Hallucinations are strange events that happens in Five Nights At Freddy's 1 , 2 , 3 and 4.
If the player spots an alternate Freddy Fazbear poster in CAM 2B they will ultimately summon Golden Freddy into the Office. Golden Freddy is a golden version of Freddy Fazbear which will sit in the Office in front of the player. If the player stares at the hallucination for too long they will trigger Golden Freddy's unique kill screen which will crash the game. Alternately, if the player draws up the monitor quickly, Golden Freddy will disappear.