Also known as: KUROMARU, kuromaru, クロマル
Infamous M.U.G.E.N hentai character. It is a dark-skinned giant Eyeball Monster that can transform into various objects or creatures to rape defeated opponents.
After Kuromaru was released, some character creators started turning M.U.G.E.N into a hentai fighting game by making a dozens of hentai characters, or converting other characters to be compatible with hentai moves.