Three Feet Heat
After Terry ""The Grand"" Kenyon Loses To Jeager In The Catch The Falling Person Game, The Next Challenge To Qualify For The Finals Is The Three-Legged Obstacle Race Where A Chojin A Paired Up With A Non-Chojin And Have To Finish In The Top 12. Kid Muscle Gets Stuck With A Sumo Wrestler Named Sasaki. Can Kid Muscle Get To The Top 12 In Order To Qualify For The Finals.
Aired 06/11/2002EP 44 - Three Feet Heat

Ultimate Muscle
Kid Muscle (or Mantaro for short) is a bumbling, gross, and wimpy sort-of person. Unfortunately, he has been summoned to protect the earth from the evil dMp, a band of cheating wrestlers from outer space. Luckily he's not undertaking this task alone. Kid Muscle must join the Muscle League, a group of wrestlers from outer space who are training themselves so they can defend the earth, and stop the dMp by achieving "Ultimate Muscle", a hidden power that makes Mantaro an almost unbeatable opponent.
(Source: Anime News Network)