The object of the game is to use bouncing balls to clear all the notes on a stage. Each level has a maximum amount of ball gates you can open. Once you're done with the game's 50 levels, check out letsmakeagame.com to play user-created levels and make your own!

Click on a number gate to release a ball from that gate. The number on the gate shows the beat on which the ball leaves the gate. Each level has a maximum amount of gates that can be openned. A ball must hit a block once in order for it to be clear (twice for dark-colored blocks). When a block is hit, a loading bar appears where it was. Once 8 beats have passed, the block will reappear. The object of the game is to have all the blocks cleared (even for just a little bit). The trick is to find which gates to open and at what times. Good luck!