Nightmare Chica

Were you perhaps looking for her Halloween counterpart?

Nightmare Chica is an antagonist in Five Nights at Freddy's 4 and a returning character for the Ultimate Custom Night.

Appearance
Nightmare Chica is dark yellow in color with a smudgy orange texture on her beak, which is larger and wider than her original counterpart. She also has two nostrils. Her eyes have a mix of white (left) and red (right), and her multiple teeth are sharp with green running down from the top.

Her bib is torn as well as the rest of her body. You can see her endoskeleton through various tears and holes in her costume. She also has small wires jutting out in various places.

Ultimate Custom Night
Nightmare Chica does not appear on the normal character roster, and instead can randomly be spawned by Dee Dee along with five other animatronics.

When she is activated, Nightmare Chica's jaws will slowly slide in from the top and bottom of the screen. Using the Power A/C will push back the jaws; otherwise, the mouth will close and Nightmare Chica will jump scare you.

FNaF 4
Nightmare Chica's role parallels that of Nightmare Bonnie, coming from the East Hall of the house.

Unlike Bonnie, however, when the child's back is turned, she sends another animatronic, Nightmare Cupcake, to do her dirty work. The cause is currently unknown, but it appears the Cupcake may be sentient.

She is the slower out of her and Bonnie, and tends to wander into the kitchen, banging around dishes for unknown reasons. The child has to hold the right door shut to prevent her from getting in.

If the child flashes the light at her when she is standing right outside the door, she will attack him, and if he turns his back on the door to look at the bed, Chica will have the Nightmare Cupcake enter the room and attack.

The only way to tell she is at the door is to listen for her breathing. Holding the door will cause her to walk away, being unable to enter.

Personality
Nightmare Chica is an insane, twisted and sadistic nightmarish form with the cruel goal to kill the child within his dreams. She is very cunning and often rely on her cupcake, which is far more discreet than rushing on the door.