===================================================================
--- original.js
+++ change.js
@@ -37,8 +37,24 @@
 	self.update = function () {
 		// Fairy movement logic
 	};
 });
+// Star class
+var Star = Container.expand(function () {
+	var self = Container.call(this);
+	var starGraphics = self.attachAsset('star', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 5;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.y = -5;
+			self.x = Math.random() * 2048;
+		}
+	};
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -67,8 +83,14 @@
 	scoreTxt = new Text2('0', {
 		size: 150,
 		fill: "#ffffff"
 	});
+	// Create starfield
+	for (var i = 0; i < 500; i++) {
+		var star = game.addChild(new Star());
+		star.x = Math.random() * 2048;
+		star.y = Math.random() * 2732;
+	}
 	scoreTxt.anchor.set(0.5, 0);
 	LK.gui.top.addChild(scoreTxt);
 	// Set up game event listeners
 	game.down = function (x, y, obj) {
@@ -96,8 +118,14 @@
 	}
 }
 // Update game logic
 function updateGame() {
+	// Update starfield
+	for (var i = game.children.length - 1; i >= 0; i--) {
+		if (game.children[i] instanceof Star) {
+			game.children[i].update();
+		}
+	}
 	// Update bullets
 	for (var i = bullets.length - 1; i >= 0; i--) {
 		bullets[i].update();
 		if (bullets[i].y < -50) {