The Guyver: Bio-Booster Armor is a oVA anime that premiered in fall 1989, produced by Animate Film.

About the production: the story comes from a manga, there are 6 episodes of about 29 minutes and its current status is "finished".

Its main genres are action, horror and sci-fi, with themes such as Super Power, Gore, Male Protagonist and Cyberpunk.

On AniList, The Guyver: Bio-Booster Armor has an average score of 67%, a good score, and appears on 4,328 users' lists.

The franchise continues in or follows from: Kyoushoku Soukou Guyver ACT II.

Shou and his friend, Tetsurou, stumble upon a strange orb-like mechanism, the Guyver Unit, in the woods. It physically bonds with Shou and turns him into the alien soldier, Guyver. His mission is to protect the Guyver Unit from the Japanese corporation known as Chronos. They are after it and two other units just like it. To retrieve the object, they send out vicious monsters known as Zoanoids. So no one is safe in Shou's life; not even himself.

Official synopsis from AniList.