Collect the falling balls of the same color in groups of 4 or more turning the wheel on the game field. Do not let the balls fill up the wheel. With each level the balls will fall faster and faster. Among the falling balls you can get universal balls, balls to increase the number of lives and bomb balls.To increase the number of lives you need to touch the ball with the heart. You can choose from three game modes - more complex mode faster speeds will drop balls.
You can try free version before - https://play.google.com/store/apps/details?id=uzza.ballsAD.