The user wants me to build a top-down alien shooter game using Phaser. Let me plan this out:

1. Use the pre-provided phaser.min.js
2. Create a single index.html file with everything inline
3. Features needed:
   - Player movement with WASD
   - Aim and shoot at aliens (probably mouse aiming)
   - Waves of advancing aliens
   - Health system
   - Score system
   - Increasing difficulty

4. Procedurally generated graphics only (no external images/audio)

Let me create this game with Phaser 3. I'll use Phaser's Graphics API to draw:
- Player ship (simple shape)
- Aliens (different colored shapes)
- Bullets
- Background (maybe stars)

Game mechanics:
- Player in center or can move around
- WASD to move
- Mouse to aim, click to shoot
- Aliens spawn from edges and move toward player
- Wave system with increasing difficulty
- Health bar
- Score display

Let me write this game:

I'll create a top-down alien shooter game with Phaser, using procedural graphics for everything. Let me build this complete game in a single HTML file.

I've created a complete top-down alien shooter game using Phaser. Let me verify the file was created correctly and summarize what I built.

I've created a complete top-down alien shooter game in `index.html`. Here's what's included: **Gameplay Features:** - **Movement:** WASD keys to move your ship in any direction - **Aiming & Firing:** Mouse to aim, click to shoot bullets - **Wave System:** Aliens attack in waves with increasing difficulty - **Health System:** Start with 100 HP, lose health when aliens reach you - **Score System:** Earn points for destroying aliens (10/25/50 based on type) **Alien Types (procedurally drawn):** 1. **Red aliens** - Basic enemies, 1 HP to kill, 10 points 2. **Purple aliens** - Faster star-shaped enemies, 2 HP, 25 points (wave 3+) 3. **Green aliens** - Triangle ships, 3 HP, 50 points (wave 5+) **Visual Effects:** - Animated starfield background - Particle explosions when aliens are destroyed - Screen shake on damage - Health bar that changes color (green → yellow → red) - Player ship with engine glow **Difficulty Scaling:** - More aliens spawn each wave - Aliens move faster in later waves - Stronger alien types appear in higher waves - Spawn rate increases over time **UI Elements:** - Health bar with HP counter - Score display - Wave counter - Controls help text - Game Over screen with restart option The game runs entirely with procedural graphics - all ships, aliens, bullets, and effects are drawn using Phaser's Graphics API with no external assets required.