Shadow Tweetie has the same appearance to her older version. However, she is black, grey, white (violet in the Extras and during her jumpscare) and phantom animatronic-looking.
Shadow Tweetie becomes active on the second night. She will begin to assemble and build herself in the Office Base the longer you stare at the animatronics in the camera. If she fully assembles and finishes building up, she will jumpscare you and cause a ventilation error.
- It's unknown if she's a hallucination and looks like a phantom animatronic as she is a burnt version of Withered Tweetie. She would be called Phantom Tweetie previously.
- It is unknown why her color changes when she jumpscares you or in the extras menu.