Cubone first appeared in Pokemon Red and Green in Japan in 1996, created by Game Freak as one of the original 151 Pokemon. Pokedex entries describe it as the Lonely Pokemon that wears the skull of its deceased mother and cries mournfully, especially on nights with a full moon. Its short in-game cry was carried into the anime and later games, becoming instantly recognisable to fans. Online, that cry spread beyond battles into edits and reaction posts, where its sad tone shorthand for loneliness, grief and sympathetic humour.