Guyver: Out of Control

Bio Booster Armor Guyver
First volume of the Viz US release of Guyver
強殖装甲ガイバー (Kyōshoku Sōkō Gaibā)
Genre	Action, Adventure, Science fiction, Superhero, Mecha
Manga
Written by	Yoshiki Takaya
Published by	Tokuma Shoten (until 1997) Kadokawa Shoten (since 1999)
Demographic	Shōnen, Seinen
Magazine	Shōnen Captain (1985–1997) Monthly Ace Next (1999–2002) Shōnen Ace (2002–2009) Young Ace (2009–present)
Original run	February 18, 1985 – present
Volumes	32 (List of volumes)
Original video animation
Guyver: Out of Control
Directed by	Hiroshi Watanabe
Produced by	Nagateru Kato Takao Asaga
Written by	Toyoo Ashida
Music by	Tadashi Namba
Studio	Animate Film
Licensed by	Dark Image Entertainment
Released	December 13, 1986
Runtime	55 minutes

Bio-Booster Armor Guyver (Viz Media) or Guyver (Chuang Yi Publishing) (Japanese: 強殖装甲ガイバー, Hepburn: Kyōshoku Sōkō Gaibā^?) is a manga series written and illustrated by Yoshiki Takaya. The Guyver itself is a symbiotic techno-organic (or biomechanical) device that enhances the capabilities of its host.

The manga was originally serialized in Tokuma Shoten's Monthly Shōnen Captain, the first appearance being in the February 18 magazine beginning in 1985. When Shōnen Captain was discontinued in 1997, the manga was picked up by Kadokawa Shoten who subsequently re-released all of the previous tankōbon originally published by Tokuma. The manga is currently serialized in Kadokawa's Young Ace magazine. It has been licensed by Viz Media, Star Comics and Chuang Yi Publishing.

Guyver has been adapted into a single OVA titled Guyver: Out of Control (1986, based loosely on the first volume), a 12-episode anime OVA series (1989 to 1992, based on the first four volumes), two live action movies (1991's The Guyver and 1994's Guyver 2: Dark Hero) as well as a 26-episode anime series (2005 to 2006, based on the first ten volumes).