Kinnikuman II Sei: Ultimate Muscle
Japanese title: キン肉マンII世 ULTIMATE MUSCLE
Type: TV
Episodes: 13
Premiered: spring 2004
Source: Manga
Genres: Comedy, Sci-Fi, Sports
Studios: Toei Animation
Duration: 24 min per ep
Rating: PG-13 - Teens 13 or older

The Chojin Crown, the tournament which Mantaro (Kid Muscle) reluctantly participates in. After going along with the obstacles (most of which were created to try and eliminate him), he qualified.

(Source: Wikipedia)