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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Super Mario Bros - HTML5 Clone</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background: linear-gradient(to bottom, #1e90ff 0%, #58b7ff 100%);
            font-family: 'Arial', sans-serif;
            touch-action: manipulation;
        }
        
        #game-container {
            position: relative;
            width: 100vw;
            height: 100vh;
            overflow: hidden;
        }
        
        #game-world {
            position: absolute;
            width: 3000px;
            height: 100vh;
            background-color: #1e90ff;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="20" cy="20" r="5" fill="white" opacity="0.4"/><circle cx="60" cy="35" r="7" fill="white" opacity="0.4"/><circle cx="80" cy="10" r="4" fill="white" opacity="0.4"/></svg>');
            background-size: 100px 100px;
        }
        
        #ground {
            position: absolute;
            bottom: 0;
            width: 100%;
            height: 64px;
            background-color: #5c3927;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><rect width="32" height="32" fill="%2390562a"/><rect x="0" y="0" width="32" height="8" fill="%23a87842"/><rect x="0" y="8" width="32" height="8" fill="%23604228"/><rect x="0" y="16" width="32" height="8" fill="%23a87842"/><rect x="0" y="24" width="32" height="8" fill="%23604228"/></svg>');
        }
        
        #mario {
            position: absolute;
            width: 48px;
            height: 64px;
            bottom: 64px;
            left: 100px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="64" viewBox="0 0 48 64"><path d="M0,48 L16,48 L16,64 L0,64 Z" fill="%23cc0000"/><path d="M32,48 L48,48 L48,64 L32,64 Z" fill="%23cc0000"/><path d="M8,32 L40,32 L40,48 L8,48 Z" fill="%23f8f808"/><path d="M16,24 L32,24 L32,32 L16,32 Z" fill="%23cc0000"/><path d="M16,16 L32,16 L32,24 L16,24 Z" fill="%23f8f808"/><path d="M8,16 L16,16 L16,24 L8,24 Z" fill="%23f8f808"/><path d="M32,16 L40,16 L40,24 L32,24 Z" fill="%23f8f808"/><path d="M16,8 L32,8 L32,16 L16,16 Z" fill="%23806020"/><circle cx="16" cy="12" r="2" fill="%23000000"/><circle cx="32" cy="12" r="2" fill="%23000000"/><path d="M20,16 L28,16 L28,20 L24,24 L20,20 Z" fill="%23000000"/><path d="M8,4 L40,4 L40,8 L32,8 L32,16 L16,16 L16,8 L8,8 Z" fill="%23806020"/></svg>');
            background-repeat: no-repeat;
            z-index: 10;
            transition: transform 0.05s;
            transform-origin: center bottom;
            image-rendering: pixelated;
        }
        
