BUSTER, a retired 340 pound super heavyweight robot, competed in remote control robot battles. Machined out of a solid piece of titanium, the spinning bar weighs 80 pounds and spins at about 2,500 RPM. The replaceable orange axe heads are S7 tool steel. To the right is a video from a competition in 2005 when Buster defeated the infamous and destructive top-ranked Super Megabyte full body spinner.