Metal Bonnie has a similar appearance to the original Bonnie from FNaF 1, Withered Bonnie from FNaF 2, and Bonnie from Jolly 2. His suit is covered in soot marks apart from his bow tie, which is a clean and bright red, and he has glowing white eyes.
He can appear in the left or right window in the office, but is only visible when using the light to illuminate the window. If you spot him, immediately look away or open up the cameras. If you are not fast enough, he'll jumpscare you. Being jumpscared by Metal Bonnie does not result in a game over, however it will drain the gas supply needed to fend off Withered Jolly, Withered Maxie, Withered George, and Withered Tweetie.
- Despite Metal Bonnie's official gender being listed as male, he appears in the "Ladies Night" mode during Custom Night. This may be a reference to Bonnie being a gender neutral name.
|Metal Bonnie's jumpscare sound, this is shared with the rest of the metal animatronics in Jolly 3 Chapter 1.|