===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,335 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+// Enemy Bullet
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bullet = self.attachAsset('enemyBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 18;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Enemy Ship
+var EnemyShip = Container.expand(function () {
+	var self = Container.call(this);
+	var enemy = self.attachAsset('enemyShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.width = enemy.width;
+	self.height = enemy.height;
+	self.speedY = 6 + Math.random() * 4;
+	self.speedX = (Math.random() - 0.5) * 6;
+	self.shootCooldown = 60 + Math.floor(Math.random() * 60);
+	self.update = function () {
+		self.y += self.speedY;
+		self.x += self.speedX;
+		if (self.x < self.width / 2) {
+			self.x = self.width / 2;
+			self.speedX *= -1;
+		}
+		if (self.x > 2048 - self.width / 2) {
+			self.x = 2048 - self.width / 2;
+			self.speedX *= -1;
+		}
+		if (self.shootCooldown > 0) {
+			self.shootCooldown--;
+		}
+	};
+	return self;
+});
+// Player Bullet
+var PlayerBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bullet = self.attachAsset('playerBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -32;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Player Ship
+var PlayerShip = Container.expand(function () {
+	var self = Container.call(this);
+	var ship = self.attachAsset('playerShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.width = ship.width;
+	self.height = ship.height;
+	self.shootCooldown = 0;
+	self.poweredUp = false;
+	self.powerupTimer = 0;
+	self.update = function () {
+		if (self.shootCooldown > 0) self.shootCooldown--;
+		if (self.poweredUp) {
+			self.powerupTimer--;
+			if (self.powerupTimer <= 0) {
+				self.poweredUp = false;
+				ship.tint = 0x33c1ff;
+			}
+		}
+	};
+	self.activatePowerup = function () {
+		self.poweredUp = true;
+		self.powerupTimer = 360; // 6 seconds at 60fps
+		ship.tint = 0x44ff44;
+	};
+	return self;
+});
+// Powerup
+var Powerup = Container.expand(function () {
+	var self = Container.call(this);
+	var p = self.attachAsset('powerup', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speedY = 10;
+	self.update = function () {
+		self.y += self.speedY;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x181828
+});
+
+/**** 
+* Game Code
+****/ 
+// Music
+// Sound effects
+// Powerup: green ellipse
+// Enemy bullet: small red box
+// Player bullet: small yellow box
+// Enemy: pixelated box
+// Player ship: pixelated box
+// Play music
+LK.playMusic('bgmusic', {
+	fade: {
+		start: 0,
+		end: 1,
+		duration: 1200
+	}
+});
+// Score display
+var scoreTxt = new Text2('0', {
+	size: 120,
+	fill: "#fff"
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Powerup display
+var powerupTxt = new Text2('', {
+	size: 70,
+	fill: 0x44FF44
+});
+powerupTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(powerupTxt);
+powerupTxt.y = 120;
+// Game objects
+var player = new PlayerShip();
+game.addChild(player);
+player.x = 2048 / 2;
+player.y = 2732 - 180;
+var playerBullets = [];
+var enemies = [];
+var enemyBullets = [];
+var powerups = [];
+var dragNode = null;
+var lastPlayerHit = false;
+var spawnTimer = 0;
+var powerupSpawnTimer = 600; // 10 seconds
+// Move handler for dragging player ship
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		// Clamp to game area
+		var minX = player.width / 2 + 40;
+		var maxX = 2048 - player.width / 2 - 40;
+		dragNode.x = Math.max(minX, Math.min(maxX, x));
+		// Y is fixed at bottom
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	// Only allow drag if touch is near player
+	if (Math.abs(x - player.x) < player.width && Math.abs(y - player.y) < player.height) {
+		dragNode = player;
+		handleMove(x, y, obj);
+	}
