Out of all the nightmare animatronics (except for Nightmare), Nightmare Fredbear appears to be the least damaged. He is slightly bulkier than the other nightmare animatronics. He is a mottled golden color with various splotches of brown and has many tears and holes in his suit. He wears a pink/purple bowtie and small top hat with a black stripe.

Furthermore, he has two black buttons on his chest which is similar to BB's from Five Nights at Freddy's 2. He has a large head with puffy cheeks, exposed gums in dark color, and a wide mouth full of long, sharp teeth. His head, like all the other nightmare animatronics, also appears to be separated into two parts. His muzzle is squarish, similar to Freddy from the second game.

His small eyes are grey and metallic with bloody red irises, and has several long wires poking out from each of his eyes in the form of eyelashes. His claws are silver-colored and razor-sharp, keeping with the nightmare animatronic motif. The hands both have exactly the same design as Springtrap and the other nightmare animatronics. Furthermore, his hands are bigger with fingers (except for both thumbs) colored in brown.

As with all the other nightmare animatronics, his kneecaps as well as shoulder pads are missing, and has a large hole located from the lower part of his left thigh. Most of the fur on his ears is missing. His stomach is round with dark brown coloring and a large slit at the lower part armed with a set of razor-sharp fangs. He also has what appears to be a reddish tint at the roots of his teeth, possibly hinting that he is the culprit of The Bite of '87.

Nightmare Fredbear will appear in Night 5 (for the full night) and Night 6 (from 4 AM onward). When active, no other animatronics will attack which, to a degree, can simplify things.

Nightmare Fredbear will approach from either the Left Hall or Right Hall. When looking at him in the halls, flicking the Flashlight off and on will cause him to approach while closing the door will make him retreat back around the corner.

At random points throughout the game, the player will hear Nightmare Fredbear laugh loudly, which means that his head will appear either on the Bed (at which point the player must simply shine the Flashlight on him for a brief period of time) or in the Closet (at which point the player simply has to close the door for a brief period of time). 

 But be aware, if the player hears laughing and footsteps, then Nightmare Fredbear is not in the Closet or on the Bed.