===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,227 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1");
+
+/**** 
+* Classes
+****/ 
+var Car = Container.expand(function () {
+	var self = Container.call(this);
+	var carGraphics = self.attachAsset('car', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.hasShield = false;
+	self.shieldAlpha = 1;
+	self.activateShield = function () {
+		self.hasShield = true;
+		self.shieldAlpha = 1;
+	};
+	self.update = function () {
+		if (self.hasShield) {
+			self.shieldAlpha -= 0.008;
+			if (self.shieldAlpha <= 0) {
+				self.hasShield = false;
+				carGraphics.alpha = 1;
+			} else {
+				carGraphics.alpha = 0.5 + self.shieldAlpha * 0.5;
+				carGraphics.tint = 0x00D9FF;
+			}
+		} else {
+			carGraphics.alpha = 1;
+			carGraphics.tint = 0xFFFFFF;
+		}
+	};
+	return self;
+});
+var Obstacle = Container.expand(function () {
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var PowerUp = Container.expand(function () {
+	var self = Container.call(this);
+	self.type = 'speed';
+	var powerUpGraphics = self.attachAsset('powerUpSpeed', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 6;
+	self.rotation = 0;
+	self.update = function () {
+		self.y += self.speed;
+		self.rotation += 0.05;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
+	backgroundColor: 0x1a1a1a
+});
+
+/**** 
+* Game Code
+****/ 
+var car = game.addChild(new Car());
+car.x = 2048 / 2;
+car.y = 2400;
+var obstacles = [];
+var powerups = [];
+var gameSpeed = 8;
+var gameSpeedMax = 18;
+var spawnRate = 40;
+var score = 0;
+var isGameActive = true;
+var hasCollided = false;
+var scoreTxt = new Text2('Score: 0', {
+	size: 100,
+	fill: '#FFFFFF'
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+var speedTxt = new Text2('Speed: 1.0x', {
+	size: 80,
+	fill: '#FFD700'
+});
+speedTxt.anchor.set(0.5, 0);
+speedTxt.y = 120;
+LK.gui.top.addChild(speedTxt);
+var trackLeft = 200;
+var trackRight = 1848;
+var laneWidth = (trackRight - trackLeft) / 3;
+var touchX = car.x;
+game.down = function (x, y, obj) {
+	touchX = x;
+};
+game.move = function (x, y, obj) {
+	if (!isGameActive) return;
+	touchX = x;
+	var newX = touchX;
+	if (newX < trackLeft) newX = trackLeft;
+	if (newX > trackRight) newX = trackRight;
+	car.x = newX;
+};
+game.up = function (x, y, obj) {};
+function spawnObstacle() {
+	var newObstacle = new Obstacle();
+	var lane = Math.floor(Math.random() * 3);
+	newObstacle.x = trackLeft + lane * laneWidth + laneWidth / 2;
+	newObstacle.y = -100;
+	newObstacle.speed = gameSpeed;
+	newObstacle.lastY = newObstacle.y;
+	newObstacle.lastIntersecting = false;
+	obstacles.push(newObstacle);
+	game.addChild(newObstacle);
+}
+function spawnPowerUp() {
+	var newPowerUp = new PowerUp();
+	var lane = Math.floor(Math.random() * 3);
+	newPowerUp.x = trackLeft + lane * laneWidth + laneWidth / 2;
+	newPowerUp.y = -100;
+	newPowerUp.speed = gameSpeed;
+	var powerType = Math.random();
+	if (powerType < 0.6) {
+		newPowerUp.type = 'speed';
+		newPowerUp.attachAsset('powerUpSpeed', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	} else {
+		newPowerUp.type = 'shield';
+		newPowerUp.attachAsset('powerUpShield', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	}
+	newPowerUp.lastY = newPowerUp.y;
+	newPowerUp.lastIntersecting = false;
+	powerups.push(newPowerUp);
+	game.addChild(newPowerUp);
+}
+game.update = function () {
+	if (!isGameActive) return;
+	score += 1;
+	scoreTxt.setText('Score: ' + Math.floor(score / 10));
+	if (LK.ticks % 600 === 0 && gameSpeed < gameSpeedMax) {
+		gameSpeed += 1;
+		spawnRate = Math.max(25, spawnRate - 2);
+	}
+	var speedMultiplier = gameSpeed / 8;
+	speedTxt.setText('Speed: ' + speedMultiplier.toFixed(1) + 'x');
+	if (LK.ticks % spawnRate === 0) {
+		spawnObstacle();
+	}
+	if (LK.ticks % 150 === 0) {
+		spawnPowerUp();
+	}
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		if (obstacle.lastY === undefined) obstacle.lastY = obstacle.y;
+		if (obstacle.lastIntersecting === undefined) obstacle.lastIntersecting = false;
+		if (obstacle.lastY >= -50 && obstacle.y < -50) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+			continue;
+		}
+		var currentIntersecting = obstacle.intersects(car);
+		if (!obstacle.lastIntersecting && currentIntersecting) {
+			if (!car.hasShield) {
+				isGameActive = false;
+				LK.getSound('collision').play();
+				LK.effects.flashScreen(0xFF0000, 500);
+				LK.setScore(Math.floor(score / 10));
+				LK.showGameOver();
+				return;
+			} else {
+				car.hasShield = false;
+				car.shieldAlpha = 0;
+				LK.getSound('powerup').play();
+				obstacle.destroy();
+				obstacles.splice(i, 1);
+				continue;
+			}
+		}
+		obstacle.lastY = obstacle.y;
+		obstacle.lastIntersecting = currentIntersecting;
+	}
+	for (var j = powerups.length - 1; j >= 0; j--) {
+		var powerup = powerups[j];
+		if (powerup.lastY === undefined) powerup.lastY = powerup.y;
+		if (powerup.lastIntersecting === undefined) powerup.lastIntersecting = false;
+		if (powerup.lastY >= -50 && powerup.y < -50) {
+			powerup.destroy();
+			powerups.splice(j, 1);
+			continue;
+		}
+		var powerupIntersecting = powerup.intersects(car);
+		if (!powerup.lastIntersecting && powerupIntersecting) {
+			if (powerup.type === 'speed') {
+				gameSpeed = Math.min(gameSpeedMax, gameSpeed + 3);
+			} else if (powerup.type === 'shield') {
+				car.activateShield();
+			}
+			LK.getSound('powerup').play();
+			score += 50;
+			powerup.destroy();
+			powerups.splice(j, 1);
+			continue;
+		}
+		powerup.lastY = powerup.y;
+		powerup.lastIntersecting = powerupIntersecting;
+	}
+};
+LK.playMusic('bgmusic', {
+	loop: true
 });
\ No newline at end of file