|Power Source||Atomic Energy|
Doublas M2 was a Mechanical Beast that was originally destroyed by Koji Kabuto before being rebuilt into Garadoubla MK01.
Doublas is similar to his original appearance, having a humanoid body with clawed fingers and two long neck each having a triangular shaped head. It had black markings around the eyes and horns atop its head.
It was among the first Mechanical Beasts discovered by Dr. Hell when investigating Bardos. The beast had later been destroyed in a battle against the Mazinger Z, presumably alongside Garada K7. Afterwards Doublas and Garada's wreakage is later fused together to build Garadoubla MK01.