Godzilla (1954)

Godzilla's powers and abilities

Atomic Breath - Godzilla's iconic breath weapon works a little differently than the ones of his later generation counterparts, acting as a smoke-like radioactive flame instead of the normal laser-like beam. The heat from the breath is enough to melt most metals and engulf entire city blocks in flame.

Durability - All conventional weapons were ineffective against Godzilla and even exposure to a hydrogen bomb was not enough to fell the beast.

Godzilla's weaknesses

The Oxygen Destroyer - The only weapon to actually kill Godzilla was Dr. Serizawa's oxygen destroyer. In most continuities, the weapon dissolved Godzilla down to nothing, although in the Millennium era it left behind his skeleton in Against Mechagodzilla and simply killed him while leaving his body intact in GMK.