===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,395 @@
-/****
+/**** 
+* 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 = 2 + Math.random() * 3;
+	self.rotationSpeed = (Math.random() - 0.5) * 0.1;
+	self.update = function () {
+		self.y += self.speed;
+		asteroidGraphics.rotation += self.rotationSpeed;
+	};
+	return self;
+});
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 1 + Math.random() * 2;
+	self.shootTimer = 0;
+	self.shootDelay = 60 + Math.random() * 60;
+	self.health = 1;
+	self.update = function () {
+		self.y += self.speed;
+		self.x += Math.sin(self.y * 0.01) * 2;
+		if (self.shootTimer > 0) {
+			self.shootTimer--;
+		}
+	};
+	self.canShoot = function () {
+		return self.shootTimer <= 0 && self.y > 100;
+	};
+	self.shoot = function () {
+		if (self.canShoot()) {
+			self.shootTimer = self.shootDelay;
+			return true;
+		}
+		return false;
+	};
+	return self;
+});
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('enemyBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 6;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.shootTimer = 0;
+	self.shootDelay = 10;
+	self.specialAbilityCharges = 3;
+	self.update = function () {
+		if (self.shootTimer > 0) {
+			self.shootTimer--;
+		}
+	};
+	self.canShoot = function () {
+		return self.shootTimer <= 0;
+	};
+	self.shoot = function () {
+		if (self.canShoot()) {
+			self.shootTimer = self.shootDelay;
+			return true;
+		}
+		return false;
+	};
+	self.useSpecialAbility = function () {
+		if (self.specialAbilityCharges > 0) {
+			self.specialAbilityCharges--;
+			return true;
+		}
+		return false;
+	};
+	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 PowerUp = Container.expand(function () {
+	var self = Container.call(this);
+	var powerUpGraphics = self.attachAsset('powerUp', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3;
+	self.type = Math.random() < 0.5 ? 'special' : 'score';
+	if (self.type === 'special') {
+		powerUpGraphics.tint = 0x00ff00;
+	}
+	self.update = function () {
+		self.y += self.speed;
+		powerUpGraphics.rotation += 0.1;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000011
+});
+
+/**** 
+* Game Code
+****/ 
+var player = game.addChild(new Player());
+player.x = 1024;
+player.y = 2400;
+var asteroids = [];
+var enemies = [];
+var playerBullets = [];
+var enemyBullets = [];
+var powerUps = [];
+var dragNode = null;
+var lastPlayerX = player.x;
+var lastPlayerY = player.y;
+var asteroidSpawnTimer = 0;
+var enemySpawnTimer = 0;
+var powerUpSpawnTimer = 0;
+var difficultyLevel = 1;
+// UI Elements
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+var specialAbilityTxt = new Text2('Special: 3', {
+	size: 50,
+	fill: 0x00FF00
+});
+specialAbilityTxt.anchor.set(0, 0);
+specialAbilityTxt.x = 120;
+specialAbilityTxt.y = 100;
+LK.gui.topLeft.addChild(specialAbilityTxt);
+function spawnAsteroid() {
+	var asteroid = new Asteroid();
+	asteroid.x = Math.random() * 1800 + 100;
+	asteroid.y = -100;
+	asteroids.push(asteroid);
+	game.addChild(asteroid);
+}
+function spawnEnemy() {
+	var enemy = new Enemy();
+	enemy.x = Math.random() * 1800 + 100;
+	enemy.y = -100;
+	enemies.push(enemy);
+	game.addChild(enemy);
+}
+function spawnPowerUp() {
+	var powerUp = new PowerUp();
+	powerUp.x = Math.random() * 1800 + 100;
+	powerUp.y = -100;
+	powerUps.push(powerUp);
+	game.addChild(powerUp);
+}
+function createPlayerBullet(x, y) {
+	var bullet = new PlayerBullet();
+	bullet.x = x;
+	bullet.y = y;
+	playerBullets.push(bullet);
+	game.addChild(bullet);
+	LK.getSound('shoot').play();
+}
+function createEnemyBullet(x, y) {
+	var bullet = new EnemyBullet();
+	bullet.x = x;
+	bullet.y = y;
+	enemyBullets.push(bullet);
+	game.addChild(bullet);
+}
+function useSpecialAbility() {
+	if (player.useSpecialAbility()) {
+		// Clear all enemy bullets and damage all enemies
+		for (var i = enemyBullets.length - 1; i >= 0; i--) {
+			enemyBullets[i].destroy();
+			enemyBullets.splice(i, 1);
+		}
+		// Flash effect
+		LK.effects.flashScreen(0x00ff00, 500);
+		// Damage all enemies
+		for (var i = enemies.length - 1; i >= 0; i--) {
+			enemies[i].destroy();
+			enemies.splice(i, 1);
+			LK.setScore(LK.getScore() + 100);
+		}
