This game's title comes from the futuristic prison robots that take part in its violent competitions. The robots have no legs and instead move around suspended over large rolling spheres for which they are nicknamed. These mighty robots do battle through all sorts of competitions in a variety of appropriate pseudo-3D environments. Competition types are as varied as the battlefields and include races against the clock, King of the Hill styled strategy battles, and all out destruction derbies. ~ T.J. Deci, All Game Guide