Race: Alien Height: 820 cm Abilities: Acid Breath Level: Dragon Affiliation: Dark Matter Thieves Debut: Chapter 32/Episode 10 Groribas was one of the Alien Invaders who attacked A-City. Groribas is an alien with a large imposing body. Its head and hands consist of eyeless mouths with rows of long sharp teeth. His head has a spiky dog collar around his neck. (Source: OnePunch-Man Wikia)