===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,196 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var EnemyShip = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemyShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3;
+	self.movePattern = Math.random() < 0.5 ? 'straight' : 'zigzag';
+	self.zigzagTimer = 0;
+	self.zigzagDirection = Math.random() < 0.5 ? -1 : 1;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.movePattern === 'zigzag') {
+			self.zigzagTimer += 1;
+			if (self.zigzagTimer % 60 === 0) {
+				self.zigzagDirection *= -1;
+			}
+			self.x += self.zigzagDirection * 2;
+		}
+		// Keep enemy within screen bounds
+		if (self.x < 50) self.x = 50;
+		if (self.x > 1998) self.x = 1998;
+	};
+	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
+	});
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000011
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var playerShip;
+var playerBullets = [];
+var enemyShips = [];
+var difficultyLevel = 1;
+var enemySpawnRate = 120; // frames between spawns
+var bulletFireRate = 15; // frames between shots
+var dragNode = null;
+// 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
+playerShip = game.addChild(new PlayerShip());
+playerShip.x = 1024; // Center horizontally
+playerShip.y = 2400; // Near bottom of screen
+// Update score display
+function updateScore() {
+	scoreTxt.setText('Score: ' + LK.getScore());
+}
+// Handle movement
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		dragNode.x = x;
+		dragNode.y = y;
+		// Keep player within screen bounds
+		if (dragNode.x < 40) dragNode.x = 40;
+		if (dragNode.x > 2008) dragNode.x = 2008;
+		if (dragNode.y < 200) dragNode.y = 200;
+		if (dragNode.y > 2600) dragNode.y = 2600;
+	}
+}
+// Event handlers
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	dragNode = playerShip;
+	handleMove(x, y, obj);
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Main game update loop
+game.update = function () {
+	// Fire player bullets
+	if (LK.ticks % bulletFireRate === 0) {
+		var newBullet = new PlayerBullet();
+		newBullet.x = playerShip.x;
+		newBullet.y = playerShip.y - 60;
+		newBullet.lastY = newBullet.y;
+		playerBullets.push(newBullet);
+		game.addChild(newBullet);
+		LK.getSound('shoot').play();
+	}
+	// Spawn enemies
+	if (LK.ticks % enemySpawnRate === 0) {
+		var newEnemy = new EnemyShip();
+		newEnemy.x = Math.random() * 1800 + 124; // Random x position within bounds
+		newEnemy.y = -50;
+		newEnemy.lastY = newEnemy.y;
+		newEnemy.lastIntersecting = false;
+		enemyShips.push(newEnemy);
+		game.addChild(newEnemy);
+	}
+	// Update and check player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var bullet = playerBullets[i];
+		// Remove bullets that go off screen
+		if (bullet.lastY >= -25 && bullet.y < -25) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check bullet-enemy collisions
+		var bulletHit = false;
+		for (var j = enemyShips.length - 1; j >= 0; j--) {
+			var enemy = enemyShips[j];
+			if (bullet.intersects(enemy)) {
+				// Destroy both bullet and enemy
+				LK.setScore(LK.getScore() + 10);
+				updateScore();
+				LK.getSound('enemyDestroy').play();
+				// Flash effect on enemy
+				LK.effects.flashObject(enemy, 0xffffff, 200);
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				enemy.destroy();
+				enemyShips.splice(j, 1);
+				bulletHit = true;
+				break;
+			}
+		}
+		if (!bulletHit) {
+			bullet.lastY = bullet.y;
+		}
+	}
+	// Update and check enemies
+	for (var k = enemyShips.length - 1; k >= 0; k--) {
+		var enemy = enemyShips[k];
+		// Remove enemies that go off screen
+		if (enemy.lastY <= 2780 && enemy.y > 2780) {
+			enemy.destroy();
+			enemyShips.splice(k, 1);
+			continue;
+		}
+		// Check player-enemy collision
+		var currentIntersecting = enemy.intersects(playerShip);
+		if (!enemy.lastIntersecting && currentIntersecting) {
+			// Game over
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+			return;
+		}
+		enemy.lastY = enemy.y;
+		enemy.lastIntersecting = currentIntersecting;
+	}
+	// Increase difficulty over time
+	if (LK.ticks % 1800 === 0) {
+		// Every 30 seconds
+		difficultyLevel++;
+		if (enemySpawnRate > 30) {
+			enemySpawnRate -= 10;
+		}
+		if (bulletFireRate > 8 && difficultyLevel % 3 === 0) {
+			bulletFireRate -= 1;
+		}
+	}
+};
+// Start background music
+LK.playMusic('gameMusic');
\ No newline at end of file