Destroyah, spelled Destoroyah by Toho, first appeared in Godzilla vs. Destoroyah in 1995, the closing film of the Heisei Godzilla series. The monster evolved from ancient crustaceans mutated by the Oxygen Destroyer, the weapon that killed the original Godzilla in 1954, making it a symbolic final opponent. Clips of its roar later circulated through kaiju forums, fan trailers and soundboards, where the short screech became shorthand for an unstoppable monster threat. It remains popular because few Godzilla villains sound this strained and feral.