        .mario-walk {
            animation: marioWalk 0.3s steps(3) infinite;
        }
        
        @keyframes marioWalk {
            0% { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="64" viewBox="0 0 48 64"><path d="M0,48 L16,48 L16,64 L0,64 Z" fill="%23cc0000"/><path d="M32,48 L48,48 L48,64 L32,64 Z" fill="%23cc0000"/><path d="M8,32 L40,32 L40,48 L8,48 Z" fill="%23f8f808"/><path d="M16,24 L32,24 L32,32 L16,32 Z" fill="%23cc0000"/><path d="M16,16 L32,16 L32,24 L16,24 Z" fill="%23f8f808"/><path d="M8,16 L16,16 L16,24 L8,24 Z" fill="%23f8f808"/><path d="M32,16 L40,16 L40,24 L32,24 Z" fill="%23f8f808"/><path d="M16,8 L32,8 L32,16 L16,16 Z" fill="%23806020"/><circle cx="16" cy="12" r="2" fill="%23000000"/><circle cx="32" cy="12" r="2" fill="%23000000"/><path d="M20,16 L28,16 L28,20 L24,24 L20,20 Z" fill="%23000000"/><path d="M8,4 L40,4 L40,8 L32,8 L32,16 L16,16 L16,8 L8,8 Z" fill="%23806020"/></svg>'); }
            33% { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="64" viewBox="0 0 48 64"><path d="M0,48 L16,48 L16,60 L0,60 Z" fill="%23cc0000"/><path d="M32,48 L48,48 L48,64 L32,64 Z" fill="%23cc0000"/><path d="M8,32 L40,32 L40,48 L8,48 Z" fill="%23f8f808"/><path d="M16,24 L32,24 L32,32 L16,32 Z" fill="%23cc0000"/><path d="M16,16 L32,16 L32,24 L16,24 Z" fill="%23f8f808"/><path d="M8,16 L16,16 L16,24 L8,24 Z" fill="%23f8f808"/><path d="M32,16 L40,16 L40,24 L32,24 Z" fill="%23f8f808"/><path d="M16,8 L32,8 L32,16 L16,16 Z" fill="%23806020"/><circle cx="16" cy="12" r="2" fill="%23000000"/><circle cx="32" cy="12" r="2" fill="%23000000"/><path d="M20,16 L28,16 L28,20 L24,24 L20,20 Z" fill="%23000000"/><path d="M8,4 L40,4 L40,8 L32,8 L32,16 L16,16 L16,8 L8,8 Z" fill="%23806020"/></svg>'); }
            66% { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="64" viewBox="0 0 48 64"><path d="M0,48 L16,48 L16,64 L0,64 Z" fill="%23cc0000"/><path d="M32,48 L48,48 L48,60 L32,60 Z" fill="%23cc0000"/><path d="M8,32 L40,32 L40,48 L8,48 Z" fill="%23f8f808"/><path d="M16,24 L32,24 L32,32 L16,32 Z" fill="%23cc0000"/><path d="M16,16 L32,16 L32,24 L16,24 Z" fill="%23f8f808"/><path d="M8,16 L16,16 L16,24 L8,24 Z" fill="%23f8f808"/><path d="M32,16 L40,16 L40,24 L32,24 Z" fill="%23f8f808"/><path d="M16,8 L32,8 L32,16 L16,16 Z" fill="%23806020"/><circle cx="16" cy="12" r="2" fill="%23000000"/><circle cx="32" cy="12" r="2" fill="%23000000"/><path d="M20,16 L28,16 L28,20 L24,24 L20,20 Z" fill="%23000000"/><path d="M8,4 L40,4 L40,8 L32,8 L32,16 L16,16 L16,8 L8,8 Z" fill="%23806020"/></svg>'); }
        }
        
        .mario-jump {
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="64" viewBox="0 0 48 64"><path d="M0,48 L16,48 L16,64 L0,64 Z" fill="%23cc0000"/><path d="M32,48 L48,48 L48,64 L32,64 Z" fill="%23cc0000"/><path d="M8,32 L40,32 L40,48 L8,48 Z" fill="%23f8f808"/><path d="M16,24 L32,24 L32,32 L16,32 Z" fill="%23cc0000"/><path d="M16,16 L32,16 L32,24 L16,24 Z" fill="%23f8f808"/><path d="M8,16 L16,16 L16,24 L8,24 Z" fill="%23f8f808"/><path d="M32,16 L40,16 L40,24 L32,24 Z" fill="%23f8f808"/><path d="M16,8 L32,8 L32,16 L16,16 Z" fill="%23806020"/><circle cx="16" cy="12" r="2" fill="%23000000"/><circle cx="32" cy="12" r="2" fill="%23000000"/><path d="M20,16 L28,16 L28,20 L24,24 L20,20 Z" fill="%23000000"/><path d="M8,4 L40,4 L40,8 L32,8 L32,16 L16,16 L16,8 L8,8 Z" fill="%23806020"/></svg>');
            transform: scale(1.2);
        }
        
