px + 4, py + 2, TILE - 8, TILE - 4);
+
+  // Triangle eyes
+  ctx.fillStyle = activated ? '#FF0000' : '#B8860B';
+  ctx.beginPath();
+  ctx.moveTo(px + TILE / 2 - 4, py + 8);
+  ctx.lineTo(px + TILE / 2 - 2, py + 12);
+  ctx.lineTo(px + TILE / 2 - 6, py + 12);
+  ctx.closePath();
+  ctx.fill();
+
+  ctx.beginPath();
+  ctx.moveTo(px + TILE / 2 + 4, py + 8);
+  ctx.lineTo(px + TILE / 2 + 2, py + 12);
+  ctx.lineTo(px + TILE / 2 + 6, py + 12);
+  ctx.closePath();
+  ctx.fill();
+
+  // Sword
+  ctx.fillStyle = '#C0C0C0';
+  ctx.fillRect(px + TILE - 2, py + 4, 2, 10);
+}
+
+function drawLynel(ctx, px, py, enemy, isHit) {
+  const color = isHit ? '#FFFFFF' : (enemy.color || '#8B0000');
+
+  // Large body
+  ctx.fillStyle = color;
+  ctx.beginPath();
+  ctx.roundRect(px, py + 2, TILE, TILE - 4, 4);
+  ctx.fill();
+
+  // Mane
+  ctx.fillStyle = enemy.colorLight || '#CC2222';
+  ctx.fillRect(px + 2, py + 2, TILE - 4, 6);
+
+  // Eyes
+  ctx.fillStyle = enemy.eyeColor || '#FFD700';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 5, py + 8, 3, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 5, py + 8, 3, 0, Math.PI * 2);
+  ctx.fill();
+
+  ctx.fillStyle = '#000';
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 - 5, py + 8, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2 + 5, py + 8, 1.5, 0, Math.PI * 2);
+  ctx.fill();
+}
+
+// Register draw functions
+const ENEMY_DRAW_FUNCTIONS = {
+  slime: drawSlime,
+  keese: drawKeese,
+  octorok: drawOctorok,
+  moblin: drawMoblin,
+  stalfos: drawStalfos,
+  goriya: drawGoriya,
+  armos: drawArmos,
+  lynel: drawLynel,
+};
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderEnemies, drawEnemy, drawSlime, drawKeese, drawOctorok, drawMoblin, drawStalfos, drawGoriya, drawArmos, drawLynel };
+}
\ No newline at end of file
diff --git a/src/rendering/draw-weapons.js b/src/rendering/draw-weapons.js
new file mode 100644
index 0000000..c608a1c
--- /dev/null
+++ b/src/rendering/draw-weapons.js
@@ -0,0 +1,199 @@
+'use strict';
+
+// === WEAPON DRAWING ===
+
+function drawWeaponHeld(weapon, px, py, dir) {
+  const def = WEAPONS.find(w => w.name === weapon.name || w.id === weapon.id);
+  if (!def || !def.drawFunction) return;
+  const drawFn = window[def.drawFunction];
+  if (typeof drawFn !== 'function') return;
+  drawFn(ctx, px, py, dir);
+}
+
+function drawWeaponInHUD(weapon, x, y) {
+  const def = WEAPONS.find(w => w.name === weapon.name || w.id === weapon.id);
+  if (!def || !drawWeaponIcon) return;
+  drawWeaponIcon(ctx, def, x, y);
+}
+
+// Sword
+function drawSwordHeld(ctx, px, py, dir) {
+  ctx.fillStyle = COLORS.swordBlade;
+  const sx = px + TILE / 2 + DIRS[dir].x * 10;
+  const sy = py + TILE / 2 + DIRS[dir].y * 10;
+  ctx.fillRect(sx - 2, sy - 2, 4, 4);
+  ctx.fillStyle = COLORS.swordHandle;
+  const hx = px + TILE / 2 + DIRS[dir].x * 5;
+  const hy = py + TILE / 2 + DIRS[dir].y * 5;
+  ctx.fillRect(hx - 1.5, hy - 1.5, 3, 3);
+}
+
+function drawMasterSwordHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#E8E8FF';
+  const sx = px + TILE / 2 + DIRS[dir].x * 12;
+  const sy = py + TILE / 2 + DIRS[dir].y * 12;
+  ctx.fillRect(sx - 2, sy - 2, 4, 4);
+  // Aura
+  ctx.fillStyle = 'rgba(100,100,255,0.3)';
+  ctx.beginPath();
+  ctx.arc(sx, sy, 6, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.fillStyle = '#DAA520';
+  const hx = px + TILE / 2 + DIRS[dir].x * 5;
+  const hy = py + TILE / 2 + DIRS[dir].y * 5;
+  ctx.fillRect(hx - 2, hy - 2, 4, 4);
+}
+
+// Bow
+function drawBowHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#8B4513';
+  const bx = px + TILE / 2 + DIRS[dir].x * 6;
+  const by = py + TILE / 2 + DIRS[dir].y * 6;
+  ctx.beginPath();
+  if (dir === 0 || dir === 1) {
+    ctx.arc(bx, by, 6, dir === 0 ? -0.8 : 0.8, dir === 0 ? 0.8 : 2.4);
+  } else {
+    ctx.arc(bx, by, 6, dir === 2 ? 0.3 : 2.9, dir === 2 ? 1.1 : 3.7);
+  }
+  ctx.strokeStyle = '#8B4513';
+  ctx.lineWidth = 2;
+  ctx.stroke();
+  // String
+  ctx.strokeStyle = '#FFFFFF';
+  ctx.lineWidth = 1;
+  ctx.beginPath();
+  ctx.moveTo(bx + DIRS[dir].x * 2, by + DIRS[dir].y * 2);
+  ctx.lineTo(bx - DIRS[dir].x * 2, by - DIRS[dir].y * 2);
+  ctx.stroke();
+}
+
+// Boomerang
+function drawBoomerangHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#FFD700';
+  const bx = px + TILE / 2 + DIRS[dir].x * 8;
+  const by = py + TILE / 2 + DIRS[dir].y * 8;
+  ctx.beginPath();
+  ctx.moveTo(bx, by);
+  ctx.lineTo(bx + DIRS[dir].x * 4, by + DIRS[dir].y * 2);
+  ctx.lineTo(bx + DIRS[dir].x * 2, by + DIRS[dir].y * 4);
+  ctx.closePath();
+  ctx.fill();
+}
+
+// Bombs
+function drawBombHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#333';
+  const bx = px + TILE / 2 + DIRS[dir].x * 6;
+  const by = py + TILE / 2 + DIRS[dir].y * 6;
+  ctx.beginPath();
+  ctx.arc(bx, by, 4, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.fillStyle = '#FF0000';
+  ctx.fillRect(bx - 1, by - 6, 2, 3);
+}
+
+// Hammer
+function drawHammerHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#8B4513';
+  const hx = px + TILE / 2 + DIRS[dir].x * 8;
+  const hy = py + TILE / 2 + DIRS[dir].y * 8;
+  ctx.fillRect(hx - 1, hy - 1, 3, 10);
+  ctx.fillStyle = '#666';
+  ctx.fillRect(hx - 4, hy - 5, 8, 6);
+}
+
+// Fire Rod
+function drawFireRodHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#8B4513';
+  const rx = px + TILE / 2 + DIRS[dir].x * 6;
+  const ry = py + TILE / 2 + DIRS[dir].y * 6;
+  ctx.fillRect(rx - 1, ry - 1, 3, 8);
+  ctx.fillStyle = '#FFD700';
+  ctx.beginPath();
+  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 3, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.fillStyle = '#FF4500';
+  ctx.beginPath();
+  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 2, 0, Math.PI * 2);
+  ctx.fill();
+}
+
+// Ice Rod
+function drawIceRodHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#8B4513';
+  const rx = px + TILE / 2 + DIRS[dir].x * 6;
+  const ry = py + TILE / 2 + DIRS[dir].y * 6;
+  ctx.fillRect(rx - 1, ry - 1, 3, 8);
+  ctx.fillStyle = '#B0E0E6';
+  ctx.beginPath();
+  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 3, 0, Math.PI * 2);
+  ctx.fill();
+  ctx.fillStyle = '#00BFFF';
+  ctx.beginPath();
