===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,284 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Coin = Container.expand(function () {
+	var self = Container.call(this);
+	var coinGraphics = self.attachAsset('coin', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 0;
+	self.rotationSpeed = 0.1;
+	self.update = function () {
+		self.y += self.speed;
+		self.rotation += self.rotationSpeed;
+	};
+	return self;
+});
+var EnemyCar = Container.expand(function () {
+	var self = Container.call(this);
+	var carTypes = ['enemyCar1', 'enemyCar2', 'enemyCar3'];
+	var randomType = carTypes[Math.floor(Math.random() * carTypes.length)];
+	var carGraphics = self.attachAsset(randomType, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 0;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var PlayerCar = Container.expand(function () {
+	var self = Container.call(this);
+	var carGraphics = self.attachAsset('playerCar', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lane = 1; // 0 = left, 1 = center, 2 = right
+	self.targetX = 0;
+	self.moveSpeed = 12;
+	self.update = function () {
+		// Smooth lane changing
+		if (Math.abs(self.x - self.targetX) > 5) {
+			if (self.x < self.targetX) {
+				self.x += self.moveSpeed;
+			} else {
+				self.x -= self.moveSpeed;
+			}
+		} else {
+			self.x = self.targetX;
+		}
+	};
+	self.changeLane = function (direction) {
+		if (direction === 'left' && self.lane > 0) {
+			self.lane--;
+		} else if (direction === 'right' && self.lane < 2) {
+			self.lane++;
+		}
+		self.targetX = lanePositions[self.lane];
+	};
+	return self;
+});
+var RoadLine = Container.expand(function () {
+	var self = Container.call(this);
+	var lineGraphics = self.attachAsset('roadLine', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 0;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2c3e50
+});
+
+/**** 
+* Game Code
+****/ 
+// Game constants
+var lanePositions = [2048 * 0.25, 2048 * 0.5, 2048 * 0.75];
+var gameSpeed = 8;
+var baseSpeedIncrement = 0.002;
+var spawnTimer = 0;
+var coinSpawnTimer = 0;
+var roadLineTimer = 0;
+var distance = 0;
+var coins = 0;
+var isGameOver = false;
+// Game arrays
+var enemyCars = [];
+var gameCoins = [];
+var roadLines = [];
+// Create player car
+var playerCar = game.addChild(new PlayerCar());
+playerCar.x = lanePositions[1];
+playerCar.y = 2732 * 0.8;
+playerCar.targetX = lanePositions[1];
+// Create UI
+var distanceText = new Text2('Distance: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+distanceText.anchor.set(0, 0);
+distanceText.x = 150;
+distanceText.y = 50;
+LK.gui.topLeft.addChild(distanceText);
+var coinText = new Text2('Coins: 0', {
+	size: 60,
+	fill: 0xF1C40F
+});
+coinText.anchor.set(1, 0);
+coinText.x = -50;
+coinText.y = 50;
+LK.gui.topRight.addChild(coinText);
+var speedText = new Text2('Speed: 8', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+speedText.anchor.set(0.5, 0);
+speedText.x = 0;
+speedText.y = 120;
+LK.gui.top.addChild(speedText);
+// Input handling
+game.down = function (x, y, obj) {
+	if (isGameOver) return;
+	if (x < 2048 / 2) {
+		playerCar.changeLane('left');
+	} else {
+		playerCar.changeLane('right');
+	}
+};
+// Spawn functions
+function spawnEnemyCar() {
+	var enemy = new EnemyCar();
+	var lane = Math.floor(Math.random() * 3);
+	enemy.x = lanePositions[lane];
+	enemy.y = -200;
+	enemy.speed = gameSpeed;
+	enemy.lastY = enemy.y;
+	enemy.lastIntersecting = false;
+	enemyCars.push(enemy);
+	game.addChild(enemy);
+}
+function spawnCoin() {
+	var coin = new Coin();
+	var lane = Math.floor(Math.random() * 3);
+	coin.x = lanePositions[lane];
+	coin.y = -100;
+	coin.speed = gameSpeed;
