Guy: Double Target

A simple salvage operation turn into a nightmare journey to the Prison Planet Geo; where evil warden Helga has built an illegal empire based on slavery and exploitation. Dr. Vail, also a resident of Planet Geo, has discovered a new process to turn the inmates in vicious monsters. The appetites of the monsters and Helga's own insanity transform Geo in a literal hell but Guy and Reina know just how to handle it... (animenewsnetwork.com)