+  ctx.arc(rx + DIRS[dir].x * 2, ry + DIRS[dir].y * 2, 2, 0, Math.PI * 2);
+  ctx.fill();
+}
+
+// Slingshot
+function drawSlingshotHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#8B4513';
+  const sx = px + TILE / 2 + DIRS[dir].x * 6;
+  const sy = py + TILE / 2 + DIRS[dir].y * 6;
+  ctx.beginPath();
+  ctx.moveTo(sx - 3, sy);
+  ctx.lineTo(sx, sy - 4);
+  ctx.lineTo(sx + 3, sy);
+  ctx.strokeStyle = '#8B4513';
+  ctx.lineWidth = 2;
+  ctx.stroke();
+  ctx.strokeStyle = '#DEB887';
+  ctx.lineWidth = 1;
+  ctx.beginPath();
+  ctx.moveTo(sx - 3, sy);
+  ctx.lineTo(sx + 3, sy);
+  ctx.stroke();
+}
+
+// Hookshot
+function drawHookshotHeld(ctx, px, py, dir) {
+  ctx.fillStyle = '#C0C0C0';
+  const hx = px + TILE / 2 + DIRS[dir].x * 6;
+  const hy = py + TILE / 2 + DIRS[dir].y * 6;
+  ctx.fillRect(hx - 1, hy - 1, 3, 8);
+  ctx.fillStyle = '#808080';
+  ctx.beginPath();
+  ctx.arc(hx + DIRS[dir].x * 2, hy + DIRS[dir].y * 2, 3, 0, Math.PI);
+  ctx.strokeStyle = '#808080';
+  ctx.lineWidth = 2;
+  ctx.stroke();
+}
+
+// Register weapon draw functions
+const WEAPON_DRAW = {
+  sword: { held: drawSwordHeld },
+  master_sword: { held: drawMasterSwordHeld },
+  bow: { held: drawBowHeld },
+  boomerang: { held: drawBoomerangHeld },
+  bomb: { held: drawBombHeld },
+  hammer: { held: drawHammerHeld },
+  fire_rod: { held: drawFireRodHeld },
+  ice_rod: { held: drawIceRodHeld },
+  slingshot: { held: drawSlingshotHeld },
+  hookshot: { held: drawHookshotHeld },
+};
+
+function drawWeaponIcon(ctx, weapon, x, y) {
+  const drawFn = WEAPON_DRAW[weapon.id];
+  if (drawFn && drawFn.held) {
+    ctx.save();
+    drawFn.held(ctx, x, y, 0);
+    ctx.restore();
+  } else {
+    ctx.fillStyle = weapon.color || '#C0C0C0';
+    ctx.fillRect(x - 3, y - 8, 6, 16);
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { drawWeaponHeld, drawWeaponInHUD, drawSwordHeld, drawMasterSwordHeld, drawBowHeld, drawBoomerangHeld, drawBombHeld, drawHammerHeld, drawFireRodHeld, drawIceRodHeld, drawSlingshotHeld, drawHookshotHeld, drawWeaponIcon };
+}
\ No newline at end of file
diff --git a/src/rendering/effects.js b/src/rendering/effects.js
new file mode 100644
index 0000000..2965574
--- /dev/null
+++ b/src/rendering/effects.js
@@ -0,0 +1,77 @@
+'use strict';
+
+// === PARTICLE EFFECTS ===
+
+function spawnParticles(x, y, color, count) {
+  if (!gameState.particles) gameState.particles = [];
+  if (gameState.particles.length > MAX_PARTICLES) {
+    gameState.particles.splice(0, gameState.particles.length - MAX_PARTICLES + count);
+  }
+
+  for (let i = 0; i < count; i++) {
+    const angle = Math.random() * Math.PI * 2;
+    const speed = 1 + Math.random() * 3;
+    gameState.particles.push({
+      x: x,
+      y: y,
+      vx: Math.cos(angle) * speed,
+      vy: Math.sin(angle) * speed - 1,
+      gravity: 0.05,
+      color: color,
+      size: 1 + Math.random() * 2,
+      life: 300 + Math.random() * 400,
+      maxLife: 700,
+      maxAlpha: 0.8 + Math.random() * 0.2,
+      alpha: 1,
+    });
+  }
+}
+
+function spawnHitParticles(x, y) {
+  spawnParticles(x, y, '#FF0000', 4);
+}
+
+function spawnDefeatParticles(x, y) {
+  spawnParticles(x, y, '#FFD700', 12);
+  spawnParticles(x, y, '#FFFFFF', 6);
+}
+
+function spawnExplosionParticles(x, y) {
+  spawnParticles(x, y, '#FF4500', 15);
+  spawnParticles(x, y, '#FFD700', 8);
+  spawnParticles(x, y, '#FFFFFF', 4);
+}
+
+function renderParticles() {
+  if (!gameState.particles) return;
+  for (const p of gameState.particles) {
+    ctx.save();
+    ctx.globalAlpha = p.alpha;
+    ctx.fillStyle = p.color;
+    ctx.beginPath();
+    ctx.arc(p.x, p.y, p.size, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.restore();
+  }
+}
+
+// Draw projectiles
+function renderProjectiles() {
+  if (!gameState.projectiles) return;
+  for (const p of gameState.projectiles) {
+    ctx.fillStyle = p.color || '#FFFF00';
+    ctx.beginPath();
+    ctx.arc(p.x * TILE + TILE / 2, p.y * TILE + TILE / 2, 4, 0, Math.PI * 2);
+    ctx.fill();
+
+    // Trail
+    ctx.fillStyle = (p.color || '#FFFF00') + '40';
+    ctx.beginPath();
+    ctx.arc(p.x * TILE + TILE / 2 - p.dir.x * 6, p.y * TILE + TILE / 2 - p.dir.y * 6, 3, 0, Math.PI * 2);
+    ctx.fill();
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { spawnParticles, spawnHitParticles, spawnDefeatParticles, spawnExplosionParticles, renderParticles, renderProjectiles };
+}
\ No newline at end of file
diff --git a/src/rendering/hud.js b/src/rendering/hud.js
new file mode 100644
index 0000000..ae48998
--- /dev/null
+++ b/src/rendering/hud.js
@@ -0,0 +1,107 @@
+'use strict';
+
+// === HUD RENDERING ===
+
+function renderHUD() {
+  // Hearts
+  const totalHearts = Math.ceil(gameState.player.maxHp / 2);
+  const fullHearts = Math.floor(gameState.player.hp / 2);
+  const halfHeart = gameState.player.hp % 2 === 1;
+
+  for (let i = 0; i < totalHearts; i++) {
+    const hx = 12 + i * 22;
+    const hy = 12;
+    drawHeart(ctx, hx, hy, 14, i < fullHearts);
+    if (i === fullHearts && halfHeart) {
+      ctx.save();
+      ctx.beginPath();
+      ctx.rect(hx - 7, hy - 7, 14, 14);
+      ctx.clip();
+      drawHeart(ctx, hx, hy, 14, true);
+      ctx.restore();
+    }
+  }
+
+  // Active weapon icon
+  if (gameState.player.activeWeapon) {
+    drawWeaponIcon(ctx, gameState.player.activeWeapon, CANVAS_W - 24, 14);
+  }
+
+  // Ammo counts
+  if (gameState.player.arrows > 0) {
+    ctx.fillStyle = '#8B4513';
+    ctx.fillRect(CANVAS_W - 50, 10, 2, 12);
+    ctx.fillStyle = '#808080';
+    ctx.fillRect(CANVAS_W - 52, 10, 6, 3);
+    ctx.fillStyle = '#FFFFFF';
+    ctx.font = '9px monospace';
+    ctx.textAlign = 'right';
+    ctx.fillText(gameState.player.arrows, CANVAS_W - 54, 22);
+    ctx.textAlign = 'left';
+  }
+
+  if (gameState.player.bombs > 0) {
+    ctx.fillStyle = '#333';
+    ctx.beginPath();
+    ctx.arc(CANVAS_W - 38, 14, 3, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#FFFFFF';
+    ctx.font = '9px monospace';
+    ctx.textAlign = 'right';
+    ctx.fillText(gameState.player.bombs, CANVAS_W - 42, 22);
+    ctx.textAlign = 'left';
+  }
+
+  if (gameState.player.keys > 0) {
+    ctx.fillStyle = '#FFD700';
+    ctx.beginPath();
