Flying saucer
Flying saucers are objects found in the Caves of Skops, more precisely in Eat at Joe's in the original Rayman game. They are held by wires which make up Joe the Extra-Terrestrial's electricity system, and appear after Rayman has punched the plug that yields electric current to the whole system.
They start following the wire's path when Rayman jumps onto them. At intersections, it is sometimes possible to change the direction of the flying saucer by punching a lever.