When he transforms, he grows large swords from each of his arms and his face takes on a demonic appearance with dark skinless flesh and oversized jaw without lips. His chin becomes pointed and another sword grows from his forehead where his eyes would be, with the handle sticking out of the back of his head. Despite having his physical heart replaced with the Katana Devil, Katana Man considers himself to still have a human conscience and states that he doesn't sleep well on nights where he kills