+    ctx.arc(CANVAS_W - 30, 30, 3, 0, Math.PI * 2);
+    ctx.fill();
+    ctx.fillStyle = '#FFFFFF';
+    ctx.font = '9px monospace';
+    ctx.textAlign = 'right';
+    ctx.fillText(gameState.player.keys, CANVAS_W - 34, 38);
+    ctx.textAlign = 'left';
+  }
+
+  // Weapon inventory (bottom right)
+  if (gameState.player.weapons.length > 1) {
+    let wx = CANVAS_W - 16;
+    for (let i = gameState.player.weapons.length - 1; i >= 0; i--) {
+      const w = gameState.player.weapons[i];
+      const isActive = w === gameState.player.activeWeapon;
+      ctx.fillStyle = isActive ? '#FFD700' : '#555';
+      ctx.fillRect(wx - 10, CANVAS_H - 20, 12, 16);
+      ctx.strokeStyle = isActive ? '#FFD700' : '#333';
+      ctx.lineWidth = isActive ? 1.5 : 0.5;
+      ctx.strokeRect(wx - 10, CANVAS_H - 20, 12, 16);
+      drawWeaponIcon(ctx, w, wx - 4, CANVAS_H - 12);
+      wx -= 14;
+    }
+  }
+
+  // Room name / dungeon info
+  const dungeon = DUNGEONS[gameState.currentDungeon];
+  if (dungeon) {
+    ctx.fillStyle = '#CCCCCC';
+    ctx.font = '12px monospace';
+    ctx.textAlign = 'center';
+    ctx.fillText(`${dungeon.name} - Room ${gameState.currentRoomIdx + 1}/${gameState.dungeonRooms ? gameState.dungeonRooms.length : '?'}`, CANVAS_W / 2, CANVAS_H - 8);
+    ctx.textAlign = 'left';
+  }
+
+  // Controls hint (fades out)
+  if (gameState.messageTimer <= 0 && gameState.currentRoomIdx === 0) {
+    ctx.fillStyle = 'rgba(0,0,0,0.5)';
+    ctx.fillRect(CANVAS_W / 2 - 100, CANVAS_H - 28, 200, 18);
+    ctx.fillStyle = '#888';
+    ctx.font = '10px monospace';
+    ctx.textAlign = 'center';
+    ctx.fillText('Arrows/WASD: Move  Space: Attack  E: Interact  X: Switch', CANVAS_W / 2, CANVAS_H - 15);
+    ctx.textAlign = 'left';
+  }
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderHUD };
+}
\ No newline at end of file
diff --git a/src/rendering/renderer.js b/src/rendering/renderer.js
new file mode 100644
index 0000000..9dd5a1c
--- /dev/null
+++ b/src/rendering/renderer.js
@@ -0,0 +1,559 @@
+'use strict';
+
+// === MAIN RENDERER ===
+// Draws the game world: floor, walls, torches, doors, etc.
+
+function renderFloor(theme) {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (gameState.layout[y][x] === TILE_TYPES.FLOOR) {
+        const shade = ((x + y) % 2 === 0) ? (theme.floorColor || COLORS.floor) : (theme.floorDarkColor || COLORS.floorDark);
+        ctx.fillStyle = shade;
+        ctx.fillRect(x * TILE, y * TILE, TILE, TILE);
+      }
+    }
+  }
+}
+
+function renderWalls(theme) {
+  const wc = getWallColors(theme);
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (gameState.layout[y][x] === TILE_TYPES.WALL) {
+        const px = x * TILE;
+        const py = y * TILE;
+
+        ctx.fillStyle = wc.wall;
+        ctx.fillRect(px, py, TILE, TILE);
+
+        ctx.fillStyle = wc.top;
+        ctx.fillRect(px, py, TILE, 3);
+
+        ctx.fillStyle = wc.front;
+        ctx.fillRect(px, py + 3, TILE, TILE - 6);
+
+        ctx.fillStyle = wc.bottom;
+        ctx.fillRect(px, py + TILE - 3, TILE, 3);
+
+        ctx.strokeStyle = theme.wallBorderColor || '#404040';
+        ctx.lineWidth = 0.5;
+        ctx.strokeRect(px + 0.5, py + 0.5, TILE - 1, TILE - 1);
+      }
+    }
+  }
+}
+
+function renderTorches(theme) {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (gameState.layout[y][x] === TILE_TYPES.TORCH) {
+        const cx = x * TILE + TILE / 2;
+        const cy = y * TILE + TILE / 2;
+
+        // Glow
+        ctx.fillStyle = theme.torchGlow || COLORS.torchGlow;
+        ctx.beginPath();
+        ctx.arc(cx, cy, TILE * 1.2, 0, Math.PI * 2);
+        ctx.fill();
+
+        // Floor tile under torch
+        ctx.fillStyle = theme.floorColor || COLORS.floor;
+        ctx.fillRect(x * TILE, y * TILE, TILE, TILE);
+
+        // Stick
+        ctx.fillStyle = theme.torchStickColor || COLORS.torchStick;
+        ctx.fillRect(cx - 2, cy + 2, 4, TILE * 0.4);
+
+        // Flame
+        ctx.fillStyle = theme.torchFlameColor || COLORS.torchFlame;
+        ctx.beginPath();
+        ctx.ellipse(cx, cy - 4, 4, 6, 0, 0, Math.PI * 2);
+        ctx.fill();
+
+        // Flame core
+        ctx.fillStyle = theme.torchCoreColor || '#FFFF00';
+        ctx.beginPath();
+        ctx.ellipse(cx, cy - 3, 2, 3, 0, 0, Math.PI * 2);
+        ctx.fill();
+      }
+    }
+  }
+}
+
+function renderDoors(theme) {
+  for (const door of gameState.doors) {
+    const px = door.x * TILE;
+    const py = door.y * TILE;
+
+    ctx.fillStyle = COLORS.doorFrame;
+    ctx.fillRect(px - 1, py - 1, TILE + 2, TILE + 2);
+
+    if (door.opened) {
+      ctx.fillStyle = (theme && theme.floorColor) || COLORS.floor;
+      ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+    } else {
+      ctx.fillStyle = COLORS.door;
+      ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+
+      ctx.strokeStyle = '#8B7355';
+      ctx.lineWidth = 1;
+      ctx.strokeRect(px + 2, py + 2, TILE - 4, TILE - 4);
+
+      ctx.fillStyle = COLORS.doorKnob;
+      ctx.beginPath();
+      const knobX = door.dir === 3 ? px + TILE - 7 : px + 7;
+      ctx.arc(knobX, py + TILE / 2, 3, 0, Math.PI * 2);
+      ctx.fill();
+    }
+  }
+}
+
+function renderSoftwalls() {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (gameState.layout[y][x] === TILE_TYPES.SOFTWALL) {
+        const px = x * TILE;
+        const py = y * TILE;
+
+        ctx.fillStyle = COLORS.softwall;
+        ctx.fillRect(px, py, TILE, TILE);
+
+        ctx.fillStyle = COLORS.softwallDark;
+        ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+
+        // Crack pattern
+        ctx.strokeStyle = '#3A2818';
+        ctx.lineWidth = 1;
+        ctx.beginPath();
+        ctx.moveTo(px + 4, py + 4);
+        ctx.lineTo(px + TILE / 2, py + TILE / 2);
+        ctx.lineTo(px + TILE - 4, py + 6);
+        ctx.stroke();
+      }
+    }
+  }
+}
+
+function renderLava() {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (gameState.layout[y][x] === TILE_TYPES.LAVA) {
+        const px = x * TILE;
+        const py = y * TILE;
+        const t = Date.now() * 0.003;
+
+        ctx.fillStyle = COLORS.lava;
+        ctx.fillRect(px, py, TILE, TILE);
+
+        ctx.fillStyle = COLORS.lavaLight;