        .block {
            position: absolute;
            width: 48px;
            height: 48px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48"><rect width="48" height="48" fill="%23b58c45"/><rect x="4" y="4" width="40" height="40" fill="%23d4a059"/><rect x="8" y="8" width="32" height="32" fill="%23b58c45"/><rect x="12" y="12" width="24" height="24" fill="%23d4a059"/><rect x="16" y="16" width="16" height="16" fill="%23b58c45"/><rect x="20" y="20" width="8" height="8" fill="%23d4a059"/></svg>');
            z-index: 5;
            image-rendering: pixelated;
        }
        
        .brick {
            position: absolute;
            width: 48px;
            height: 48px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48"><rect width="48" height="48" fill="%23cc0000"/><path d="M0,4 L48,4 L48,8 L0,8 Z M0,12 L48,12 L48,16 L0,16 Z M0,20 L48,20 L48,24 L0,24 Z M0,28 L48,28 L48,32 L0,32 Z M0,36 L48,36 L48,40 L0,40 Z M0,44 L48,44 L48,48 L0,48 Z" fill="%23990000"/></svg>');
            z-index: 5;
            image-rendering: pixelated;
        }
        
        .question-block {
            position: absolute;
            width: 48px;
            height: 48px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48"><rect width="48" height="48" fill="%23f8d808"/><rect x="4" y="4" width="40" height="40" fill="%23f8f808"/><rect x="8" y="8" width="32" height="32" fill="%23f8d808"/><path d="M24,16 L32,24 L24,32 L16,24 Z" fill="%23f8f808"/></svg>');
            z-index: 5;
            animation: blockBounce 0.5s infinite alternate;
            image-rendering: pixelated;
        }
        
        @keyframes blockBounce {
            0% { transform: translateY(0); }
            100% { transform: translateY(-3px); }
        }
        
        .pipe {
            position: absolute;
            width: 96px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="96" height="100" viewBox="0 0 96 100"><rect width="96" height="24" fill="%23189409"/><rect y="24" width="96" height="76" fill="%2320b010"/><rect x="8" y="8" width="80" height="16" fill="%2330c020"/><rect x="16" y="28" width="64" height="72" fill="%2330c020"/></svg>');
            background-repeat: repeat-y;
            background-size: 96px 96px;
            z-index: 5;
            image-rendering: pixelated;
        }
        
        .coin {
            position: absolute;
            width: 24px;
            height: 24px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><circle cx="12" cy="12" r="10" fill="%23f8f808" stroke="%23f8d808" stroke-width="2"/><path d="M12,5 C15,5 19,8 19,12 C19,16 15,19 12,19 C9,19 5,16 5,12 C5,8 9,5 12,5 Z" fill="%23e8c810"/><path d="M12,8 C14,8 16,10 16,12 C16,14 14,16 12,16 C10,16 8,14 8,12 C8,10 10,8 12,8 Z" fill="%23f8f808"/></svg>');
            z-index: 4;
            animation: coinSpin 0.5s linear infinite;
            image-rendering: pixelated;
        }
        
        @keyframes coinSpin {
            0% { transform: scale(1) rotateY(0deg); }
            50% { transform: scale(1.2) rotateY(180deg); }
            100% { transform: scale(1) rotateY(360deg); }
        }
        
        .goomba {
            position: absolute;
            width: 48px;
            height: 45px;
            bottom: 64px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="45" viewBox="0 0 48 45"><path d="M8,0 C12,0 39,0 40,0 C44,0 48,4 48,8 C48,30 48,30 48,30 C48,38 40,45 40,45 L8,45 C0,45 0,38 0,30 C0,30 0,10 0,8 C0,4 4,0 8,0 Z" fill="%23805c28"/><rect y="15" width="48" height="30" fill="%23684428"/><rect x="6" y="6" width="12" height="9" fill="%23000000"/><rect x="30" y="6" width="12" height="9" fill="%23000000"/><rect x="18" y="24" width="12" height="3" fill="%23000000"/><rect x="12" y="36" width="8" height="9" fill="%23000000"/><rect x="28" y="36" width="8" height="9" fill="%23000000"/></svg>');
            z-index: 6;
            animation: goombaWalk 1s steps(2) infinite;
            image-rendering: pixelated;
        }
        
