Haruo Nakajima
Godzilla's signature weapon is its "atomic heat beam" (also known as "atomic breath"), nuclear energy that it generates inside of its body, uses electromagnetic force to concentrate it into a laser-like high velocity projectile and unleashes it from its jaws in the form of a blue or red radioactive beam. Toho's special effects department has used various techniques to render the beam, from physical gas-powered flames to hand-drawn or computer-generated fire. Godzilla is shown to possess immense physical strength and muscularity. Haruo Nakajima, the actor who played Godzilla in the original films, was a black belt in judo and used his expertise to choreograph the battle sequences.