===================================================================
--- original.js
+++ change.js
@@ -33,16 +33,30 @@
 			blueBox.destroy();
 			var snow = game.addChild(new Snow());
 			snow.x = self.x;
 			snow.y = self.y;
+			var redBox = game.addChild(new RedBox());
+			redBox.x = Math.random() * 2048;
+			redBox.y = 2732;
 		}
 		if (self.intersects(button)) {
 			var yellowBox = game.addChild(new YellowBox());
 			yellowBox.x = blueBox.x;
 			yellowBox.y = blueBox.y;
 		}
 	};
 });
+var RedBox = Container.expand(function () {
+	var self = Container.call(this);
+	var redBoxGraphics = self.attachAsset('redBox', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -5;
+	self.update = function () {
+		self.y += self.speed;
+	};
+});
 var Snow = Container.expand(function () {
 	var self = Container.call(this);
 	var snowGraphics = self.attachAsset('snow', {
 		anchorX: 0.5,
@@ -83,8 +97,20 @@
 	glider.x = x;
 	glider.y = y;
 };
 game.update = function () {
+	game.update = function () {
+		if (!blueBox || blueBox.destroyed) {
+			blueBox = game.addChild(new BlueBox());
+			blueBox.x = 2048 / 2;
+			blueBox.y = 2732 / 5;
+		}
+		for (var i = game.children.length - 1; i >= 0; i--) {
+			if (game.children[i] instanceof RedBox && game.children[i].y < 0) {
+				game.children[i].destroy();
+			}
+		}
+	};
 	if (!blueBox || blueBox.destroyed) {
 		blueBox = game.addChild(new BlueBox());
 		blueBox.x = 2048 / 2;
 		blueBox.y = 2732 / 5;