===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,300 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('enemyBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 15;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var EnemyCowboy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemyCowboy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lane = 1;
+	self.speed = 3;
+	self.lastShot = 0;
+	self.shootCooldown = 180; // 3 seconds at 60fps
+	self.targetLane = 1;
+	self.laneChangeSpeed = 8;
+	self.update = function () {
+		self.y += self.speed;
+		// Move towards target lane
+		var targetX = getLaneX(self.targetLane);
+		if (Math.abs(self.x - targetX) > self.laneChangeSpeed) {
+			if (self.x < targetX) {
+				self.x += self.laneChangeSpeed;
+			} else {
+				self.x -= self.laneChangeSpeed;
+			}
+		} else {
+			self.x = targetX;
+			self.lane = self.targetLane;
+		}
+		// Shooting logic
+		self.lastShot++;
+		if (self.lastShot >= self.shootCooldown) {
+			self.lastShot = 0;
+			// Create enemy bullet
+			var bullet = new EnemyBullet();
+			bullet.x = self.x;
+			bullet.y = self.y;
+			enemyBullets.push(bullet);
+			game.addChild(bullet);
+		}
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('cowboy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lane = 1;
+	self.targetLane = 1;
+	self.laneChangeSpeed = 12;
+	self.lastShot = 0;
+	self.shootCooldown = 72; // 1.2 seconds at 60fps
+	self.update = function () {
+		// Move towards target lane
+		var targetX = getLaneX(self.targetLane);
+		if (Math.abs(self.x - targetX) > self.laneChangeSpeed) {
+			if (self.x < targetX) {
+				self.x += self.laneChangeSpeed;
+			} else {
+				self.x -= self.laneChangeSpeed;
+			}
+		} else {
+			self.x = targetX;
+			self.lane = self.targetLane;
+		}
+		self.lastShot++;
+	};
+	self.moveLeft = function () {
+		if (self.targetLane > 0) {
+			self.targetLane--;
+		}
+	};
+	self.moveRight = function () {
+		if (self.targetLane < 2) {
+			self.targetLane++;
+		}
+	};
+	self.shoot = function () {
+		if (self.lastShot >= self.shootCooldown) {
+			self.lastShot = 0;
+			var bullet = new PlayerBullet();
+			bullet.x = self.x;
+			bullet.y = self.y;
+			playerBullets.push(bullet);
+			game.addChild(bullet);
+			LK.getSound('shoot').play();
+		}
+	};
+	return self;
+});
+var PlayerBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('playerBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -20;
+	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: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var player;
+var enemies = [];
+var playerBullets = [];
+var enemyBullets = [];
+var gameSpeed = 1;
+var survivalTime = 0;
+var killCount = 0;
+var lastEnemySpawn = 0;
+var enemySpawnRate = 300; // 5 seconds at 60fps
+var speedIncreaseTimer = 0;
+// Lane positions
+function getLaneX(lane) {
+	var laneWidth = 2048 / 3;
+	return laneWidth * lane + laneWidth / 2;
+}
+// Create road background
+var road = game.addChild(LK.getAsset('road', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 1024,
+	y: 2732 / 2
+}));
+// Create player
+player = game.addChild(new Player());
+player.x = getLaneX(1);
+player.y = 2200;
+// Create UI
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0, 0);
+LK.gui.topLeft.addChild(scoreTxt);
+scoreTxt.x = 120;
+scoreTxt.y = 20;
+var killsTxt = new Text2('Kills: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+killsTxt.anchor.set(1, 0);
+LK.gui.topRight.addChild(killsTxt);
+killsTxt.y = 20;
+// Control buttons
+var leftBtn = new Text2('◀', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+leftBtn.anchor.set(0.5, 0.5);
+LK.gui.bottomLeft.addChild(leftBtn);
+leftBtn.x = 200;
+leftBtn.y = -150;
+var rightBtn = new Text2('▶', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+rightBtn.anchor.set(0.5, 0.5);
+LK.gui.bottomRight.addChild(rightBtn);
+rightBtn.x = -200;
+rightBtn.y = -150;
+var shootBtn = new Text2('🔫', {
+	size: 100,
+	fill: 0xFFFFFF
+});
+shootBtn.anchor.set(0.5, 0.5);
+LK.gui.bottom.addChild(shootBtn);
+shootBtn.y = -150;
+// Button event handlers
+leftBtn.down = function () {
+	player.moveLeft();
+};
+rightBtn.down = function () {
+	player.moveRight();
+};
+shootBtn.down = function () {
+	player.shoot();
+};
+// Game update loop
+game.update = function () {
+	// Update survival time and score
+	survivalTime++;
+	if (survivalTime % 60 === 0) {
+		// Every second
+		LK.setScore(LK.getScore() + 1);
+		scoreTxt.setText('Score: ' + LK.getScore());
+	}
+	// Increase game speed over time
+	speedIncreaseTimer++;
+	if (speedIncreaseTimer % 600 === 0) {
+		// Every 10 seconds
+		gameSpeed += 0.2;
+		if (enemySpawnRate > 120) {
+			enemySpawnRate -= 20;
+		}
+	}
+	// Spawn enemies
+	lastEnemySpawn++;
+	if (lastEnemySpawn >= enemySpawnRate) {
+		lastEnemySpawn = 0;
+		var enemy = new EnemyCowboy();
+		enemy.lane = Math.floor(Math.random() * 3);
+		enemy.targetLane = player.lane; // Target player's current lane
+		enemy.x = getLaneX(enemy.lane);
+		enemy.y = -100;
+		enemy.speed *= gameSpeed;
+		enemies.push(enemy);
+		game.addChild(enemy);
+	}
+	// Update enemies and make them target player
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var enemy = enemies[i];
+		// Occasionally retarget player's lane
+		if (LK.ticks % 120 === 0) {
+			enemy.targetLane = player.lane;
+		}
+		// Remove enemies that went off screen
+		if (enemy.y > 2800) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+	}
+	// Update player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var bullet = playerBullets[i];
+		// Remove bullets that went off screen
+		if (bullet.y < -50) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with enemies
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var enemy = enemies[j];
+			if (bullet.intersects(enemy)) {
+				// Enemy hit
+				LK.getSound('enemyHit').play();
+				killCount++;
+				LK.setScore(LK.getScore() + 5);
+				scoreTxt.setText('Score: ' + LK.getScore());
+				killsTxt.setText('Kills: ' + killCount);
+				// Remove bullet and enemy
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				enemy.destroy();
+				enemies.splice(j, 1);
+				break;
+			}
+		}
+	}
+	// Update enemy bullets
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var bullet = enemyBullets[i];
+		// Remove bullets that went off screen
+		if (bullet.y > 2800) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (bullet.intersects(player)) {
+			// Player hit - game over
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+			return;
+		}
+	}
+};
\ No newline at end of file