The sound comes from Fredbear and Friends: Out of the Machine, a fan-made Five Nights at Freddy's project centred on Fredbear, the older animatronic bear from the main series lore. Its short scare follows the same pattern as the classic FNAF Jumpscare Scream, relying on a loud, distorted shriek timed to an animatronic lunging at the player. Clips from fan games like this circulate on soundboards because they are easy to lift, loop into edits and recognise instantly, even for viewers who have never played this particular title.