Joker: Marginal City
Japanese title: JOKER マージナル・シティ
Alternative titles: J0ker
Type: OVA
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Apr 21, 1992
Duration: 36 min
Rating: R - 17+ (violence & profanity)
Studios: Studio Sign
Producers: BEAM Entertainment
Genres: Action, Romance, Sci-Fi

OVA based on the Joker manga by artist Katsumi Michihara (道原かつみ) and writer Yuu Maki (麻城ゆう).

Joker is a genetically engineered shape-and-gender-shifter, who created as part of a Special Police Task Force and fights crime of all kinds, but he/she also fits in a little romance around the edges.

(Source: AniDB)