Circus Baby/Canon

Circus Baby is the main villain of Sister Location, she's possessed by William Afton's daughter, Elizabeth.

Sister Location
WIP

Freddy Fazbear's Pizzeria Simulator
Sometime between the events of Sister Location and this game, Baby got separated from Ennard, forcing her to take on a new form.

Ultimate Custom Night
Circus Baby's original self returns for Ultimate Custom Night, this is the first game where she can jumpscare the player, though she shares her mechanic with Nightmare Bonnie and Nightmare Mangle. She will first appear on the right hall and to avoid being killed by her, the player must buy her plush toy from the Prize Counter. She can't be stopped by the office door.

The price of her plush toy depends on the AI level Baby is set to. Between levels 1-9 it will be 10, between levels 10-19 it will be 15, and at level 20 it will be 20.

Trivia

 * According to Scott Cawthon, Baby was one of the hardest animatronics to model along with Ballora, due to their complex endoskeletons.