Kinnikuman: Seigi Choujin vs. Senshi Choujin
Japanese title: キン肉マン 正義超人ＶＳ戦士超人
Type: Movie
Episodes: 1
Source: Manga
Genres: Comedy, Sports
Studios: Toei Animation
Duration: 50 min
Rating: PG-13 - Teens 13 or older

Meat-kun has been kidnapped by Iron Mask. In order to save Meat-kun, the treasure of Inmora Island is needed. Furthermore, the treasure is hidden in the Seven Story Tower, which is guarded by the brutal Senshi Choujins. When Kinnikuman asks Terryman and the Seigi Choujins to help him, for some reason they all refuse. Alone, Kinnikuman heads to Inmora Island to fight the Senshi Chōjin and is overwhelmed by their great numbers.

(Source: Kinnikuman Wiki)