On a square field objects fly red and green, being reflected from walls. The player operates a blue ball, which goes much more slowly than other objects, but, as against them it is not limited to walls, and, having reached edge, occurs from the opposite side.
It is necessary to catch green objects and to not be crossed with red. Periodically on a field there are also others objects.
Operating System Support: Win95, Win98, WinME, WinXP, Windows2000