+	coin.lastY = coin.y;
+	coin.lastIntersecting = false;
+	gameCoins.push(coin);
+	game.addChild(coin);
+}
+function spawnRoadLine() {
+	for (var i = 0; i < 2; i++) {
+		var roadLine = new RoadLine();
+		roadLine.x = lanePositions[i] + (lanePositions[i + 1] - lanePositions[i]) / 2;
+		roadLine.y = -100;
+		roadLine.speed = gameSpeed;
+		roadLine.lastY = roadLine.y;
+		roadLines.push(roadLine);
+		game.addChild(roadLine);
+	}
+}
+// Game update loop
+game.update = function () {
+	if (isGameOver) return;
+	// Update distance and speed
+	distance += 0.1;
+	gameSpeed += baseSpeedIncrement;
+	// Update UI
+	distanceText.setText('Distance: ' + Math.floor(distance));
+	coinText.setText('Coins: ' + coins);
+	speedText.setText('Speed: ' + Math.floor(gameSpeed));
+	// Spawn timers
+	spawnTimer++;
+	coinSpawnTimer++;
+	roadLineTimer++;
+	// Spawn enemy cars
+	if (spawnTimer >= Math.max(60 - Math.floor(distance / 10), 30)) {
+		spawnEnemyCar();
+		spawnTimer = 0;
+	}
+	// Spawn coins
+	if (coinSpawnTimer >= 120 + Math.floor(Math.random() * 120)) {
+		spawnCoin();
+		coinSpawnTimer = 0;
+	}
+	// Spawn road lines
+	if (roadLineTimer >= 40) {
+		spawnRoadLine();
+		roadLineTimer = 0;
+	}
+	// Update and check enemy cars
+	for (var i = enemyCars.length - 1; i >= 0; i--) {
+		var enemy = enemyCars[i];
+		// Initialize tracking variables
+		if (enemy.lastY === undefined) enemy.lastY = enemy.y;
+		if (enemy.lastIntersecting === undefined) enemy.lastIntersecting = false;
+		// Check if enemy went off screen
+		if (enemy.lastY <= 2800 && enemy.y > 2800) {
+			enemy.destroy();
+			enemyCars.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		var currentIntersecting = enemy.intersects(playerCar);
+		if (!enemy.lastIntersecting && currentIntersecting) {
+			// Collision detected
+			LK.getSound('crash').play();
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.setScore(Math.floor(distance) + coins * 10);
+			isGameOver = true;
+			LK.showGameOver();
+			return;
+		}
+		// Update last known states
+		enemy.lastY = enemy.y;
+		enemy.lastIntersecting = currentIntersecting;
+	}
+	// Update and check coins
+	for (var j = gameCoins.length - 1; j >= 0; j--) {
+		var coin = gameCoins[j];
+		// Initialize tracking variables
+		if (coin.lastY === undefined) coin.lastY = coin.y;
+		if (coin.lastIntersecting === undefined) coin.lastIntersecting = false;
+		// Check if coin went off screen
+		if (coin.lastY <= 2800 && coin.y > 2800) {
+			coin.destroy();
+			gameCoins.splice(j, 1);
+			continue;
+		}
+		// Check collection by player
+		var currentIntersecting = coin.intersects(playerCar);
+		if (!coin.lastIntersecting && currentIntersecting) {
+			// Coin collected
+			LK.getSound('coinCollect').play();
+			coins++;
+			coin.destroy();
+			gameCoins.splice(j, 1);
+			continue;
+		}
+		// Update last known states
+		coin.lastY = coin.y;
+		coin.lastIntersecting = currentIntersecting;
+	}
+	// Update road lines
+	for (var k = roadLines.length - 1; k >= 0; k--) {
+		var roadLine = roadLines[k];
+		// Initialize tracking variables
+		if (roadLine.lastY === undefined) roadLine.lastY = roadLine.y;
+		// Check if road line went off screen
+		if (roadLine.lastY <= 2800 && roadLine.y > 2800) {
+			roadLine.destroy();
+			roadLines.splice(k, 1);
+			continue;
+		}
+		// Update last known state
+		roadLine.lastY = roadLine.y;
+	}
+	// Update all objects' speed
+	for (var m = 0; m < enemyCars.length; m++) {
+		enemyCars[m].speed = gameSpeed;
+	}
+	for (var n = 0; n < gameCoins.length; n++) {
+		gameCoins[n].speed = gameSpeed;
+	}
+	for (var o = 0; o < roadLines.length; o++) {
+		roadLines[o].speed = gameSpeed;
+	}
+};
\ No newline at end of file