Rez-Boa-Dog is an A-T team led by Inuyama. They are forced into battle with Ikki due to Simca stealing their emblem, which Ikki, believing the team to be attacking her, abets her in. Inuyama is a close friend of Tokudawara Gonzo, and he wears a helmet shaped like the head of a doberman. He slams his opponents with the tip of his helmet (or sometimes just with his impossibly hard hair), doing surprisingly major damage. His team is defeated and disbanded, and he continues to support Ikki afterward. Currently, Rez-Boa-Dog is assisting Ikki with the fight on the Aircraft Carrier.
They're named after the movie "Reservoir Dogs" (1992), combined with "Rez" which is a slang term for "lesbian".