Balloon Boy

Balloon Boy, shortened to simply BB, is a major antagonist of the series. He debuted in Five Nights at Freddy's 2.

Physical Appearance
BB is a small balloon-vending animatronic, with pale skin, dark blue pants, orange nose, cheeks and eyelids, a red and blue striped propeller hat with an orange propeler at the top, he wears a red and blue stripped shirt with two white buttons on him. He wears brown shoes, and he sports eyes with blue irises. He holds a yellow balloon, with a red stripe on it and holding a white sign saying "BALLOONS!!"

Supreme Custom Night
His mechanic was the same as it was in Ultimate Custom Night.

Supreme Custom Night: Revival
To be revealed.