Balloon Boy is a human-like animatronic with a round body, peach-colored skin, large blue eyes, an orange triangular nose, red-brown hair, and a toothy grin. Like the other new animatronics, he has blushed cheeks, which are colored rosy red. He wears a red and blue vertically striped shirt with two black buttons down the middle. The propeller cap he wears also bears the same pattern. He wears blue pants and simple, brown shoes. His arms are stubby and thin with fingerless, round hands. In his right hand, he holds a large, red and yellow striped balloon, and in his left hand, he holds a sign that reads "Balloons!".
In the game
In Fernanfloo's game, he was waiting for Fernan to show up, when a drone grabed his hat and put it away. BB went to fetch it when the wall explodes and making the pieces burrying him.
Fernan had to go to a empty room, where there was a small hole, where he could see BB, he put the bomb on his left side, where it would explode. After facing BB, he let the drone come to the room and take BB's hat with it's mechanical hand and put it on the floor on right side, and then the drone went back through the doors it came from. BB went for his hat, and in the same moment when he wanted to pick it up, the bom, from the other side, explodes, making BB burry under a pile.
- In Fernanfloo's game, he was seen as in the video game of FnaF. Except that in this game, he didn't had a balloon or a sign in his hands.
- When the drone grabed his hat, his blue pimples went narrow, and when he went for his hat they widen again.
- In the room there was an Ironman suit and a battery.