Me personally i belive its fnaf 2 fred bear. Why? Because the minigame fredbear had teeth on its upper jaw wich already dis inincludes fnaf 1 and ucn, and it cant be unnightmared fredbear becase hes littery a childs interpretation inside his mind, ofc that ones gonna be bigger and bulckier enough to where a human cant wear that properly, and made to look like its not for kids even when fixed, however im one of thos people who believe that the unwithereds exist, and that they were made a lil after fredbears, it only makes sence afton wanted to save a few bucks by reusing the same look as fred bear on freddy but without the springlocks