C00lkidd is one of the killers in the Roblox horror game Forsaken, a fan-made asymmetrical survival game built around classic Roblox characters and creepypasta-style villains. His kill animations and chase music became popular in short-form edits, and players began clipping the survivor scream that plays when he finishes a target. The clip spread through Forsaken gameplay videos, TikTok edits and meme compilations, where its short length and instantly recognisable panic made it easy to reuse outside the game itself.