Detonator Orgun
English name: Detonator Orgun
Genres: Action, Sci-Fi
Type: OVA, Episodes: 3
Aired: Aug 25, 1991 to Apr 25, 1992
Studio: AIC, Artmic
Source: Original
Rating: R+ - Mild Nudity
Synopsis:
Fleeing from his own race, Orgun—an alien being with superhuman abilities and unearthly weapons—travels to Earth to find an answer to his origin. There, he bonds with a young man named Tomoru to defend Earth against the Evoluders, who seek nothing but destruction of other civilizations.

(Source: ANN)