Cloyster first appeared in Pokémon Red and Green in 1996 as the evolved form of Shellder, a Water and Ice type known for its hard spiked shell. Its cry, generated for the handheld games, became familiar through repeated battles, trades and later appearances in the anime and newer titles. Fans recorded and shared that cry online as games nostalgia spread to meme edits and soundboards. The short length and unmistakable tone keep it useful today, long after the original hardware, as a quick reference any Pokémon player recognises.