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 hypersonic 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.