        @keyframes goombaWalk {
            0% { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="45" viewBox="0 0 48 45"><path d="M8,0 C12,0 39,0 40,0 C44,0 48,4 48,8 C48,30 48,30 48,30 C48,38 40,45 40,45 L8,45 C0,45 0,38 0,30 C0,30 0,10 0,8 C0,4 4,0 8,0 Z" fill="%23805c28"/><rect y="15" width="48" height="30" fill="%23684428"/><rect x="6" y="6" width="12" height="9" fill="%23000000"/><rect x="30" y="6" width="12" height="9" fill="%23000000"/><rect x="18" y="24" width="12" height="3" fill="%23000000"/><rect x="12" y="36" width="8" height="9" fill="%23000000"/><rect x="28" y="36" width="8" height="9" fill="%23000000"/></svg>'); }
            50% { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="45" viewBox="0 0 48 45"><path d="M8,0 C12,0 39,0 40,0 C44,0 48,4 48,8 C48,30 48,30 48,30 C48,34 47,38 40,45 L8,45 C5,45 0,40 0,32 C0,32 0,10 0,8 C0,4 4,0 8,0 Z" fill="%23805c28"/><rect y="15" width="48" height="30" fill="%23684428"/><rect x="6" y="6" width="12" height="9" fill="%23000000"/><rect x="30" y="6" width="12" height="9" fill="%23000000"/><rect x="18" y="24" width="12" height="3" fill="%23000000"/><rect x="12" y="36" width="8" height="9" fill="%23000000"/><rect x="28" y="36" width="8" height="9" fill="%23000000"/></svg>'); }
        }
        
        .goomba-squashed {
            animation: none;
            height: 20px;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="48" height="20" viewBox="0 0 48 20"><rect y="0" width="48" height="20" fill="%23805c28"/><rect x="18" y="5" width="12" height="3" fill="%23000000"/></svg>');
        }
        
        #hud {
            position: fixed;
            top: 10px;
            left: 10px;
            color: white;
            font-size: 24px;
            font-weight: bold;
            text-shadow: 3px 3px 0 #000;
            z-index: 100;
            padding: 10px;
            background-color: rgba(0,0,0,0.5);
            border-radius: 10px;
            display: flex;
            gap: 20px;
        }
        
        .hud-item {
            display: flex;
            align-items: center;
        }
        
        #controls-info {
            position: fixed;
            bottom: 10px;
            left: 10px;
            color: white;
            font-size: 16px;
            text-shadow: 2px 2px 0 #000;
            background-color: rgba(0,0,0,0.7);
            padding: 10px 15px;
            border-radius: 10px;
            z-index: 100;
        }
        
        #game-over {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.8);
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            font-size: 48px;
            font-weight: bold;
            text-shadow: 4px 4px 0 #000;
            z-index: 200;
        }
        
        #restart-btn {
            margin-top: 30px;
            padding: 15px 30px;
            background-color: #ff0000;
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 24px;
            font-weight: bold;
            cursor: pointer;
            box-shadow: 0 5px 0 #990000, 0 5px 10px rgba(0,0,0,0.5);
            transition: all 0.1s;
        }
        
        #restart-btn:active {
            transform: translateY(5px);
            box-shadow: 0 0 0 #990000, 0 5px 10px rgba(0,0,0,0.5);
        }
        
        #title {
            position: fixed;
            top: 20px;
            width: 100%;
            text-align: center;
            color: white;
            font-size: 32px;
            font-weight: bold;
            text-shadow: 4px 4px 0 #000;
            z-index: 100;
            animation: titleBounce 1s infinite alternate;
        }
        