+        const offset = Math.sin(t + x * 0.5 + y * 0.3) * 3;
+        ctx.fillRect(px + 4 + offset, py + 6, TILE - 8, TILE - 10);
+
+        // Bubbles
+        ctx.fillStyle = '#FF6347';
+        ctx.beginPath();
+        const bx = px + TILE / 2 + Math.sin(t * 1.5 + x) * 4;
+        const by = py + TILE / 2 + Math.cos(t * 1.2 + y) * 3;
+        ctx.arc(bx, by, 2, 0, Math.PI * 2);
+        ctx.fill();
+      }
+    }
+  }
+}
+
+function renderWater() {
+  for (let y = 0; y < ROWS; y++) {
+    for (let x = 0; x < COLS; x++) {
+      if (gameState.layout[y][x] === TILE_TYPES.WATER) {
+        const px = x * TILE;
+        const py = y * TILE;
+        const t = Date.now() * 0.002;
+
+        ctx.fillStyle = COLORS.water;
+        ctx.fillRect(px, py, TILE, TILE);
+
+        ctx.fillStyle = COLORS.waterLight;
+        const offset = Math.sin(t + x * 0.8 + y * 0.4) * 2;
+        ctx.fillRect(px + 3 + offset, py + 8, TILE - 6, 3);
+        ctx.fillRect(px + 6 - offset, py + 16, TILE - 10, 2);
+      }
+    }
+  }
+}
+
+function renderTraps() {
+  for (const trap of gameState.traps) {
+    if (trap.triggered) continue;
+    const px = trap.x * TILE;
+    const py = trap.y * TILE;
+
+    // Hidden trap - draw subtle indicator
+    ctx.fillStyle = (trap.color || COLORS.trap) + '40';
+    ctx.fillRect(px + 4, py + 4, TILE - 8, TILE - 8);
+
+    // Spike pattern
+    ctx.fillStyle = trap.color || COLORS.trap;
+    for (let i = 0; i < 3; i++) {
+      for (let j = 0; j < 3; j++) {
+        ctx.beginPath();
+        const sx = px + 6 + i * 9;
+        const sy = py + TILE - 6 - j * 9;
+        ctx.moveTo(sx, sy - 4);
+        ctx.lineTo(sx - 2, sy);
+        ctx.lineTo(sx + 2, sy);
+        ctx.closePath();
+        ctx.fill();
+      }
+    }
+  }
+}
+
+function renderLevers() {
+  for (const lever of gameState.levers) {
+    if (lever.activated) continue;
+    const px = lever.x * TILE;
+    const py = lever.y * TILE;
+
+    // Base
+    ctx.fillStyle = '#666';
+    ctx.fillRect(px + TILE / 2 - 2, py + TILE / 2 - 2, 4, 4);
+
+    // Handle
+    ctx.fillStyle = COLORS.lever;
+    ctx.fillRect(px + TILE / 2 - 1, py + 4, 3, TILE / 2 - 4);
+
+    // Knob
+    ctx.fillStyle = '#DAA520';
+    ctx.beginPath();
+    ctx.arc(px + TILE / 2, py + 4, 3, 0, Math.PI * 2);
+    ctx.fill();
+  }
+}
+
+function renderSwitches() {
+  for (const sw of gameState.switches) {
+    const px = sw.x * TILE;
+    const py = sw.y * TILE;
+
+    if (sw.activated) {
+      ctx.fillStyle = COLORS.switchFloor;
+      ctx.fillRect(px + 4, py + 4, TILE - 8, TILE - 8);
+      ctx.fillStyle = '#00FF00';
+      ctx.beginPath();
+      ctx.arc(px + TILE / 2, py + TILE / 2, 3, 0, Math.PI * 2);
+      ctx.fill();
+    } else {
+      ctx.fillStyle = COLORS.switchFloor;
+      ctx.fillRect(px + 4, py + 4, TILE - 8, TILE - 8);
+      ctx.fillStyle = '#FFD700';
+      ctx.beginPath();
+      ctx.arc(px + TILE / 2, py + TILE / 2, 3, 0, Math.PI * 2);
+      ctx.fill();
+    }
+  }
+}
+
+function renderTargets() {
+  for (const target of gameState.targets) {
+    const cx = target.x * TILE + TILE / 2;
+    const cy = target.y * TILE + TILE / 2;
+    const occupied = gameState.rocks.some(r => r.x === target.x && r.y === target.y);
+
+    ctx.fillStyle = COLORS.targetGlow;
+    ctx.beginPath();
+    ctx.arc(cx, cy, TILE * 0.7, 0, Math.PI * 2);
+    ctx.fill();
+
+    ctx.fillStyle = occupied ? '#00FF00' : COLORS.target;
+    ctx.beginPath();
+    ctx.arc(cx, cy, TILE * 0.3, 0, Math.PI * 2);
+    ctx.fill();
+
+    ctx.strokeStyle = occupied ? '#00AA00' : '#CC9900';
+    ctx.lineWidth = 1.5;
+    ctx.beginPath();
+    ctx.arc(cx, cy, TILE * 0.3, 0, Math.PI * 2);
+    ctx.stroke();
+  }
+}
+
+function renderRocks() {
+  for (const rock of gameState.rocks) {
+    const px = rock.x * TILE;
+    const py = rock.y * TILE;
+    const inset = 3;
+
+    ctx.fillStyle = COLORS.rock;
+    ctx.beginPath();
+    ctx.roundRect(px + inset, py + inset, TILE - inset * 2, TILE - inset * 2, 4);
+    ctx.fill();
+
+    ctx.fillStyle = COLORS.rockLight;
+    ctx.beginPath();
+    ctx.roundRect(px + inset + 1, py + inset + 1, (TILE - inset * 2) * 0.5, (TILE - inset * 2) * 0.4, 2);
+    ctx.fill();
+
+    ctx.fillStyle = COLORS.rockDark;
+    ctx.beginPath();
+    ctx.roundRect(px + inset + (TILE - inset * 2) * 0.4, py + inset + (TILE - inset * 2) * 0.5, (TILE - inset * 2) * 0.4, (TILE - inset * 2) * 0.4, 2);
+    ctx.fill();
+
+    ctx.strokeStyle = '#555555';
+    ctx.lineWidth = 1;
+    ctx.beginPath();
+    ctx.roundRect(px + inset, py + inset, TILE - inset * 2, TILE - inset * 2, 4);
+    ctx.stroke();
+  }
+}
+
+function renderChests() {
+  for (const chest of gameState.chests) {
+    const px = chest.x * TILE;
+    const py = chest.y * TILE;
+
+    if (chest.opened) {
+      ctx.fillStyle = COLORS.chestOpen;
+      ctx.fillRect(px + 2, py + 10, TILE - 4, TILE - 12);
+      ctx.fillStyle = COLORS.chestGold;
+      ctx.fillRect(px + 4, py + 12, TILE - 8, TILE - 14);
+
+      ctx.fillStyle = COLORS.chestClosed;
+      ctx.fillRect(px + 2, py + 2, TILE - 4, 6);
+      ctx.fillStyle = COLORS.chestGold;
+      ctx.fillRect(px + 4, py + 3, TILE - 8, 4);
+    } else {
+      ctx.fillStyle = COLORS.chestClosed;
+      ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+      ctx.fillStyle = COLORS.chestGold;
+      ctx.fillRect(px + 4, py + 4, TILE - 8, TILE - 8);
+
+      ctx.fillStyle = '#FFD700';
+      ctx.beginPath();
+      ctx.arc(px + TILE / 2, py + TILE / 2, 3, 0, Math.PI * 2);
+      ctx.fill();
+
+      ctx.strokeStyle = '#B8860B';
+      ctx.lineWidth = 1;
+      ctx.strokeRect(px + 2, py + 2, TILE - 4, TILE - 4);
+    }
+  }
+}
+
+function renderItems() {
+  for (const item of gameState.floorItems) {
+    if (item.collected) continue;
+    const px = item.x * TILE;
+    const py = item.y * TILE;
+    const def = ITEMS.find(i => i.id === item.id);
+    if (!def) continue;
+
+    const bob = Math.sin(Date.now() * 0.005 + item.x + item.y) * 2;
+
+    if (item.id === 'heart_piece') {
+      drawHeart(ctx, px + TILE / 2, py + TILE / 2 + bob, 10, true);
+    } else if (item.id.startsWith('potion')) {
+      ctx.fillStyle = def.color || '#FF0000';
