Mask of Terror
Trouble has got Kid Muscle's Line when he faces his first dMp challenger,Dialbolic. Roxanne might ring Kid Muscle's bells, but will she be enought tho inspire our reluctant hero to victory.
Aired 13/02/2002EP 6 - Mask of Terror

2002
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)