Where do I need to enter this code and are there any requirements?
Viewing post in 🔞Five Nights at FuzzBoob's: Definitive Edition comments
To be clear, you enter 1987 in night 7 by setting the difficulty of each character accordingly. (Freddy at difficulty 1, Bonny at 9, Chica at 8 and Foxy at 7). You unlock night 7 by beating night 6.
The only reason I tried 1987 is because it was an easter egg in the original game.
==
In night 3 or 4, they tell you a bunch of parody dates. The sounding of 1983 (?) is a third code that gives you plushies. I don't remember the year of the event, but it's the sounding one.