+      ctx.fillRect(px + 10, py + 8 + bob, 12, 16);
+      ctx.fillStyle = '#FFFFFF';
+      ctx.fillRect(px + 12, py + 6 + bob, 8, 4);
+    } else if (item.id === 'arrows') {
+      ctx.fillStyle = '#8B4513';
+      ctx.fillRect(px + 12, py + 4 + bob, 2, 24);
+      ctx.fillStyle = '#808080';
+      ctx.fillRect(px + 10, py + 4 + bob, 6, 4);
+    } else if (item.id === 'bombs') {
+      ctx.fillStyle = '#333';
+      ctx.beginPath();
+      ctx.arc(px + TILE / 2, py + TILE / 2 + bob, 6, 0, Math.PI * 2);
+      ctx.fill();
+      ctx.fillStyle = '#FF0000';
+      ctx.fillRect(px + TILE / 2 - 1, py + 2 + bob, 2, 4);
+    } else if (item.id === 'key') {
+      ctx.fillStyle = '#FFD700';
+      ctx.beginPath();
+      ctx.arc(px + 10, py + 10 + bob, 4, 0, Math.PI * 2);
+      ctx.fill();
+      ctx.fillRect(px + 14, py + 9 + bob, 10, 3);
+      ctx.fillRect(px + 20, py + 9 + bob, 3, 5);
+    } else {
+      ctx.fillStyle = def.color || '#FFD700';
+      ctx.beginPath();
+      ctx.arc(px + TILE / 2, py + TILE / 2 + bob, 5, 0, Math.PI * 2);
+      ctx.fill();
+    }
+  }
+}
+
+// Draw exit door
+function renderExit() {
+  if (!gameState.exit) return;
+
+  const px = gameState.exit.x * TILE;
+  const py = gameState.exit.y * TILE;
+
+  ctx.fillStyle = COLORS.doorFrame;
+  ctx.fillRect(px - 1, py - 1, TILE + 2, TILE + 2);
+
+  if (gameState.exitOpen) {
+    ctx.fillStyle = '#1A1A1A';
+    ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+  } else {
+    ctx.fillStyle = COLORS.door;
+    ctx.fillRect(px + 2, py + 2, TILE - 4, TILE - 4);
+
+    ctx.strokeStyle = '#8B7355';
+    ctx.lineWidth = 1;
+    ctx.strokeRect(px + 2, py + 2, TILE - 4, TILE - 4);
+
+    ctx.fillStyle = COLORS.doorKnob;
+    ctx.beginPath();
+    const knobX = gameState.exit.dir === 3 ? px + TILE - 7 : px + 7;
+    ctx.arc(knobX, py + TILE / 2, 3, 0, Math.PI * 2);
+    ctx.fill();
+  }
+
+  ctx.fillStyle = '#FFFFFF';
+  ctx.font = 'bold 10px monospace';
+  ctx.textAlign = 'center';
+  const arrowX = gameState.exit.dir === 3 ? px + TILE + 10 : px - 10;
+  ctx.fillText(
+    gameState.exit.dir === 3 ? '\u2192' :
+    gameState.exit.dir === 2 ? '\u2190' :
+    gameState.exit.dir === 0 ? '\u2193' : '\u2191',
+    arrowX, py + TILE / 2 + 4
+  );
+  ctx.textAlign = 'left';
+}
+
+// Draw player character
+function renderPlayer() {
+  const p = gameState.player;
+  const px = p.x * TILE;
+  const py = p.y * TILE;
+  const isHit = p.hitTimer > 0;
+  const isInvincible = p.invincibleTimer > 0;
+
+  ctx.save();
+
+  if (isHit) {
+    ctx.globalAlpha = 0.5 + Math.sin(Date.now() * 0.03) * 0.5;
+  }
+  if (isInvincible) {
+    ctx.globalAlpha = Math.sin(Date.now() * 0.01) > 0 ? 1 : 0.3;
+  }
+
+  const bodyColor = isHit ? '#FF6666' : COLORS.playerBody;
+
+  // Body
+  ctx.fillStyle = bodyColor;
+  ctx.fillRect(px + 6, py + 14, TILE - 12, TILE - 16);
+
+  // Tunic detail
+  ctx.fillStyle = COLORS.playerTunic;
+  ctx.fillRect(px + 8, py + 16, TILE - 16, TILE - 20);
+
+  // Head
+  ctx.fillStyle = COLORS.playerHead;
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2, py + 10, 7, 0, Math.PI * 2);
+  ctx.fill();
+
+  // Hair
+  ctx.fillStyle = COLORS.playerHair;
+  ctx.beginPath();
+  ctx.arc(px + TILE / 2, py + 8, 7, Math.PI, Math.PI * 2);
+  ctx.fill();
+
+  // Eyes
+  ctx.fillStyle = COLORS.playerEyes;
+  const eyeOffX = DIRS[p.dir].x * 2;
+  const eyeOffY = DIRS[p.dir].y * 2;
+  ctx.fillRect(px + TILE / 2 - 3 + eyeOffX, py + 9 + eyeOffY, 2, 2);
+  ctx.fillRect(px + TILE / 2 + 1 + eyeOffX, py + 9 + eyeOffY, 2, 2);
+
+  // Active weapon indicator
+  if (p.activeWeapon) {
+    drawWeaponHeld(p.activeWeapon, px, py, p.dir);
+  } else if (p.weapons.length > 0) {
+    drawWeaponHeld(p.weapons[0], px, py, p.dir);
+  }
+
+  ctx.restore();
+}
+
+// Draw attack animation
+function renderAttackAnim() {
+  const p = gameState.player;
+  if (p.attackAnim <= 0 || !p.activeWeapon) return;
+
+  const px = p.x * TILE;
+  const py = p.y * TILE;
+  const dir = DIRS[p.dir];
+
+  ctx.save();
+  ctx.globalAlpha = p.attackAnim / (p.activeWeapon.animDuration || ATTACK_ANIM);
+
+  const ax = px + TILE / 2 + dir.x * TILE * 0.6;
+  const ay = py + TILE / 2 + dir.y * TILE * 0.6;
+
+  // Weapon-specific attack visual
+  if (p.activeWeapon.type === 'melee') {
+    ctx.fillStyle = p.activeWeapon.attackColor || COLORS.swordBlade;
+    if (dir.x !== 0) {
+      ctx.fillRect(ax - 3, ay - TILE * 0.4, 6, TILE * 0.8);
+    } else {
+      ctx.fillRect(ax - TILE * 0.4, ay - 3, TILE * 0.8, 6);
+    }
+  }
+
+  // Slash effect
+  ctx.strokeStyle = '#FFFFFF';
+  ctx.lineWidth = 2;
+  ctx.globalAlpha = p.attackAnim / (p.activeWeapon.animDuration || ATTACK_ANIM) * 0.7;
+  if (dir.x !== 0) {
+    ctx.beginPath();
+    ctx.moveTo(ax, ay - TILE * 0.5);
+    ctx.lineTo(ax + dir.x * 8, ay);
+    ctx.lineTo(ax, ay + TILE * 0.5);
+    ctx.stroke();
+  } else {
+    ctx.beginPath();
+    ctx.moveTo(ax - TILE * 0.5, ay);
+    ctx.lineTo(ax, ay + dir.y * 8);
+    ctx.lineTo(ax + TILE * 0.5, ay);
+    ctx.stroke();
+  }
+
+  ctx.restore();
+}
+
+// Draw messages
+function renderMessages() {
+  if (gameState.messageTimer <= 0) return;
+
+  ctx.save();
+  ctx.globalAlpha = Math.min(1, gameState.messageTimer / 300);
+
+  ctx.fillStyle = 'rgba(0,0,0,0.7)';
+  const textW = ctx.measureText(gameState.message).width;
+  const boxW = textW + 20;
+  const boxX = (CANVAS_W - boxW) / 2;
+  const boxY = CANVAS_H / 2 - 30;
+  ctx.fillRect(boxX, boxY, boxW, 24);
+
+  ctx.strokeStyle = '#FFD700';
+  ctx.lineWidth = 1;
+  ctx.strokeRect(boxX, boxY, boxW, 24);
+
+  ctx.fillStyle = COLORS.msgText;
+  ctx.font = '14px monospace';
+  ctx.textAlign = 'center';
+  ctx.fillText(gameState.message, CANVAS_W / 2, boxY + 17);
+  ctx.textAlign = 'left';
+
+  ctx.restore();
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { renderFloor, renderWalls, renderTorches, renderDoors, renderSoftwalls, renderLava, renderWater, renderTraps, renderLevers, renderSwitches, renderTargets, renderRocks, renderChests, renderItems, renderExit, renderPlayer, renderAttackAnim, renderMessages };
+}
\ No newline at end of file
diff --git a/src/save/save.js b/src/save/save.js
new file mode 100644
index 0000000..c2e8542
