Roxanne Rocks!
Roxanne is captured by the remaining members of the DMP in order to get Kid Muscle to battle them. But they got more than they barganed for when Kid Muscle will do anything to get Roxanne back!
Aired 01/05/2002EP 17 - Roxanne Rocks!

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)