===================================================================
--- original.js
+++ change.js
@@ -1,101 +1,129 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // Define the Bullet class
 var Bullet = Container.expand(function () {
-  var self = Container.call(this);
-  var bulletGraphics = self.attachAsset('bullet', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = -10;
-  self.update = function () {
-    self.y += self.speed;
-  };
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -10;
+	self.update = function () {
+		self.y += self.speed;
+	};
 });
 // Define the Enemy class
 var Enemy = Container.expand(function () {
-  var self = Container.call(this);
-  var enemyGraphics = self.attachAsset('enemyShip', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.update = function () {
-    // Enemy update logic
-  };
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemyShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.update = function () {
+		// Enemy update logic
+		// Fire bullet every 60 ticks
+		if (LK.ticks % 60 == 0) {
+			var newBullet = new EnemyBullet();
+			newBullet.x = self.x;
+			newBullet.y = self.y;
+			game.addChild(newBullet);
+		}
+	};
 });
+// Define the EnemyBullet class
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 10;
+	self.update = function () {
+		self.y += self.speed;
+	};
+});
 //<Assets used in the game will automatically appear here>
 //<Write imports for supported plugins here>
 // Define the Player class
 var Player = Container.expand(function () {
-  var self = Container.call(this);
-  var playerGraphics = self.attachAsset('playerShip', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.update = function () {
-    // Player update logic
-  };
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('playerShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.update = function () {
+		// Player update logic
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background 
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 // Initialize player
 var player = game.addChild(new Player());
 player.x = 2048 / 2;
 player.y = 2732 - 200;
 // Initialize enemies
 var enemies = [];
 for (var i = 0; i < 5; i++) {
-  var enemy = new Enemy();
-  enemy.x = 400 + i * 300;
-  enemy.y = 200;
-  enemies.push(enemy);
-  game.addChild(enemy);
+	var enemy = new Enemy();
+	enemy.x = 400 + i * 300;
+	enemy.y = 200;
+	enemies.push(enemy);
+	game.addChild(enemy);
 }
 // Initialize bullets
 var bullets = [];
 // Handle shooting
 game.down = function (x, y, obj) {
-  var bullet = new Bullet();
-  bullet.x = player.x;
-  bullet.y = player.y;
-  bullets.push(bullet);
-  game.addChild(bullet);
+	var bullet = new Bullet();
+	bullet.x = player.x;
+	bullet.y = player.y;
+	bullets.push(bullet);
+	game.addChild(bullet);
 };
 // Update game state
 game.update = function () {
-  // Update bullets
-  for (var i = bullets.length - 1; i >= 0; i--) {
-    var bullet = bullets[i];
-    bullet.update();
-    if (bullet.y < -50) {
-      bullet.destroy();
-      bullets.splice(i, 1);
-    }
-  }
-  // Update enemies
-  for (var j = 0; j < enemies.length; j++) {
-    var enemy = enemies[j];
-    enemy.update();
-    // Check for collision with bullets
-    for (var k = bullets.length - 1; k >= 0; k--) {
-      var bullet = bullets[k];
-      if (bullet.intersects(enemy)) {
-        bullet.destroy();
-        bullets.splice(k, 1);
-        enemy.destroy();
-        enemies.splice(j, 1);
-        break;
-      }
-    }
-  }
+	// Update bullets
+	for (var i = bullets.length - 1; i >= 0; i--) {
+		var bullet = bullets[i];
+		bullet.update();
+		if (bullet.y < -50) {
+			bullet.destroy();
+			bullets.splice(i, 1);
+		}
+	}
+	// Update enemies
+	for (var j = 0; j < enemies.length; j++) {
+		var enemy = enemies[j];
+		enemy.update();
+		// Check for collision with bullets
+		for (var k = bullets.length - 1; k >= 0; k--) {
+			var bullet = bullets[k];
+			if (bullet.intersects(enemy)) {
+				bullet.destroy();
+				bullets.splice(k, 1);
+				enemy.destroy();
+				enemies.splice(j, 1);
+				break;
+			}
+		}
+	}
+	// Check for collision with enemy bullets
+	for (var l = game.children.length - 1; l >= 0; l--) {
+		var child = game.children[l];
+		if (child instanceof EnemyBullet && child.intersects(player)) {
+			child.destroy();
+			LK.showGameOver();
+			break;
+		}
+	}
 };
\ No newline at end of file