--- /dev/null
+++ b/src/save/save.js
@@ -0,0 +1,120 @@
+'use strict';
+
+// === SAVE SYSTEM ===
+
+const SAVE_KEY = 'zelda_dungeon_save_v1';
+
+let saveData = {
+  completedDungeons: [],
+  weapons: [],
+  heartPieces: 0,
+  totalRoomsCleared: 0,
+  totalEnemiesDefeated: 0,
+  dungeonsBeaten: 0,
+  playTime: 0,
+};
+
+function loadSaveData() {
+  try {
+    const raw = localStorage.getItem(SAVE_KEY);
+    if (raw) {
+      saveData = JSON.parse(raw);
+      console.log('Save loaded:', saveData);
+    }
+  } catch (e) {
+    console.warn('Failed to load save:', e);
+  }
+  // Check for electron API (for Electron builds)
+  if (window.electronAPI && window.electronAPI.loadSave) {
+    try {
+      const electronSave = window.electronAPI.loadSave();
+      if (electronSave) saveData = electronSave;
+    } catch (e) { /* fallback to localStorage */ }
+  }
+}
+
+function saveProgress() {
+  try {
+    localStorage.setItem(SAVE_KEY, JSON.stringify(saveData));
+    console.log('Save written:', saveData);
+  } catch (e) {
+    console.warn('Failed to save:', e);
+  }
+  if (window.electronAPI && window.electronAPI.saveData) {
+    try {
+      window.electronAPI.saveData(saveData);
+    } catch (e) { /* fallback to localStorage */ }
+  }
+}
+
+function markDungeonComplete(dungeonIdx) {
+  if (!saveData.completedDungeons.includes(dungeonIdx)) {
+    saveData.completedDungeons.push(dungeonIdx);
+    saveData.dungeonsBeaten++;
+  }
+}
+
+function addWeapon(name) {
+  if (!saveData.weapons.includes(name)) {
+    saveData.weapons.push(name);
+  }
+}
+
+function addHeartPiece() {
+  saveData.heartPieces++;
+  // Every 4 heart pieces = 1 new heart (2 HP)
+  if (saveData.heartPieces % 4 === 0) {
+    if (gameState && gameState.player) {
+      if (gameState.player.maxHp < MAX_HEARTS * 2) {
+        gameState.player.maxHp += 2;
+        gameState.player.hp = gameState.player.maxHp;
+        showMessage('Heart Container! Max HP increased!');
+      }
+    }
+  }
+}
+
+function addStats(rooms, enemies) {
+  saveData.totalRoomsCleared += rooms;
+  saveData.totalEnemiesDefeated += enemies;
+}
+
+function isDungeonCompleted(dungeonIdx) {
+  return saveData.completedDungeons.includes(dungeonIdx);
+}
+
+function isDungeonUnlocked(dungeonIdx) {
+  if (dungeonIdx === 0) return true;
+  return saveData.completedDungeons.includes(dungeonIdx - 1);
+}
+
+function getSaveSummary() {
+  return {
+    dungeonsCompleted: saveData.completedDungeons.length,
+    dungeonsBeaten: saveData.dungeonsBeaten,
+    weapons: saveData.weapons.length,
+    heartPieces: saveData.heartPieces,
+    roomsCleared: saveData.totalRoomsCleared,
+    enemiesDefeated: saveData.totalEnemiesDefeated,
+  };
+}
+
+function clearSave() {
+  saveData = {
+    completedDungeons: [],
+    weapons: [],
+    heartPieces: 0,
+    totalRoomsCleared: 0,
+    totalEnemiesDefeated: 0,
+    dungeonsBeaten: 0,
+    playTime: 0,
+  };
+  localStorage.removeItem(SAVE_KEY);
+  console.log('Save cleared');
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = { saveData, loadSaveData, saveProgress, markDungeonComplete,
+    addWeapon, addHeartPiece, addStats, isDungeonCompleted, isDungeonUnlocked,
+    getSaveSummary, clearSave };
+}
\ No newline at end of file
diff --git a/test-full-node.js b/test-full-node.js
new file mode 100644
index 0000000..1435f02
--- /dev/null
+++ b/test-full-node.js
@@ -0,0 +1,110 @@
+// Full browser simulation test
+const fs = require('fs');
+const vm = require('vm');
+
+// Create browser context
+const context = {
+  window: null,
+  document: {
+    currentScript: { src: '', getAttribute: function(a) { return null; } },
+    getElementsByTagName: function() { return []; },
+  },
+  location: { origin: 'http://localhost:3000' },
+  console: console,
+  Math: Math, JSON: JSON, Array: Array, Object: Object,
+  String: String, Number: Number, Function: Function,
+  Error: Error, RegExp: RegExp, Set: Set, Map: Map,
+  Promise: Promise, setTimeout: setTimeout,
+  localStorage: { getItem: () => null, setItem: () => {}, removeItem: () => {} },
+};
+context.window = context;
+vm.createContext(context);
+
+var results = [];
+function assert(name, cond) { results.push((cond ? 'PASS' : 'FAIL') + ': ' + name); }
+function setScript(src) { context.document.currentScript = { src: 'http://localhost:3000' + src, getAttribute: () => null }; }
+
+function load(name, code) {
+  setScript(name);
+  try {
+    vm.runInContext(code, context);
+    console.log('  Loaded:', name);
+  } catch(e) {
+    console.error('  ERROR in', name + ':', e.message);
+  }
+}
+
+// Load all scripts in order
+load('/src/browser-polyfill.js', fs.readFileSync('src/browser-polyfill.js', 'utf8'));
+load('/src/core/constants.js', fs.readFileSync('src/core/constants.js', 'utf8'));
+load('/src/core/rng.js', fs.readFileSync('src/core/rng.js', 'utf8'));
+load('/src/core/utils.js', fs.readFileSync('src/core/utils.js', 'utf8'));
+load('/src/data/themes.js', fs.readFileSync('src/data/themes.js', 'utf8'));
+load('/src/data/dungeons.js', fs.readFileSync('src/data/dungeons.js', 'utf8'));
+load('/src/data/enemies.js', fs.readFileSync('src/data/enemies.js', 'utf8'));
+load('/src/data/weapons.js', fs.readFileSync('src/data/weapons.js', 'utf8'));
+load('/src/data/bosses.js', fs.readFileSync('src/data/bosses.js', 'utf8'));
+load('/src/data/items.js', fs.readFileSync('src/data/items.js', 'utf8'));
+load('/src/generator/rooms.js', fs.readFileSync('src/generator/rooms.js', 'utf8'));
+load('/src/generator/puzzles.js', fs.readFileSync('src/generator/puzzles.js', 'utf8'));
+load('/src/generator/placement.js', fs.readFileSync('src/generator/placement.js', 'utf8'));
+load('/src/generator/dungeon.js', fs.readFileSync('src/generator/dungeon.js', 'utf8'));
+
+// Core tests
+assert('module exists', typeof context.module !== 'undefined');
+assert('require is function', typeof context.require === 'function');
+assert('TILE=32', context.window.TILE === 32);
+assert('COLS=32', context.window.COLS === 32);
+assert('ROWS=24', context.window.ROWS === 24);
+assert('TILE_TYPES object', context.window.TILE_TYPES && typeof context.window.TILE_TYPES === 'object');
+assert('COLORS object', context.window.COLORS && typeof context.window.COLORS === 'object');
