Series: Bio Booster Armor Guyver
Bio-Booster Armor Guyver (強殖装甲ガイバー ) 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.
Guyver has been adapted into a single OVA titled Guyver: Out of Control (1986, based loosely on the first four chapters), a 12-episode anime OVA series (1989 to 1992, based roughly on the first four volumes), two live action movies (1991’s The Guyver and 1994’s Guyver 2: Dark Hero) as well as a 2005 26-episode anime series based on the first 60 chapters (volumes 1-10).