        @keyframes titleBounce {
            0% { transform: translateY(0); }
            100% { transform: translateY(-10px); }
        }
    </style>
</head>
<body>
    <div id="title">SUPER MARIO BROS</div>
    <div id="game-container">
        <div id="game-world">
            <div id="ground"></div>
            <div id="mario"></div>
        </div>
    </div>
    
    <div id="hud">
        <div class="hud-item">Coins: <span id="coins">0</span></div>
        <div class="hud-item">Score: <span id="score">0</span></div>
        <div class="hud-item">World: <span>1-1</span></div>
    </div>
    
    <div id="controls-info">
        ← → to Move | ↑/SPACE to Jump
    </div>
    
    <div id="game-over">
        <h1>GAME OVER!</h1>
        <button id="restart-btn">PLAY AGAIN</button>
    </div>
    
    <audio id="jump-sound" preload="auto">
        <source src="data:audio/wav;base64,UklGRl9vT19XQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YQ...">
    </audio>
    <audio id="coin-sound" preload="auto">
        <source src="data:audio/wav;base64,UklGRl9vT19XQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YQ...">
    </audio>
    <audio id="bump-sound" preload="auto">
        <source src="data:audio/wav;base64,UklGRl9vT19XQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YQ...">
    </audio>
    <audio id="stomp-sound" preload="auto">
        <source src="data:audio/wav;base64,UklGRl9vT19XQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YQ...">
    </audio>
    <audio id="die-sound" preload="auto">
        <source src="data:audio/wav;base64,UklGRl9vT19XQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YQ...">
    </audio>
    <audio id="theme-music" preload="auto" loop>
        <source src="data:audio/wav;base64,UklGRl9vT19XQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YQ...">
    </audio>
    
    <script>
        // Game state
        const gameState = {
            coins: 0,
            score: 0,
            lives: 3,
            world: '1-1',
            marioX: 100,
            marioY: 0,
            velocityX: 0,
            velocityY: 0,
            direction: 1, // 1 for right, -1 for left
            isJumping: false,
            isWalking: false,
            isAlive: true,
            cameraX: 0,
            gravity: 0.5,
            jumpForce: -13,
            speed: 5,
            moveAcceleration: 0.7,
            moveDeceleration: 0.7,
            maxSpeed: 8,
            groundY: 0,
            keys: {
                ArrowLeft: false,
                ArrowRight: false,
                ArrowUp: false,
                Space: false,
                KeyA: false,
                KeyD: false,
                KeyW: false
            }
        };

        // DOM elements
        const gameContainer = document.getElementById('game-container');
        const gameWorld = document.getElementById('game-world');
        const mario = document.getElementById('mario');
        const ground = document.getElementById('ground');
        const coinsDisplay = document.getElementById('coins');
        const scoreDisplay = document.getElementById('score');
        const gameOverScreen = document.getElementById('game-over');
        const restartBtn = document.getElementById('restart-btn');
        const title = document.getElementById('title');

        // Audio elements
        const jumpSound = document.getElementById('jump-sound');
        const coinSound = document.getElementById('coin-sound');
        const bumpSound = document.getElementById('bump-sound');
        const stompSound = document.getElementById('stomp-sound');
        const dieSound = document.getElementById('die-sound');
        const themeMusic = document.getElementById('theme-music');

        // Game objects
        const blocks = [];
        const bricks = [];
        const questionBlocks = [];
        const coins = [];
        const pipes = [];
        const goombas = [];

        // Initialize the game
        function initGame() {
            gameState.coins = 0;
            gameState.score = 0;
            gameState.lives = 3;
            gameState.marioX = 100;
            gameState.marioY = 0;
            gameState.velocityX = 0;
            gameState.velocityY = 0;
            gameState.direction = 1;
            gameState.isJumping = false;
            gameState.isWalking = false;
            gameState.isAlive = true;
            gameState.cameraX = 0;
            gameOverScreen.style.display = 'none';
            