+assert('createRNG function', typeof context.createRNG === 'function');
+assert('createEmptyLayout function', typeof context.createEmptyLayout === 'function');
+assert('createBorderLayout function', typeof context.createBorderLayout === 'function');
+assert('isPassable function', typeof context.isPassable === 'function');
+
+// Data tests
+assert('THEMES object', context.window.THEMES && typeof context.window.THEMES === 'object');
+assert('DUNGEONS array', Array.isArray(context.window.DUNGEONS));
+assert('DUNGEONS count=100', context.window.DUNGEONS && context.window.DUNGEONS.length === 100);
+assert('ENEMY_TYPES array', Array.isArray(context.window.ENEMY_TYPES));
+assert('ENEMY_TYPES count=22', context.window.ENEMY_TYPES && context.window.ENEMY_TYPES.length === 22);
+assert('WEAPONS array', Array.isArray(context.window.WEAPONS));
+assert('WEAPONS count=12', context.window.WEAPONS && context.window.WEAPONS.length === 12);
+assert('BOSS_TYPES array', Array.isArray(context.window.BOSS_TYPES));
+assert('BOSS_TYPES count=100', context.window.BOSS_TYPES && context.window.BOSS_TYPES.length === 100);
+assert('ITEMS array', Array.isArray(context.window.ITEMS));
+assert('getItem function', typeof context.getItem === 'function');
+assert('getEnemyType function', typeof context.getEnemyType === 'function');
+assert('getBossType function', typeof context.getBossType === 'function');
+assert('getWeapon function', typeof context.getWeapon === 'function');
+
+// Generator tests
+assert('generateDungeon function', typeof context.generateDungeon === 'function');
+assert('generateRoomLayout function', typeof context.generateRoomLayout === 'function');
+assert('generatePuzzles function', typeof context.generatePuzzles === 'function');
+assert('generatePlacement function', typeof context.generatePlacement === 'function');
+
+// Require resolution tests
+context.document.currentScript = { src: 'http://localhost:3000/src/generator/placement.js', getAttribute: () => null };
+var roomsMod = context.require('./rooms');
+assert('require ./rooms generateRoomLayout', roomsMod.generateRoomLayout !== undefined);
+var enemiesMod = context.require('../data/enemies');
+assert('require ../data/enemies ENEMY_TYPES', Array.isArray(enemiesMod.ENEMY_TYPES));
+
+// Dungeon generation test
+var dungeon0 = context.window.DUNGEONS[0];
+var rooms = context.generateDungeon(dungeon0);
+assert('generateDungeon returns rooms', Array.isArray(rooms) && rooms.length > 0);
+assert('dungeon #0 rooms ~20', rooms.length >= 17 && rooms.length <= 25);
+assert('entrance assigned', rooms[0].type === 'entrance');
+assert('boss assigned', rooms[rooms.length - 1].type === 'boss');
+assert('all rooms connected', rooms.every(function(r) { return r.connections && r.connections.length >= 1; }));
+assert('rooms have tiles', rooms.every(function(r) { return Array.isArray(r.tiles); }));
+
+console.log('\n=== Results ===');
+results.forEach(r => console.log(r));
+var passed = results.filter(r => r.startsWith('PASS')).length;
+var failed = results.filter(r => r.startsWith('FAIL')).length;
+console.log('\n' + passed + ' passed, ' + failed + ' failed');
+process.exit(failed > 0 ? 1 : 0);
\ No newline at end of file
diff --git a/test-polyfill-node.js b/test-polyfill-node.js
new file mode 100644
index 0000000..97c97ae
--- /dev/null
+++ b/test-polyfill-node.js
@@ -0,0 +1,117 @@
+// Browser simulation test for polyfill
+const fs = require('fs');
+const path = require('path');
+const vm = require('vm');
+
+// Create a realistic browser context
+const context = {
+  // Global browser objects
+  window: null, // will be set below
+  document: {
+    currentScript: { src: '', getAttribute: function(a) { return null; } },
+    getElementsByTagName: function() { return []; },
+  },
+  location: { origin: 'http://localhost:3000' },
+  console: console,
+  Math: Math,
+  JSON: JSON,
+  Array: Array,
+  Object: Object,
+  String: String,
+  Number: Number,
+  Function: Function,
+  Error: Error,
+  RegExp: RegExp,
+  Set: Set,
+  Map: Map,
+  Promise: Promise,
+  setTimeout: setTimeout,
+  setInterval: setInterval,
+  clearTimeout: clearTimeout,
+  clearInterval: clearInterval,
+  // Browser APIs used by the code
+  localStorage: {
+    getItem: function() { return null; },
+    setItem: function() {},
+    removeItem: function() {},
+  },
+};
+// window IS the global object in browsers
+context.window = context;
+
+vm.createContext(context);
+
+const polyfillCode = fs.readFileSync('src/browser-polyfill.js', 'utf8');
+const constantsCode = fs.readFileSync('src/core/constants.js', 'utf8');
+const rngCode = fs.readFileSync('src/core/rng.js', 'utf8');
+const utilsCode = fs.readFileSync('src/core/utils.js', 'utf8');
+
+var results = [];
+function assert(name, condition) {
+  results.push((condition ? 'PASS' : 'FAIL') + ': ' + name);
+}
+
+// Track which script is loading
+function setScript(src) {
+  context.document.currentScript = { src: 'http://localhost:3000' + src, getAttribute: function(a) { return null; } };
+}
+
+// Load polyfill
+try {
+  vm.runInContext(polyfillCode, context);
+  assert('module exists', typeof context.module !== 'undefined');
+  assert('require is function', typeof context.require === 'function');
+} catch(e) { console.error('Polyfill error:', e.message); }
+
+// Load constants.js
+setScript('/src/core/constants.js');
+try {
+  vm.runInContext(constantsCode, context);
+  assert('TILE on window', context.window.TILE === 32);
+  assert('COLS on window', context.window.COLS === 32);
+  assert('ROWS on window', context.window.ROWS === 24);
+  assert('TILE_TYPES is object', context.window.TILE_TYPES && typeof context.window.TILE_TYPES === 'object');
+  assert('TILE_TYPES.FLOOR=0', context.window.TILE_TYPES && context.window.TILE_TYPES.FLOOR === 0);
+  assert('TILE_TYPES.WALL=1', context.window.TILE_TYPES && context.window.TILE_TYPES.WALL === 1);
+  assert('T_FLOOR', context.T_FLOOR === 0);
+  assert('T_WALL', context.T_WALL === 1);
+  assert('COLORS exists', context.COLORS && typeof context.COLORS === 'object');
+  assert('SCREEN_TITLE', context.SCREEN_TITLE === 'title');
+} catch(e) { console.error('constants error:', e.message); }
