Rotate the platforms to get the bowling ball going. Once it gets going you'll need to guide the ball safely to the pins. Break all of the pins on a level to complete it.
Keyboard Controls: Use the left and right arrow keys or the A and D key to rotate the platforms counter-clockwise or clockwise. Touch or Mouse Controls - Touch or left mouse click on either the left or right side of the screen to rotate the platforms counterclockwise or clockwise.