Kids playing with Claude: A Super Mario-style platformer featuring a Dalmatian dog as the hero!

1. Open index.html in a web browser
2. Use Arrow Keys to move left/right
3. Press SPACE to jump
4. Collect white bones for 50 points
5. Collect golden bones to grow big (worth 200 points!)
6. Jump on cats to defeat them
7. Reach the flag to complete the level

• Dalmatian Hero: Play as an adorable spotted dalmatian
• Power-ups: Golden bones make you grow bigger (like mushrooms in Mario!)
• Kid-Friendly: Slower enemy movement suitable for younger players
• Two Complete Levels: With progressively increasing difficulty
• Growing Mechanic: When powered up, you take one hit without losing a life

Levels are defined in the LEVELS array at the bottom of game.js (around line 720). To add a new level, simply add a new object to this array:

{
    // Where the player starts
    playerStart: { x: 50, y: 400 },

    // Platforms (ground, floating platforms, etc.)
    platforms: [
        { x: 0, y: 500, width: 400, height: 100, type: 'grass' },
        { x: 450, y: 450, width: 150, height: 20, type: 'brick' },
        { x: 650, y: 400, width: 150, height: 20, type: 'cloud' },
        // ... add more platforms
    ],

    // Cat enemies
    enemies: [
        { x: 300, y: 400, moveRange: 50 },
        // x: horizontal position
        // y: vertical position
        // moveRange: how far left/right they patrol
    ],

    // Collectible bones
    collectibles: [
        { x: 200, y: 450 }, // Regular bone (50 points)
        { x: 900, y: 300, isPowerUp: true }, // Golden power-up bone (200 points)
    ],

    // Victory flag position
    flagPosition: { x: 2100, y: 436 }
}

• 'grass': Green grass blocks with brown dirt
• 'brick': Brown brick platforms
• 'cloud': White fluffy cloud platforms

1. Place the player start position safely on a platform
2. Make sure platforms are close enough for the player to jump between (dog can jump ~15 pixels high and ~5 pixels horizontally per frame)
3. Place power-up bones strategically before difficult sections
4. The flag should be at y: 436 to sit nicely on most platforms
5. Enemy moveRange determines difficulty - smaller range = easier to avoid

• index.html: Main HTML structure and UI
• game.js: All game logic, classes, and level definitions
• No external dependencies - pure vanilla JavaScript!

• Adjust cat speed by changing this.vx in the Cat constructor (game.js:455)
• Change player speed/jump height in Dog constructor (game.js:256-257)
• Modify colors and appearance in the draw() methods
• Add more enemy types by creating new classes
• Add different power-ups (speed boost, invincibility, etc.)

Have fun playing and creating new levels!