The user wants me to build a Mario-style side-scrolling platformer using Phaser.js. The requirements are:
1. Single-page web app in index.html
2. Use phaser.min.js (already present in directory)
3. No external resources - all graphics must be procedurally generated
4. Features: run, jump, scrolling platforms, stomp enemies, collect coins, reach goal flag
5. All CSS in <style> tag, JS in <script> tag, inline

Let me first check if phaser.min.js is present in the current directory, then create the index.html file.

I'll need to:
1. Create a complete game with Phaser
2. Generate all graphics procedurally using Phaser's graphics API
3. Implement: player movement, jumping, platform collision, enemy stomping, coin collection, goal flag, side-scrolling

Let me write the code. I'll structure it as:
- HTML with inline styles and scripts
- Phaser game configuration
- Preload function (for generating graphics)
- Create function (setting up the game)
- Update function (game logic)

For procedural graphics, I'll use:
- Phaser.Graphics or Canvas API to draw shapes
- Generate textures using graphics and save them as textures

Let me create this step by step.

Good, phaser.min.js is present. Now I need to create a complete Mario-style platformer in a single index.html file. The game should include:

1. A player character that can run and jump
2. Side-scrolling platform levels
3. Enemies that can be stomped
4. Coins to collect
5. A goal flag to reach
6. All graphics generated procedurally (no external assets)

I'll use Phaser's graphics API to create textures procedurally. Let me structure this:

1. HTML structure with Phaser game canvas
2. CSS for basic styling
3. JavaScript with:
   - Game configuration
   - Preload function to generate textures
   - Create function to set up the level
   - Update function for game logic
   - Player, enemy, coin, and platform mechanics

I'll generate textures using Phaser.Graphics or by drawing on canvas and creating textures from them.

Let me write this out as a complete single-file application

The user asked me to create a playable side-scrolling platformer in the classic Mario style using Phaser with procedurally generated graphics. I've created a complete single-file HTML game. Let me verify that it was written correctly and check if there are any issues.

The game includes:
1. Player character with running, jumping animations
2. Side-scrolling camera
3. Platforms and ground
4. Enemies that can be stomped
5. Coins to collect
6. Question blocks and brick blocks
7. Goal flag at the end
8. Score and lives system
9. All graphics generated procedurally using Phaser's graphics API

The code looks complete. Let me verify the file was created properly by reading it back or checking its

The user just sent an empty message. I should check if the game was created correctly and maybe provide a summary of what was built. Let me verify the file exists and provide a brief overview of the game features