The screech comes from Five Nights at Treasure Island: The Revenge, a fan-made horror game in the wider Five Nights at Freddy's community, where it is used as a harsh scare sound in the style of a classic FNAF jumpscare scream. Like many sounds from fan horror games, it spread through soundboard archives and collections rather than through official releases, with players and editors reusing it long after first hearing it in gameplay. Its short length and sudden, abrasive tone keep it useful for jumpscare edits, horror compilations and reaction clips that need an instant shock without dialogue or music.