===================================================================
--- original.js
+++ change.js
@@ -1,105 +1,117 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // 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 = -15;
-  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 = -15;
+	self.update = function () {
+		self.y += self.speed;
+	};
 });
 // Enemy class
 var Enemy = Container.expand(function () {
-  var self = Container.call(this);
-  var enemyGraphics = self.attachAsset('enemy', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 5;
-  self.update = function () {
-    self.y += self.speed;
-    if (self.y > 2732) {
-      self.y = 0;
-      self.x = Math.random() * 2048;
-    }
-  };
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 5;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.y = 0;
+			self.x = Math.random() * 2048;
+		}
+	};
 });
 //<Assets used in the game will automatically appear here>
 //<Write imports for supported plugins here>
 // Hero class
 var Hero = Container.expand(function () {
-  var self = Container.call(this);
-  var heroGraphics = self.attachAsset('hero', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 10;
-  self.update = function () {
-    // Hero update logic
-  };
+	var self = Container.call(this);
+	var heroGraphics = self.attachAsset('hero', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 10;
+	self.update = function () {
+		// Hero 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 hero
 var hero = game.addChild(new Hero());
 hero.x = 1024;
 hero.y = 2500;
 // Initialize enemies
 var enemies = [];
 for (var i = 0; i < 5; i++) {
-  var enemy = new Enemy();
-  enemy.x = Math.random() * 2048;
-  enemy.y = Math.random() * 1000;
-  enemies.push(enemy);
-  game.addChild(enemy);
+	var enemy = new Enemy();
+	enemy.x = Math.random() * 2048;
+	enemy.y = Math.random() * 1000;
+	enemies.push(enemy);
+	game.addChild(enemy);
 }
 // Initialize bullets
 var bullets = [];
 // Handle game move event
 game.move = function (x, y, obj) {
-  hero.x = x;
-  hero.y = y;
+	hero.x = x;
+	hero.y = y;
 };
 // Handle game update event
 game.update = function () {
-  // Update bullets
-  for (var i = bullets.length - 1; i >= 0; i--) {
-    var bullet = bullets[i];
-    bullet.update();
-    if (bullet.y < 0) {
-      bullet.destroy();
-      bullets.splice(i, 1);
-    }
-  }
-  // Update enemies
-  for (var j = 0; j < enemies.length; j++) {
-    var enemy = enemies[j];
-    enemy.update();
-    if (hero.intersects(enemy)) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-  }
-  // Fire bullets
-  if (LK.ticks % 20 == 0) {
-    var newBullet = new Bullet();
-    newBullet.x = hero.x;
-    newBullet.y = hero.y;
-    bullets.push(newBullet);
-    game.addChild(newBullet);
-  }
+	// Update bullets
+	for (var i = bullets.length - 1; i >= 0; i--) {
+		var bullet = bullets[i];
+		bullet.update();
+		if (bullet.y < 0) {
+			bullet.destroy();
+			bullets.splice(i, 1);
+		}
+	}
+	// Update enemies
+	for (var j = enemies.length - 1; j >= 0; j--) {
+		var enemy = enemies[j];
+		enemy.update();
+		if (hero.intersects(enemy)) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+		// Check for bullet collision
+		for (var k = bullets.length - 1; k >= 0; k--) {
+			var bullet = bullets[k];
+			if (bullet.intersects(enemy)) {
+				// Destroy bullet and enemy
+				bullet.destroy();
+				bullets.splice(k, 1);
+				enemy.destroy();
+				enemies.splice(j, 1);
+				break;
+			}
+		}
+	}
+	// Fire bullets
+	if (LK.ticks % 20 == 0) {
+		var newBullet = new Bullet();
+		newBullet.x = hero.x;
+		newBullet.y = hero.y;
+		bullets.push(newBullet);
+		game.addChild(newBullet);
+	}
 };
\ No newline at end of file