===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,310 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Barrier = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('barrier', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.update = function () {
+		self.x -= gameSpeed;
+	};
+	return self;
+});
+var Coin = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('coin', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.collected = false;
+	self.update = function () {
+		self.x -= gameSpeed;
+		// Floating animation
+		graphics.rotation += 0.1;
+		graphics.y = Math.sin(LK.ticks * 0.1) * 10;
+	};
+	return self;
+});
+var Platform = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('platform', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.update = function () {
+		self.x -= gameSpeed;
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.velocityY = 0;
+	self.isGrounded = false;
+	self.jumpPower = -20;
+	self.gravity = 1.2;
+	self.maxFallSpeed = 15;
+	self.invulnerable = false;
+	self.jump = function () {
+		if (self.isGrounded) {
+			self.velocityY = self.jumpPower;
+			self.isGrounded = false;
+			LK.getSound('jump').play();
+		}
+	};
+	self.update = function () {
+		// Apply gravity
+		self.velocityY += self.gravity;
+		if (self.velocityY > self.maxFallSpeed) {
+			self.velocityY = self.maxFallSpeed;
+		}
+		// Update position
+		self.y += self.velocityY;
+		// Check ground collision
+		if (self.y >= groundY) {
+			self.y = groundY;
+			self.velocityY = 0;
+			self.isGrounded = true;
+		}
+		// Animation effect
+		graphics.rotation = self.velocityY * 0.02;
+	};
+	return self;
+});
+var Spike = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('spike', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.update = function () {
+		self.x -= gameSpeed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var gameSpeed = 8;
+var baseSpeed = 8;
+var maxSpeed = 16;
+var speedIncrement = 0.01;
+var groundY = 2400;
+var spawnTimer = 0;
+var distanceScore = 0;
+var coinScore = 0;
+// Game objects
+var player;
+var platforms = [];
+var spikes = [];
+var coins = [];
+var barriers = [];
+// UI elements
+var scoreText = new Text2('Score: 0', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreText);
+var distanceText = new Text2('Distance: 0m', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+distanceText.anchor.set(0, 0);
+distanceText.x = 100;
+distanceText.y = 150;
+LK.gui.topLeft.addChild(distanceText);
+// Initialize player
+player = game.addChild(new Player());
+player.x = 300;
+player.y = groundY;
+// Create initial platforms
+function createPlatform(x, y) {
+	var platform = new Platform();
+	platform.x = x;
+	platform.y = y;
+	platforms.push(platform);
+	game.addChild(platform);
+}
+function createSpike(x, y) {
+	var spike = new Spike();
+	spike.x = x;
+	spike.y = y;
+	spikes.push(spike);
+	game.addChild(spike);
+}
+function createCoin(x, y) {
+	var coin = new Coin();
+	coin.x = x;
+	coin.y = y;
+	coins.push(coin);
+	game.addChild(coin);
+}
+function createBarrier(x, y) {
+	var barrier = new Barrier();
+	barrier.x = x;
+	barrier.y = y;
+	barriers.push(barrier);
+	game.addChild(barrier);
+}
+// Spawn obstacles
+function spawnObstacles() {
+	var spawnX = 2048 + 200;
+	var rand = Math.random();
+	if (rand < 0.3) {
+		// Spike obstacle
+		createSpike(spawnX, groundY);
+		// Add coin above spike
+		if (Math.random() < 0.6) {
+			createCoin(spawnX, groundY - 150);
+		}
+	} else if (rand < 0.6) {
+		// Platform obstacle
+		var platformY = groundY - 100 - Math.random() * 200;
+		createPlatform(spawnX, platformY);
+		// Add coin on platform
+		if (Math.random() < 0.7) {
+			createCoin(spawnX, platformY - 50);
+		}
+	} else if (rand < 0.8) {
+		// Barrier obstacle
+		createBarrier(spawnX, groundY);
+		// Add coin above barrier
+		if (Math.random() < 0.5) {
+			createCoin(spawnX, groundY - 200);
+		}
+	} else {
+		// Just coins
+		createCoin(spawnX, groundY - 100 - Math.random() * 150);
+	}
+}
+// Check collisions
+function checkCollisions() {
+	// Check spike collisions
+	for (var i = spikes.length - 1; i >= 0; i--) {
+		var spike = spikes[i];
+		if (player.intersects(spike) && !player.invulnerable) {
+			// Hit obstacle
+			LK.getSound('hit').play();
+			LK.effects.flashScreen(0xff0000, 500);
+			LK.showGameOver();
+			return;
+		}
+	}
+	// Check barrier collisions
+	for (var i = barriers.length - 1; i >= 0; i--) {
+		var barrier = barriers[i];
+		if (player.intersects(barrier) && !player.invulnerable) {
+			// Hit obstacle
+			LK.getSound('hit').play();
+			LK.effects.flashScreen(0xff0000, 500);
+			LK.showGameOver();
+			return;
+		}
+	}
+	// Check coin collisions
+	for (var i = coins.length - 1; i >= 0; i--) {
+		var coin = coins[i];
+		if (player.intersects(coin) && !coin.collected) {
+			coin.collected = true;
+			coinScore += 10;
+			LK.setScore(LK.getScore() + 10);
+			LK.getSound('coin').play();
+			// Coin collection effect
+			tween(coin, {
+				scaleX: 2,
+				scaleY: 2,
+				alpha: 0
+			}, {
+				duration: 300,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					coin.destroy();
+					coins.splice(i, 1);
+				}
+			});
+		}
+	}
+	// Check if player fell off screen
+	if (player.y > 2732 + 100) {
+		LK.showGameOver();
+	}
+}
+// Clean up off-screen objects
+function cleanupObjects() {
+	// Clean platforms
+	for (var i = platforms.length - 1; i >= 0; i--) {
+		if (platforms[i].x < -200) {
+			platforms[i].destroy();
+			platforms.splice(i, 1);
+		}
+	}
+	// Clean spikes
+	for (var i = spikes.length - 1; i >= 0; i--) {
+		if (spikes[i].x < -200) {
+			spikes[i].destroy();
+			spikes.splice(i, 1);
+		}
+	}
+	// Clean coins
+	for (var i = coins.length - 1; i >= 0; i--) {
+		if (coins[i].x < -200 && !coins[i].collected) {
+			coins[i].destroy();
+			coins.splice(i, 1);
+		}
+	}
+	// Clean barriers
+	for (var i = barriers.length - 1; i >= 0; i--) {
+		if (barriers[i].x < -200) {
+			barriers[i].destroy();
+			barriers.splice(i, 1);
+		}
+	}
+}
+// Touch controls
+game.down = function (x, y, obj) {
+	player.jump();
+};
+// Main game loop
+game.update = function () {
+	// Update distance score
+	distanceScore += gameSpeed * 0.1;
+	LK.setScore(Math.floor(distanceScore) + coinScore);
+	// Update UI
+	scoreText.setText('Score: ' + LK.getScore());
+	distanceText.setText('Distance: ' + Math.floor(distanceScore) + 'm');
+	// Increase game speed gradually
+	gameSpeed = Math.min(baseSpeed + LK.getScore() * speedIncrement, maxSpeed);
+	// Spawn obstacles
+	spawnTimer++;
+	var spawnRate = Math.max(60 - Math.floor(LK.getScore() * 0.1), 30);
+	if (spawnTimer >= spawnRate) {
+		spawnObstacles();
+		spawnTimer = 0;
+	}
+	// Check collisions
+	checkCollisions();
+	// Clean up objects
+	cleanupObjects();
+};
+// Start background music
+LK.playMusic('bgmusic');
\ No newline at end of file