Use the mouse pointer/finger to move the ball to finish. The distance between the ball and your mouse makes the ball faster when the distance is far. The game contains 41 levels, I am still working on 9 more. On a scale of 1-10, the difficulty will be like: -Blue: 2 -Green: 4.6 -Yellow: 6.5 -Orange: 7.75 Hold space for volume settings.