In this game a ball moves inside a square, and each side of the square has a specific color. You need to make sure the ball does not land on the side of the square that matches its own color. You can change the ball's direction and switch its color by tapping the screen. After each color change, the ball will also change its direction of movement. Your final score will be based on how many times you changed the ball's color. Try to score as many points as possible!