Snake Mysterious Beast Hebyusa is a monster in B-Fighter Kabuto. Hebyusa is a monster that resembles a gorgon, but has snake-headed tendrils. She was sent to obtain the case that contained the Insect Medals. Though she was killed by Takuya Kai, her tendrils infected the B-Fighters with her venom which turned the First Generation of B-Fighters and the New Generation of B-Fighters against each other until the viral venom is removed from their commanders.