Simulates collision detection. Bubbles and bubbles move around the screen to resolve collisions. A new simulation is initiated each time the home screen is displayed. Two drawing modes are available. Fill or Do not fill.

(To set up a Live Wallpaper you need to do as follows)
1. Tap and hold on an empty place on the home screen.
2. Select Wallpaper and Live Wallpaper from the opened window.