Perpetuum mobile realizes continually moving and rotating balls. With sound-output originates such a music-piece that proceeds from start until end in equally swift speed. Up to 500 balls jump in an area around. The ball-movement can take place with gravity dynamically. As spectator-position can be selected the screen, the room-middle, a ball or an elevator. Hereby special visual and acoustic effects come to the validity. The user can plan diverse attitudes over six dialog-sides and save these into a file. The further can be started a small reaction-game and a screensaver.