===================================================================
--- original.js
+++ change.js
@@ -1,19 +1,7 @@
 /**** 
 * Classes
 ****/ 
-// Define a 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;
-	};
-});
 // Define an Enemy class
 var Enemy = Container.expand(function () {
 	var self = Container.call(this);
 	var enemyBody = self.attachAsset('enemyBody', {
@@ -221,24 +209,13 @@
 	npc.x = Math.random() * 2048;
 	npc.y = Math.random() * 2732;
 	npcs.push(npc);
 }
-// Initialize bullets
-var bullets = [];
-// Handle player movement
 game.move = function (x, y, obj) {
 	player.x = x;
 	player.y = y;
 };
 // 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);
-};
-// Game update loop
 game.update = function () {
 	// Update enemies
 	for (var i = 0; i < enemies.length; i++) {
 		enemies[i].update();
@@ -254,24 +231,8 @@
 			}
 		}
 	}
 	// Update bullets
-	for (var j = bullets.length - 1; j >= 0; j--) {
-		bullets[j].update();
-		for (var k = enemies.length - 1; k >= 0; k--) {
-			if (bullets[j] && bullets[j].intersects(enemies[k])) {
-				bullets[j].destroy();
-				bullets.splice(j, 1);
-				enemies[k].destroy();
-				enemies.splice(k, 1);
-				break;
-			}
-		}
-		if (bullets[j] && bullets[j].y < -50) {
-			bullets[j].destroy();
-			bullets.splice(j, 1);
-		}
-	}
 };
 game.start = function () {
 	// Initialize player
 	var player = game.addChild(new Player());
@@ -299,24 +260,13 @@
 		npc.x = Math.random() * 2048;
 		npc.y = Math.random() * 2732;
 		npcs.push(npc);
 	}
-	// Initialize bullets
-	var bullets = [];
-	// Handle player movement
 	game.move = function (x, y, obj) {
 		player.x = x;
 		player.y = y;
 	};
 	// 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);
-	};
-	// Game update loop
 	game.update = function () {
 		// Update enemies
 		for (var i = 0; i < enemies.length; i++) {
 			enemies[i].update();
@@ -332,24 +282,8 @@
 				}
 			}
 		}
 		// Update bullets
-		for (var j = bullets.length - 1; j >= 0; j--) {
-			bullets[j].update();
-			for (var k = enemies.length - 1; k >= 0; k--) {
-				if (bullets[j] && bullets[j].intersects(enemies[k])) {
-					bullets[j].destroy();
-					bullets.splice(j, 1);
-					enemies[k].destroy();
-					enemies.splice(k, 1);
-					break;
-				}
-			}
-			if (bullets[j] && bullets[j].y < -50) {
-				bullets[j].destroy();
-				bullets.splice(j, 1);
-			}
-		}
 	};
 };
 game.showInstructions = function () {
 	var instructions = "Welcome to Night of the Massacre 2! \n\n" + "You are the yellow player. Use your mouse or touch to move around. \n\n" + "Click or tap to shoot bullets. \n\n" + "Your goal is to protect the NPCs (non-player characters) from the red enemies. \n\n" + "If an enemy touches you, it's game over! \n\n" + "Good luck!";