This is hacked.
Viewing post in Baldi's Fun New School Ultimate comments
ok if you play this game 24/7 you might get that amount of baldi bucks i lost it all but its ok even though once you hit the limit of 9999 baldi bucks you can't get anymore baldi bucks but you still get it but when you reload the game your baldi bucks will be reseted to 9999 baldi bucks so you can infinitly buy anything from matts shop i think and also the best way to farm Baldi bucks is using zolt beacuse it has the best abiltys of hacks not real hacks its just that lol