===================================================================
--- original.js
+++ change.js
@@ -23,8 +23,18 @@
 			game.addChild(mini21);
 		}
 	};
 });
+var EnemyCube = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyCubeGraphics = self.attachAsset('enemyCube', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.update = function () {
+		// No specific update logic for the enemy cube
+	};
+});
 var Mini21 = Container.expand(function () {
 	var self = Container.call(this);
 	var mini21Graphics = self.attachAsset('mini21', {
 		anchorX: 0.5,
@@ -58,15 +68,22 @@
 });
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 var cube = game.addChild(new Cube());
+game.enemyCubeSpawned = false;
 cube.speedX = 10;
 cube.speedY = 10;
 cube.speedIncreased = false;
 cube.x = 2048 / 2;
 cube.y = 2732 / 2;
 game.update = function () {
-	if (LK.getScore() >= 100 && !cube.speedIncreased) {
+	if (LK.getScore() >= 150 && !game.enemyCubeSpawned) {
+		var enemyCube = new EnemyCube();
+		enemyCube.x = 2048 / 2;
+		enemyCube.y = 2732 / 2;
+		game.addChild(enemyCube);
+		game.enemyCubeSpawned = true;
+	} else if (LK.getScore() >= 100 && !cube.speedIncreased) {
 		cube.speedX *= 1.5;
 		cube.speedY *= 1.5;
 		cube.speedIncreased = true;
 	} else if (LK.getScore() >= 50) {