+		specialAbilityTxt.setText('Special: ' + player.specialAbilityCharges);
+		LK.getSound('explosion').play();
+	}
+}
+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) {
+	// Use special ability on tap release
+	if (dragNode && Math.abs(player.x - lastPlayerX) < 20 && Math.abs(player.y - lastPlayerY) < 20) {
+		useSpecialAbility();
+	}
+	dragNode = null;
+};
+game.update = function () {
+	lastPlayerX = player.x;
+	lastPlayerY = player.y;
+	// Update difficulty
+	difficultyLevel = Math.floor(LK.getScore() / 1000) + 1;
+	// Spawn asteroids
+	asteroidSpawnTimer++;
+	if (asteroidSpawnTimer >= Math.max(20, 60 - difficultyLevel * 5)) {
+		spawnAsteroid();
+		asteroidSpawnTimer = 0;
+	}
+	// Spawn enemies
+	enemySpawnTimer++;
+	if (enemySpawnTimer >= Math.max(60, 120 - difficultyLevel * 10)) {
+		spawnEnemy();
+		enemySpawnTimer = 0;
+	}
+	// Spawn power-ups
+	powerUpSpawnTimer++;
+	if (powerUpSpawnTimer >= 300) {
+		spawnPowerUp();
+		powerUpSpawnTimer = 0;
+	}
+	// Player auto-shoot
+	if (player.shoot()) {
+		createPlayerBullet(player.x, player.y - 40);
+	}
+	// Update and check asteroids
+	for (var i = asteroids.length - 1; i >= 0; i--) {
+		var asteroid = asteroids[i];
+		if (asteroid.lastY === undefined) asteroid.lastY = asteroid.y;
+		// Remove off-screen asteroids
+		if (asteroid.lastY < 2800 && asteroid.y >= 2800) {
+			asteroid.destroy();
+			asteroids.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (asteroid.intersects(player)) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+			return;
+		}
+		asteroid.lastY = asteroid.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;
+		// Remove off-screen enemies
+		if (enemy.lastY < 2800 && enemy.y >= 2800) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Enemy shooting
+		if (enemy.shoot()) {
+			createEnemyBullet(enemy.x, enemy.y + 30);
+		}
+		// Check collision with player
+		if (enemy.intersects(player)) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+			return;
+		}
+		enemy.lastY = enemy.y;
+	}
+	// 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 off-screen bullets
+		if (bullet.lastY > -50 && bullet.y <= -50) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with asteroids
+		var hitAsteroid = false;
+		for (var j = asteroids.length - 1; j >= 0; j--) {
+			if (bullet.intersects(asteroids[j])) {
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				asteroids[j].destroy();
+				asteroids.splice(j, 1);
+				LK.setScore(LK.getScore() + 50);
+				scoreTxt.setText('Score: ' + LK.getScore());
+				LK.getSound('explosion').play();
+				hitAsteroid = true;
+				break;
+			}
+		}
+		if (hitAsteroid) continue;
+		// Check collision with enemies
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			if (bullet.intersects(enemies[j])) {
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				enemies[j].destroy();
+				enemies.splice(j, 1);
+				LK.setScore(LK.getScore() + 100);
+				scoreTxt.setText('Score: ' + LK.getScore());
+				LK.getSound('explosion').play();
+				break;
+			}
+		}
+		bullet.lastY = bullet.y;
+	}
+	// Update and check enemy bullets
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var bullet = enemyBullets[i];
+		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
+		// Remove off-screen bullets
+		if (bullet.lastY < 2800 && bullet.y >= 2800) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (bullet.intersects(player)) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+			return;
+		}
+		bullet.lastY = bullet.y;
+	}
+	// 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;
+		// Remove off-screen power-ups
+		if (powerUp.lastY < 2800 && powerUp.y >= 2800) {
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (powerUp.intersects(player)) {
+			if (powerUp.type === 'special') {
+				player.specialAbilityCharges = Math.min(5, player.specialAbilityCharges + 1);
+				specialAbilityTxt.setText('Special: ' + player.specialAbilityCharges);
+			} else {
+				LK.setScore(LK.getScore() + 200);
+				scoreTxt.setText('Score: ' + LK.getScore());
+			}
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			LK.getSound('powerup').play();
+			continue;
+		}
+		powerUp.lastY = powerUp.y;
+	}
+};
+// Start background music
+LK.playMusic('bgmusic');
\ No newline at end of file