Youjuu Toshi, Devilman: Tanjou-hen Recommendations
Both titles were released in 1987 with similar animation and a similar vibe. Both anime have the main protagonist battling against demonic monsters trying to destroy humanity. They both have shape shifting demonic monsters that can disguise themselves as humans. Both are action-packed anime with lots of blood, gore, and gratuitous nudity. If you like one, you will enjoy the other.