Five Nights at Freddy's launched in 2014 as a point and click horror game about haunted animatronic mascots that move when you are not looking. Their jerky head twitches and camera glitches became one of the series' signature scares, copied in sequels, fan games and remixes. Clips like the fnaf 2 scream and lines from William Afton helped the sounds spread on YouTube and TikTok, and short twitching bursts are now used far beyond the games as a universal cue for a creepy malfunction.