You control a square whose sides are different colors. Colorful balls fall from above, and you need to rotate the square to the correct side to catch them. The color of the square's side and the color of the ball must match. You can rotate the square by tapping one of the sides of the screen. Stay alert, quickly and correctly rotate the square so that the balls land on the right part of it. Your final score will be based on the number of balls you have collected.