+
+// Load rng.js
+setScript('/src/core/rng.js');
+try {
+  vm.runInContext(rngCode, context);
+  assert('createRNG is function', typeof context.createRNG === 'function');
+  assert('mulberry32 is function', typeof context.mulberry32 === 'function');
+} catch(e) { console.error('rng error:', e.message); }
+
+// Load utils.js (uses require('./constants'))
+setScript('/src/core/utils.js');
+try {
+  vm.runInContext(utilsCode, context);
+  assert('createEmptyLayout is function', typeof context.createEmptyLayout === 'function');
+  assert('createBorderLayout is function', typeof context.createBorderLayout === 'function');
+  assert('isPassable is function', typeof context.isPassable === 'function');
+} catch(e) { console.error('utils error:', e.message); }
+
+// Test require resolution
+try {
+  context.document.currentScript = { src: 'http://localhost:3000/src/test.js', getAttribute: function() { return null; } };
+  var consts = context.require('./core/constants');
+  assert('require constants TILE=32', consts.TILE === 32);
+  assert('require constants COLS=32', consts.COLS === 32);
+  assert('require constants ROWS=24', consts.ROWS === 24);
+  assert('require constants TILE_TYPES', consts.TILE_TYPES && consts.TILE_TYPES.FLOOR === 0);
+  
+  var rng = context.require('./core/rng');
+  assert('require createRNG', typeof rng.createRNG === 'function');
+} catch(e) { console.error('require error:', e.message); }
+
+console.log('\n=== Results ===');
+results.forEach(r => console.log(r));
+var passed = results.filter(r => r.startsWith('PASS')).length;
+var failed = results.filter(r => r.startsWith('FAIL')).length;
+console.log('\n' + passed + ' passed, ' + failed + ' failed');
+process.exit(failed > 0 ? 1 : 0);
\ No newline at end of file
diff --git a/test-polyfill.html b/test-polyfill.html
new file mode 100644
index 0000000..69f80b8
--- /dev/null
+++ b/test-polyfill.html
@@ -0,0 +1,96 @@
+<!DOCTYPE html>
+<html>
+<head><meta charset="UTF-8"><title>Polyfill Test</title></head>
+<body>
+<pre id="output"></pre>
+
+<script src="src/browser-polyfill.js"></script>
+<script src="src/core/constants.js"></script>
+<script src="src/core/rng.js"></script>
+<script src="src/core/utils.js"></script>
+<script src="src/data/themes.js"></script>
+<script src="src/data/dungeons.js"></script>
+<script src="src/data/enemies.js"></script>
+<script src="src/data/weapons.js"></script>
+<script src="src/data/bosses.js"></script>
+<script src="src/data/items.js"></script>
+<script src="src/generator/dungeon.js"></script>
+<script src="src/generator/rooms.js"></script>
+<script src="src/generator/puzzles.js"></script>
+<script src="src/generator/placement.js"></script>
+
+<script>
+var output = document.getElementById('output');
+var lines = [];
+
+function assert(name, condition) {
+  var result = condition ? 'PASS' : 'FAIL';
+  lines.push(result + ': ' + name);
+}
+
+// Test polyfill created globals
+assert('module exists', typeof module !== 'undefined');
+assert('require exists', typeof require === 'function');
+
+// Test constants.js exposed to window
+assert('TILE on window', window.TILE === 32);
+assert('COLS on window', window.COLS === 32);
+assert('ROWS on window', window.ROWS === 24);
+assert('TILE_TYPES exists', window.TILE_TYPES && typeof window.TILE_TYPES === 'object');
+assert('TILE_TYPES.FLOOR', window.TILE_TYPES && window.TILE_TYPES.FLOOR === 0);
+assert('TILE_TYPES.WALL', window.TILE_TYPES && window.TILE_TYPES.WALL === 1);
+
+// Test backward-compat constants
+assert('T_FLOOR', window.T_FLOOR === 0);
+assert('T_WALL', window.T_WALL === 1);
+
+// Test rng.js exposed to window
+assert('createRNG exists', typeof createRNG === 'function');
+assert('mulberry32 exists', typeof mulberry32 === 'function');
+
+// Test utils.js require worked
+assert('C from utils (via require)', typeof createEmptyLayout === 'function');
+assert('createBorderLayout exists', typeof createBorderLayout === 'function');
+assert('isPassable exists', typeof isPassable === 'function');
+
+// Test data files exposed to window
+assert('THEMES exists', window.THEMES && typeof window.THEMES === 'object');
+assert('DUNGEONS exists', Array.isArray(window.DUNGEONS));
+assert('DUNGEONS.length', window.DUNGEONS && window.DUNGEONS.length === 100);
+assert('ENEMY_TYPES exists', Array.isArray(window.ENEMY_TYPES));
+assert('ENEMY_TYPES.length', window.ENEMY_TYPES && window.ENEMY_TYPES.length === 22);
+assert('WEAPONS exists', Array.isArray(window.WEAPONS));
+assert('BOSS_TYPES exists', Array.isArray(window.BOSS_TYPES));
+assert('ITEMS exists', Array.isArray(window.ITEMS));
+
+// Test generator files
+assert('generateDungeon exists', typeof generateDungeon === 'function');
+assert('generateRoomLayout exists', typeof generateRoomLayout === 'function');
+assert('generatePuzzles exists', typeof generatePuzzles === 'function');
+assert('generatePlacement exists', typeof generatePlacement === 'function');
+
+// Test require resolution
+var constantsFromRequire = require('./core/constants');
+assert('require constants TILE', constantsFromRequire.TILE === 32);
+assert('require constants COLS', constantsFromRequire.COLS === 32);
+assert('require constants ROWS', constantsFromRequire.ROWS === 24);
+
+var rngFromRequire = require('./core/rng');
+assert('require createRNG', typeof rngFromRequire.createRNG === 'function');
+
+// Test dungeon generation
+var dungeon = window.DUNGEONS[0];
+var rooms = generateDungeon(dungeon);
+assert('generateDungeon returns rooms', Array.isArray(rooms) && rooms.length > 0);
+assert('dungeon #0 room count ~20', rooms.length >= 18 && rooms.length <= 26);
+assert('entrance room assigned', rooms[0].type === 'entrance');
+assert('boss room assigned', rooms[rooms.length - 1].type === 'boss');
+assert('rooms connected', rooms.every(function(r) { return r.connections && r.connections.length > 0; }));
+
+lines.push('');
+lines.push('Total: ' + lines.filter(function(l) { return l.startsWith('PASS'); }).length + ' passed, ' + lines.filter(function(l) { return l.startsWith('FAIL'); }).length + ' failed');
+
+output.textContent = lines.join('\n');
+</script>
+</body>
+</html>
\ No newline at end of file