Bounty Dog [DVD] [1994]

Originally created as a radio performance, this sci-fi anime adventure chronicles the goings on of Bounty Dog Investigation Team agent Yoshioki, who has been sent to discover the source of the recent activity on the moon, which is later revealed to serve as an artificial observation satellite. It's not long until he realizes that he must destroy Sleeper, the evil entity responsible for Yoshioki's tragic past.