Guyver

When high-school student, Sho, unwittingly activates a mysterious alien weapon, he is transformed into THE GUYVER, a powerful mechanized warrior possessing an incredible alien arsenal. He must now defend mankind against the Zoanoids - devastating bio-weapons created by an ancient alien race’s gruesome genetic experiments

Region 1 - North America

Guyver - The Bioboosted Armor: Complete Collection by FUNimation Entertainment, Ltd.
Guyver - The Bioboosted Armor: Complete Collection (Viridian Collection) by FUNimation Entertainment, Ltd.
Guyver The Complete Series by FUNimation Entertainment, Ltd.
Guyver Vol. #1 by Manga Entertainment
Guyver Vol. #2 by Manga Entertainment
Guyver: Bio-Booster Armor Collection by Manga Entertainment
Guyver: The Bioboosted Armor Vol. #1 by ADV Films
Guyver: The Bioboosted Armor Vol. #2 (also w/box) by ADV Films
Guyver: The Bioboosted Armor Vol. #3 by ADV Films
Guyver: The Bioboosted Armor Vol. #4 by ADV Films
Guyver: The Bioboosted Armor Vol. #5 by ADV Films
Guyver: The Bioboosted Armor Vol. #6 by ADV Films
Guyver: The Bioboosted Armor Vol. #7 by ADV Films

Region 2 - Japan/Europe

Guyver The Complete Series by Manga UK
Guyver: The Bioboosted Armor Complete Collection by ADV Films UK
Guyver: The Bioboosted Armor Vol. #1 by ADV Films UK
Guyver: The Bioboosted Armor Vol. #2 by ADV Films UK
Guyver: The Bioboosted Armor Vol. #5 by ADV Films UK
Guyver: The Bioboosted Armor Vol. #7 by ADV Films UK

Region 4 - Australia

Guyver: The Bioboosted Armor Vol. #5 by Madman Entertainment

Region A - N. America, S. America, East Asia (Blu-ray)

Guyver Complete Series by FUNimation Entertainment, Ltd.