The sound comes from The Mimic, a Roblox horror game series drawing on Japanese folklore and urban legends, where Biwaki is one of the monsters players encounter while exploring haunted locations. Her jumpscare became a shareable clip outside the game as players recorded close encounters and reused the scream in edits, much like the FNAF jumpscare scream spread from its own series. It remains popular because the hit is instantly recognisable to fans, works without any visual context, and can turn an ordinary reveal into a horror moment in seconds.