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Touch anywhere to shoot
+game.tap = function (x, y, obj) {
+	// Not used, as shooting is auto-fire
+};
+// Main update loop
+game.update = function () {
+	// Player update
+	player.update();
+	// Player auto-fire
+	if (player.shootCooldown <= 0) {
+		var bullet = new PlayerBullet();
+		bullet.x = player.x;
+		bullet.y = player.y - player.height / 2 - 20;
+		playerBullets.push(bullet);
+		game.addChild(bullet);
+		player.shootCooldown = player.poweredUp ? 6 : 16;
+		LK.getSound('shoot').play();
+		if (player.poweredUp) {
+			// Side bullets
+			for (var i = -1; i <= 1; i += 2) {
+				var sideBullet = new PlayerBullet();
+				sideBullet.x = player.x + i * 50;
+				sideBullet.y = player.y - player.height / 2 - 20;
+				playerBullets.push(sideBullet);
+				game.addChild(sideBullet);
+			}
+		}
+	}
+	// Update player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var b = playerBullets[i];
+		b.update();
+		if (b.y < -60) {
+			b.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with enemies
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var e = enemies[j];
+			if (b.intersects(e)) {
+				LK.setScore(LK.getScore() + 10);
+				scoreTxt.setText(LK.getScore());
+				LK.getSound('explosion').play();
+				LK.effects.flashObject(e, 0xffffff, 200);
+				e.destroy();
+				enemies.splice(j, 1);
+				b.destroy();
+				playerBullets.splice(i, 1);
+				break;
+			}
+		}
+	}
+	// Update enemies
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var e = enemies[i];
+		e.update();
+		if (e.y > 2732 + 100) {
+			e.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Enemy shooting
+		if (e.shootCooldown <= 0) {
+			var eb = new EnemyBullet();
+			eb.x = e.x;
+			eb.y = e.y + e.height / 2 + 10;
+			enemyBullets.push(eb);
+			game.addChild(eb);
+			e.shootCooldown = 90 + Math.floor(Math.random() * 60);
+			LK.getSound('enemyShoot').play();
+		}
+	}
+	// Update enemy bullets
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var eb = enemyBullets[i];
+		eb.update();
+		if (eb.y > 2732 + 60) {
+			eb.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (eb.intersects(player)) {
+			if (!player.poweredUp) {
+				if (!lastPlayerHit) {
+					LK.effects.flashScreen(0xff0000, 800);
+					LK.showGameOver();
+					lastPlayerHit = true;
+				}
+			} else {
+				eb.destroy();
+				enemyBullets.splice(i, 1);
+			}
+		}
+	}
+	// Update powerups
+	for (var i = powerups.length - 1; i >= 0; i--) {
+		var p = powerups[i];
+		p.update();
+		if (p.y > 2732 + 80) {
+			p.destroy();
+			powerups.splice(i, 1);
+			continue;
+		}
+		if (p.intersects(player)) {
+			player.activatePowerup();
+			LK.getSound('powerup').play();
+			powerupTxt.setText('POWER UP!');
+			tween(powerupTxt, {
+				alpha: 0
+			}, {
+				duration: 1200,
+				easing: tween.linear,
+				onFinish: function onFinish() {
+					powerupTxt.setText('');
+					powerupTxt.alpha = 1;
+				}
+			});
+			p.destroy();
+			powerups.splice(i, 1);
+		}
+	}
+	// Enemy spawn
+	spawnTimer--;
+	if (spawnTimer <= 0) {
+		var e = new EnemyShip();
+		e.x = 200 + Math.random() * (2048 - 400);
+		e.y = -100;
+		enemies.push(e);
+		game.addChild(e);
+		spawnTimer = Math.max(24, 90 - Math.floor(LK.getScore() / 100)); // Faster spawns as score increases
+	}
+	// Powerup spawn
+	powerupSpawnTimer--;
+	if (powerupSpawnTimer <= 0) {
+		var p = new Powerup();
+		p.x = 200 + Math.random() * (2048 - 400);
+		p.y = -80;
+		powerups.push(p);
+		game.addChild(p);
+		powerupSpawnTimer = 900 + Math.floor(Math.random() * 600); // 15-25 seconds
+	}
+	// Win condition: score 1000
+	if (LK.getScore() >= 1000) {
+		LK.showYouWin();
+	}
+	// Reset lastPlayerHit if game is running
+	if (!LK.isGameOver()) {
+		lastPlayerHit = false;
+	}
+};
+// Initial score
+LK.setScore(0);
+scoreTxt.setText('0');
\ No newline at end of file