But how could you do this using Scratch? I also use Scratch and I think it is almost impossible to make such a game.
Think they used alot of Gif animations to make it look as close as possible.
It's possible! I used Gifs and Animations from the Five Nights at Freddy's Fandom Page.
Remix the game here!
https://scratch.mit.edu/projects/640269980/
I am going to add the anti cheat and the other cheats from the original game into the remix. (if you close the door and no one is there it makes the animatronics move closer to your door)