A crab chōjin. In the 20th Chojin Olympics preliminaries, the fighters had to participate in a game of Rock-paper-scissors. Kinnikuman took on Kani Base who because he had pincers for hands could only choose scissors, Kinnikuman chose rock and beat him. Before the 21st Olympics he had his pincers changed to hands, and lost again when Kinnikuman chose scissors. Friends with Kinkotsuman and Iwao. Named Buster Crabb in Ultimate Muscle.