The user wants me to build a classic Mario-style side-scrolling platformer using Phaser. Let me create a complete game with:

1. Procedurally generated graphics (no external assets)
2. Player character that can run and jump
3. Scrolling platforms
4. Enemies that can be stomped
5. Coins to collect
6. A goal flag to reach

I'll use Phaser's graphics capabilities to draw everything procedurally. Let me create a comprehensive index.html file with all the game logic.

Key features to implement:
- Player with running and jumping physics
- Side-scrolling camera that follows the player
- Platforms at various heights
- Enemies (like goombas) that walk and can be stomped
- Coins scattered around
- Goal flag at the end
- Score tracking
- Lives system
- Game over and win states

Let me write this as a single HTML file with inline CSS and JavaScript.

I'll create a complete Mario-style platformer with procedurally generated graphics. Let me build this step by step.

I've created a complete Mario-style platformer game. Let me verify it exists and summarize what I built.

I've created a complete Mario-style platformer game in `index.html`. Here's what's included: ## Features ### Procedurally Generated Graphics (No External Assets) - **Player**: Mario-like character with red hat, overalls, mustache - **Enemies**: Brown mushroom-style goombas with angry expressions - **Platforms**: Brick blocks and question blocks - **Coins**: Golden spinning coins with shine effect - **Decorations**: Clouds, hills, bushes, green pipes - **Flag**: Goal flag with star ### Gameplay Mechanics - **Running & Jumping**: Arrow keys or WASD to move, SPACE to jump - **Variable Jump Height**: Release jump button for shorter jumps - **Stomp Enemies**: Jump on enemies to defeat them (+200 points) - **Collect Coins**: Touch coins to collect (+100 points each) - **Reach the Flag**: Goal flag at level end for victory (+1000 points) - **Lives System**: 3 lives, respawn on death - **Fall Death**: Fall into pits and lose a life ### Level Generation - **Procedural Layout**: Randomly generated each playthrough - **Gap Obstacles**: Pits to jump over - **Floating Platforms**: Various heights and lengths - **Enemy Placement**: Strategic enemy positioning - **Question Blocks**: Scattered throughout for variety - **Green Pipes**: Classic Mario obstacles ### Visual Polish - **Sky Gradient**: Blue background - **Parallax Layers**: Clouds, hills, bushes at different depths - **Particle Effects**: On coin collection, enemy stomp, death, victory - **Animated Coins**: Floating up and down - **Visual Sound Feedback**: On-screen text for jump/coin/stomp effects - **Victory Confetti**: Celebration particles at the flag ### UI - Score counter - Coin counter - Lives display - Control instructions - Game Over / Victory screens with restart option The game uses Phaser's physics engine for realistic platformer mechanics with gravity, collision detection, and smooth camera following. Play by opening `index.html` in a browser!