===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,265 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Asteroid = Container.expand(function () {
+	var self = Container.call(this);
+	var asteroidGraphics = self.attachAsset('asteroid', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3 + Math.random() * 2;
+	self.rotationSpeed = (Math.random() - 0.5) * 0.1;
+	self.update = function () {
+		self.y += self.speed;
+		asteroidGraphics.rotation += self.rotationSpeed;
+	};
+	return self;
+});
+var EnemyShip = Container.expand(function () {
+	var self = Container.call(this);
+	var shipGraphics = self.attachAsset('enemyShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 4 + Math.random() * 3;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	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 = -12;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var PlayerShip = Container.expand(function () {
+	var self = Container.call(this);
+	var shipGraphics = self.attachAsset('playerShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.lastShotTime = 0;
+	self.shotInterval = 300; // milliseconds
+	self.powerUpActive = false;
+	self.powerUpEndTime = 0;
+	self.update = function () {
+		// Handle power-up expiration
+		if (self.powerUpActive && LK.ticks * 16.67 > self.powerUpEndTime) {
+			self.powerUpActive = false;
+			shipGraphics.tint = 0xFFFFFF;
+		}
+		// Auto-fire bullets
+		var currentTime = LK.ticks * 16.67;
+		var interval = self.powerUpActive ? self.shotInterval / 2 : self.shotInterval;
+		if (currentTime - self.lastShotTime > interval) {
+			self.fireBullet();
+			self.lastShotTime = currentTime;
+		}
+	};
+	self.fireBullet = function () {
+		var bullet = new PlayerBullet();
+		bullet.x = self.x;
+		bullet.y = self.y - 40;
+		playerBullets.push(bullet);
+		game.addChild(bullet);
+		LK.getSound('shoot').play();
+	};
+	self.activatePowerUp = function () {
+		self.powerUpActive = true;
+		self.powerUpEndTime = LK.ticks * 16.67 + 5000; // 5 seconds
+		shipGraphics.tint = 0x00FFFF;
+	};
+	return self;
+});
+var PowerUp = Container.expand(function () {
+	var self = Container.call(this);
+	var powerUpGraphics = self.attachAsset('powerUp', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 2;
+	self.pulseTime = 0;
+	self.update = function () {
+		self.y += self.speed;
+		self.pulseTime += 0.1;
+		powerUpGraphics.alpha = 0.7 + Math.sin(self.pulseTime) * 0.3;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000011
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var player;
+var playerBullets = [];
+var enemies = [];
+var powerUps = [];
+var dragNode = null;
+var lastEnemySpawn = 0;
+var lastPowerUpSpawn = 0;
+var enemySpawnInterval = 1500;
+var powerUpSpawnInterval = 15000;
+var difficultyMultiplier = 1;
+// UI Elements
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Initialize player ship
+player = game.addChild(new PlayerShip());
+player.x = 1024;
+player.y = 2400;
+// Game event handlers
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		dragNode.x = Math.max(40, Math.min(2008, x));
+		dragNode.y = Math.max(100, Math.min(2632, y));
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	dragNode = player;
+	handleMove(x, y, obj);
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Main game update loop
+game.update = function () {
+	var currentTime = LK.ticks * 16.67;
+	// Increase difficulty over time
+	difficultyMultiplier = 1 + LK.getScore() * 0.02;
+	enemySpawnInterval = Math.max(500, 1500 - LK.getScore() * 10);
+	// Spawn enemies
+	if (currentTime - lastEnemySpawn > enemySpawnInterval) {
+		spawnEnemy();
+		lastEnemySpawn = currentTime;
+	}
+	// Spawn power-ups
+	if (currentTime - lastPowerUpSpawn > powerUpSpawnInterval) {
+		spawnPowerUp();
+		lastPowerUpSpawn = currentTime;
+	}
+	// Update and check player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var bullet = playerBullets[i];
+		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
+		// Remove bullets that go off screen
+		if (bullet.lastY >= -50 && bullet.y < -50) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check bullet-enemy collisions
+		var hitEnemy = false;
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var enemy = enemies[j];
+			if (bullet.intersects(enemy)) {
+				// Destroy enemy and bullet
+				LK.setScore(LK.getScore() + 10);
+				scoreTxt.setText('Score: ' + LK.getScore());
+				LK.effects.flashObject(enemy, 0xFF6600, 200);
+				LK.getSound('explosion').play();
+				enemy.destroy();
+				enemies.splice(j, 1);
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				hitEnemy = true;
+				break;
+			}
+		}
+		if (!hitEnemy) {
+			bullet.lastY = bullet.y;
+		}
+	}
+	// Update and check enemies
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var enemy = enemies[i];
+		if (enemy.lastY === undefined) enemy.lastY = enemy.y;
+		if (enemy.lastIntersecting === undefined) enemy.lastIntersecting = false;
+		// Remove enemies that go off screen
+		if (enemy.lastY <= 2800 && enemy.y > 2800) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Check player-enemy collision
+		var currentIntersecting = enemy.intersects(player);
+		if (!enemy.lastIntersecting && currentIntersecting) {
+			LK.effects.flashScreen(0xFF0000, 1000);
+			LK.showGameOver();
+			return;
+		}
+		enemy.lastY = enemy.y;
+		enemy.lastIntersecting = currentIntersecting;
+	}
+	// Update and check power-ups
+	for (var i = powerUps.length - 1; i >= 0; i--) {
+		var powerUp = powerUps[i];
+		if (powerUp.lastY === undefined) powerUp.lastY = powerUp.y;
+		if (powerUp.lastIntersecting === undefined) powerUp.lastIntersecting = false;
+		// Remove power-ups that go off screen
+		if (powerUp.lastY <= 2800 && powerUp.y > 2800) {
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			continue;
+		}
+		// Check player-powerup collision
+		var currentIntersecting = powerUp.intersects(player);
+		if (!powerUp.lastIntersecting && currentIntersecting) {
+			player.activatePowerUp();
+			LK.getSound('powerup').play();
+			LK.effects.flashObject(player, 0x00FFFF, 500);
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			continue;
+		}
+		powerUp.lastY = powerUp.y;
+		powerUp.lastIntersecting = currentIntersecting;
+	}
+};
+// Helper functions
+function spawnEnemy() {
+	var enemy;
+	var enemyType = Math.random();
+	if (enemyType < 0.6) {
+		enemy = new Asteroid();
+	} else {
+		enemy = new EnemyShip();
+	}
+	enemy.x = Math.random() * 1800 + 124; // Random x position with margins
+	enemy.y = -100;
+	enemy.speed *= difficultyMultiplier;
+	enemies.push(enemy);
+	game.addChild(enemy);
+}
+function spawnPowerUp() {
+	var powerUp = new PowerUp();
+	powerUp.x = Math.random() * 1800 + 124;
+	powerUp.y = -100;
+	powerUps.push(powerUp);
+	game.addChild(powerUp);
+}
\ No newline at end of file