Karbunkle is a god-only-knows-what from nobody-knows-where, and he's almost completely nuts to boot. Word of God has it that Karbunkle's origins may be rooted in World War II, perhaps as a German scientist gone mad. As noted, Karbunkle experimented on the Biker Mice when they were captured, and he's responsible for their Cursed with Awesome cybernetic implants.He returns in the revival, again serving Limburger, though he much later ends up assisting Ronaldo Rump and the Catatonians.