===================================================================
--- original.js
+++ change.js
@@ -5,30 +5,37 @@
 
 /**** 
 * Classes
 ****/ 
-// Class for enemy ships
+// Class for enemy ships with wave-based spawning and better animation
 var EnemyShip = Container.expand(function () {
 	var self = Container.call(this);
 	var enemyGraphics = self.attachAsset('enemyShip', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	// Spawn animation: scale up from 0 to 1
+	// Spawn animation: Fade in & Scale up
 	enemyGraphics.scale.set(0);
+	enemyGraphics.alpha = 0;
 	tween(enemyGraphics.scale, {
 		x: 1,
 		y: 1
 	}, {
 		duration: 500
 	});
-	self.speed = 5;
+	tween(enemyGraphics, {
+		alpha: 1
+	}, {
+		duration: 500
+	});
+	self.speed = 3 + Math.random() * 2; // Slight variation in speed
+	self.driftAmount = 3; // Side drift range
+	self.driftSpeed = 50 + Math.random() * 20; // Slight variation in drift speed
 	self.update = function () {
 		self.y += self.speed;
-		// Side-to-side drift: move left and right while moving down
-		self.x += Math.sin(LK.ticks / 30) * 2;
+		self.x += Math.sin(LK.ticks / self.driftSpeed) * self.driftAmount;
+		// Destroy if off-screen with fade-out effect
 		if (self.y > 2732 + enemyGraphics.height / 2) {
-			// Destroy animation: fade out before destroying
 			tween(enemyGraphics, {
 				alpha: 0
 			}, {
 				duration: 500,
@@ -39,9 +46,9 @@
 			});
 		}
 	};
 });
-// Class for player bullets
+// Class for player bullets with proper destruction
 var PlayerBullet = Container.expand(function () {
 	var self = Container.call(this);
 	var bulletGraphics = self.attachAsset('playerBullet', {
 		anchorX: 0.5,
@@ -55,29 +62,34 @@
 			playerBullets.splice(playerBullets.indexOf(self), 1);
 		}
 	};
 });
-//<Assets used in the game will automatically appear here>
-// Class for the player's ship
+// Class for the player's ship with shooting cooldown
 var PlayerShip = Container.expand(function () {
 	var self = Container.call(this);
 	var shipGraphics = self.attachAsset('playerShip', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.speed = 10;
+	self.canShoot = true; // Prevents spam shooting
+	self.shootCooldown = 300; // 300ms cooldown
 	self.shoot = function () {
-		var bullet = new PlayerBullet();
-		bullet.x = self.x;
-		bullet.y = self.y - shipGraphics.height / 2;
-		game.addChild(bullet);
-		playerBullets.push(bullet);
+		if (self.canShoot) {
+			var bullet = new PlayerBullet();
+			bullet.x = self.x;
+			bullet.y = self.y - shipGraphics.height / 2;
+			game.addChild(bullet);
+			playerBullets.push(bullet);
+			self.canShoot = false;
+			setTimeout(function () {
+				self.canShoot = true;
+			}, self.shootCooldown);
+		}
 	};
 	self.update = function () {
-		// Check if the player's ship intersects with any enemy ship
 		for (var i = 0; i < enemyShips.length; i++) {
 			if (self.intersects(enemyShips[i])) {
-				// If the player's ship intersects with an enemy ship, end the game
 				LK.showGameOver();
 			}
 		}
 	};
@@ -86,36 +98,50 @@
 /**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000
 });
 
 /**** 
 * Game Code
 ****/ 
-//<Assets used in the game will automatically appear here>
-// Arrays to keep track of game objects
+/**** 
+* Game Logic
+****/ 
 var playerBullets = [];
 var enemyShips = [];
-// Create player ship
 var player = game.addChild(new PlayerShip());
 player.x = 2048 / 2;
 player.y = 2732 - 200;
-// Create a score display
+// Score Display
 var scoreText = new Text2('0', {
 	size: 150,
 	fill: 0xFFFFFF
 });
 scoreText.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreText);
-// Function to spawn enemies
+// Wave Variables
+var waveNumber = 1;
+var enemiesPerWave = 5;
+var enemiesSpawned = 0;
+// Function to spawn enemies in waves
 function spawnEnemy() {
-	var enemy = new EnemyShip();
-	enemy.x = Math.random() * 2048;
-	enemy.y = -100;
-	game.addChild(enemy);
-	enemyShips.push(enemy);
+	if (enemiesSpawned < enemiesPerWave) {
+		var enemy = new EnemyShip();
+		enemy.x = Math.random() * 2048;
+		enemy.y = -100;
+		game.addChild(enemy);
+		enemyShips.push(enemy);
+		enemiesSpawned++;
+	} else if (enemyShips.length === 0) {
+		// Start next wave when all enemies are destroyed
+		setTimeout(function () {
+			waveNumber++;
+			enemiesPerWave += 2; // Increase difficulty each wave
+			enemiesSpawned = 0;
+		}, 1000);
+	}
 }
 // Game update loop
 game.update = function () {
 	// Update player bullets
@@ -128,14 +154,21 @@
 	}
 	// Check for collisions between player bullets and enemy ships
 	for (var k = playerBullets.length - 1; k >= 0; k--) {
 		for (var l = enemyShips.length - 1; l >= 0; l--) {
-			if (playerBullets[k].intersects(enemyShips[l])) {
+			if (playerBullets[k] && enemyShips[l] && playerBullets[k].intersects(enemyShips[l])) {
+				tween(enemyShips[l], {
+					alpha: 0
+				}, {
+					duration: 300,
+					onFinish: function onFinish() {
+						enemyShips[l].destroy();
+						enemyShips.splice(l, 1);
+					}
+				});
 				playerBullets[k].destroy();
-				enemyShips[l].destroy();
 				playerBullets.splice(k, 1);
-				enemyShips.splice(l, 1);
-				// Update the score
+				// Update score
 				LK.setScore(LK.getScore() + 1);
 				scoreText.setText(LK.getScore());
 				break;
 			}
@@ -145,9 +178,9 @@
 	if (LK.ticks % 60 === 0) {
 		spawnEnemy();
 	}
 };
-// Handle player ship movement
+// Handle player movement
 game.move = function (x, y, obj) {
 	player.x = x;
 };
 // Handle shooting