This is an 8-bit music game that uses physics to create music. It is the smart uses of every object on the stage that turns the sounds from noise to music.
Please view the tut or you wouldn't know what to do.
Its important to note that you have to click on plus button on the objects at the top of the screen to start the balls falling. This plus and the minus key set the rate that the balls drop at. Also remember that you can scroll left and right by clicking and dragging on the hub at the top of the screen.