Apocalypse Bird is an Abnormality, which only appears when Punishing Bird, Judgement Bird, and Big Bird are merged together. The monster has a bandage-covered body, with the unwrapped head of Bird of Judgement at the top of it, and the mouth of Punishing Bird in the front of its abdomen. It has big talons covered in bandages coming from the top of the body, and big black wings covered with the yellow eyes of Big Bird coming from its back. It has no legs, and it has a big bright yellow eye.