Bounce up to 200 multi colored balls on your screen. Set the number, press play, and you're away. The balls bounce using simulated gravity toward the bottom of the screen.
You can also temporarily add an attractor in both versions, just by tapping and holding the screen. The balls will gravitate toward your finger.
Great to keep the children and parents amused too.
Watching the balls is strangely hypnotic and relaxing.