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DVD cover of the US release of The Guyver - Bio-Booster Armor.

The Guyver - Bio-Booster Armor (強殖装甲ガイバー Kyōshoku Sōkō Gaibā) is a 12 part anime OVA series that's loosely based on Yoshiki Takaya's manga, Bio Booster Armor Guyver. It was released in Japan from 1989 to 1992.


Divided into two series, this OVA series tells a condensed version of the first five volumes.

Differences Between Manga and OVA Film

Though the series follows the manga much more closely than the original OVA, Guyver: Out of Control, there are still some significant differences between the manga and this OVA series. The main characters were included and the general feeling of manga plot are still there. The series of events that happen are where the major differences occur, as well as character appearances. An example was the appearance of Vamore; in the OVA he appeared immediately after Guyver I had defeated Gregole, in contrast to the manga were he appeared during the first kidnapping of Tetsuro. The Hyper Zoanoid Team 5 were also introduced much earlier than in the manga. In fact, an entire sequence of the team attacking Sho's school was added in as well as a battle between the two Guyvers and the team in the Chronos headquarters.

VHS cover of Guyver - Volume 1.

US Release

The OVA series was first released in the United States by U.S. Renditions in 1992. L.A. Hero, which released the first OVA, Guyver: Out of Control, provided the translation. It was released on 6 VHS tapes dubbed in English. All tapes had two episodes per tape with the first part of the series on the first three tapes and the second part on the last three tapes.

After U.S. Renditions rights expired, the series was later picked up by Manga Entertainment and released one episode per VHS. They later condensed the series onto two DVDs with each series on a separate DVD. The DVDs featured both English and Japanese audio tracks.

Although much of the original audio tracks for the English dubbing were kept from the U.S. Rendition version, there were some minor edits to the videos. The opening intro was slightly edited and gray boxes with English credits were placed over the original credits that were in Japanese, though unedited introductions were included in the special features. Some of the voices were re-dubbed. The final episode was also edited, mainly the nudity was removed. However, an unedited version of this episode was included in the special features, with Japanese audio only (the episode was available uncut with English audio for the US Renditions releases previously).

Production Info

  • Directed by: Koichi Ishiguro
  • Studio: Bandai
  • Release Date(s): 1989-1992
  • Runtime: 30 minutes each
  • Episodes: 12


Main article: The Guyver - Bio-Booster Armor Episodes


Voice Actors (Japanese)

Voice Actors (English)

Theme songs

  • Opening Theme - "Bio Booster Armor Guyver" - Shinichi Ishihara (Episodes 1-12)
  • Ending Theme 1 - "Guidepost -Alien's Messiah" (道標 -異形の天使(メサイヤ)-) - Shinichi Ishihara (Episodes 1-6)
  • Ending Theme 2 - "Guyver!! Another Me" (GUYVER!!~もう一人の俺~) - Katsumi Yamaura (Episodes 07-12)


1st Japanese Opening   2nd Japanese Opening
Guyver,_ORIGINAL_Opening   Guyver_Second_Opening
1st English Opening   2nd English Opening
File:Guyver English Opening 1   Guyver_English_Opening_2