Souten no Ken Specials
English title: Fist of the Blue Sky Specials
Japanese title: 蒼天の拳
Type: Special
Episodes: 4
Source: Manga
Genres: Action
Studios: APPP
Producers: TV Asahi
Duration: 30 min per ep
Rating: R - 17+ (violence & profanity)

Episodes 16, 17, 18 and 21 of the Souten no Ken anime series, which were not originally aired, but released on DVD. Because of this, these episodes are uncut/uncensored.

(Source: Wikipedia)