Those Nights at Rachels 2 is a canceled sequel to TNAR1. Not much is known about the game. There a theory is the game takes place in a home. -possibly the TNAR1 protagonists- The characters appear to be slightly damaged. If the game takes place in a home then that means the protagonist might have a nightmare about the characters from Rachels, if that is so then the protagonist is the same character from TNAR1 because he was the nightguard and maybe his nightmares followed him home.
Those Nights at Rachel's 2 Rebooted is April Fools joke.