Godzilla is depicted as a sea monster awakened and empowered by nuclear radiation. Godzilla's signature weapon is its "atomic heat beam", nuclear energy that it generates inside of its body, uses electromagnetic force to concentrate it into a laser-like high-velocity projectile and unleashes from its jaws in the form of a beam. Godzilla is amphibious and is described by Dr. Yamane as a transitional form between a marine and a terrestrial reptile. Godzilla has great vitality: it is immune to conventional weaponry thanks to its rugged hide and regeneration, and it cannot be destroyed by anything less powerful. His electromagnetic pulse-producing organ generates an asymmetrical permeable shield making it impervious to all damage unless when the organ recycles