            // Reset Mario position and appearance
            mario.style.left = '100px';
            mario.style.bottom = '64px';
            mario.classList.remove('mario-walk', 'mario-jump');
            
            // Create level elements
            createLevel();
            
            // Start game loop
            requestAnimationFrame(gameLoop);
            
            // Play theme music
            themeMusic.currentTime = 0;
            themeMusic.volume = 0.7;
            try {
                themeMusic.play();
            } catch (e) {
                console.log("Audio play failed:", e);
            }
        }

        // Create level elements
        function createLevel() {
            // Clear existing elements
            gameWorld.querySelectorAll('.block, .brick, .question-block, .coin, .pipe, .goomba')
                .forEach(element => element.remove());
            
            // Clear arrays
            blocks.length = 0;
            bricks.length = 0;
            questionBlocks.length = 0;
            coins.length = 0;
            pipes.length = 0;
            goombas.length = 0;

            // Calculate ground position
            gameState.groundY = 64; // Height of ground element

            // Add platforms
            for (let i = 0; i < 10; i++) {
                const block = document.createElement('div');
                block.className = 'block';
                block.style.left = (500 + i * 48) + 'px';
                block.style.bottom = '150px';
                gameWorld.appendChild(block);
                blocks.push({
                    element: block,
                    x: 500 + i * 48,
                    y: 150,
                    width: 48,
                    height: 48
                });
            }

            // Add bricks
            for (let i = 0; i < 3; i++) {
                const brick = document.createElement('div');
                brick.className = 'brick';
                brick.style.left = (300 + i * 60) + 'px';
                brick.style.bottom = '200px';
                gameWorld.appendChild(brick);
                bricks.push({
                    element: brick,
                    x: 300 + i * 60,
                    y: 200,
                    width: 48,
                    height: 48
                });
            }

            // Add question blocks
            for (let i = 0; i < 2; i++) {
                const block = document.createElement('div');
                block.className = 'question-block';
                block.style.left = (700 + i * 120) + 'px';
                block.style.bottom = '200px';
                gameWorld.appendChild(block);
                questionBlocks.push({
                    element: block,
                    x: 700 + i * 120,
                    y: 200,
                    width: 48,
                    height: 48
                });
            }

            // Add pipes
            const pipe = document.createElement('div');
            pipe.className = 'pipe';
            pipe.style.left = '1200px';
            pipe.style.bottom = '0px';
            pipe.style.height = '150px';
            gameWorld.appendChild(pipe);
            pipes.push({
                element: pipe,
                x: 1200,
                y: 0,
                width: 96,
                height: 150
            });

            // Add more pipes
            const pipe2 = document.createElement('div');
            pipe2.className = 'pipe';
            pipe2.style.left = '1800px';
            pipe2.style.bottom = '0px';
            pipe2.style.height = '180px';
            gameWorld.appendChild(pipe2);
            pipes.push({
                element: pipe2,
                x: 1800,
                y: 0,
                width: 96,
                height: 180
            });

            // Add coins
            for (let i = 0; i < 8; i++) {
                const coin = document.createElement('div');
                coin.className = 'coin';
                coin.style.left = (800 + i * 70) + 'px';
                coin.style.bottom = '250px';
                gameWorld.appendChild(coin);
                coins.push({
                    element: coin,
                    x: 800 + i * 70,
                    y: 250,
                    width: 24,
                    height: 24
                });
            }

            // Add floating coins
            for (let i = 0; i < 5; i++) {
                const coin = document.createElement('div');
                coin.className = 'coin';
                coin.style.left = (1500 + i * 150) + 'px';
                coin.style.bottom = '150px';
                gameWorld.appendChild(coin);
                coins.push({
                    element: coin,
                    x: 1500 + i * 150,
                    y: 150,
                    width: 24,
                    height: 24
                });
            }

            // Add enemies
            for (let i = 0; i < 5
</html>