Mazinkaiser: Shitou! Ankoku Dai Shogun
English name: Mazinkaiser: Deathmatch! General Dark
Genres: Action
Type: OVA, Episodes: 1
Aired: Jul 25, 2003
Studio: Brain's Base
Source: Manga
Rating: R - 17+ (violence & profanity)
Synopsis:
Koji is on holiday when the 7 generals from Mikene attacks the world, under the leadership of the general of darkness.How will Koji be able to stop them...

(Source: AniDB)