Ballora's music box theme comes from Five Nights at Freddy's: Sister Location, the 2016 FNAF game featuring Ballora as one of its animatronic characters. The tune became memorable because players hear it during tense moments tied to her presence, making it instantly recognizable in the fandom. It spread through gameplay videos, lore edits and horror compilations, and it still appears in fan content whenever creators want a subtle FNAF mood instead of an immediate jumpscare like the FNAF Jumpscare Scream.