The task is to build a playable side-scrolling platformer in the classic Mario style using Phaser. It must be a single self-contained index.html file with CSS in <style>, JS in <script>, and it should...

The task is to build a playable side-scrolling platformer in the classic Mario style using ONLY procedurally generated graphics, no external image or audio assets. It must be a single-page web app in ...The task is to build a playable side-scrolling platformer in the classic Mario style using ONLY procedurally generated graphics, no external image or audio assets. It must be a single-page web app in one self-contained file named index.html. CSS in <style>, JS in <script>, and it must load phaser 3 with <script src="phaser.min.js"></script>.

I need to create an index.html file that includes Phaser, and in the script, build the game using procedural graphics.

Key elements:

- Use Phaser 3.

- Procedural graphics: use Phaser.Graphics to draw shapes for everything.

- Level: scrolling platforms 2D side view.

- Player: Mario-like, run left/right, jump.

- Enemies: goomba-like, move, stomp.

- Coins: collect.

- Goal: flag.

- Scrolling camera.

- One file: HTML with script src phaser, style, script for game code.

Since no external assets, generate textures or use Graphics for sprites.

For sprites, common is to use Phaser's cache to add generated textures from Graphics.

Plan:

- In preload: nothing, or generate textures.

The file has been written. Now, to check if it works, I should run it or inspect it. Since it's a web app, I can use bash to perhaps start a server, but the instruction is to end with index.html prese...

The task is complete: a single self-contained index.html file has been created that loads phaser.min.js and implements a full playable side-scrolling platformer in Mario style using only procedural gr...