Dee Dee first appeared in FNaF World before returning in Ultimate Custom Night in 2018, the Five Nights at Freddy's game created by Scott Cawthon. In UCN she can appear randomly between nights and add a secret or standard animatronic at increased difficulty, a mechanic players both love and dread. Clips of her song spread through FNAF gameplay videos, streams and edits alongside the FNAF Jumpscare Scream, becoming shorthand online for a run being sabotaged by pure random chance.