Balloon Boy

Balloon Boy, often abbreviated to "BB", is a character owned by the Fazbear Entertainment brand and used in merchandise at Freddy Fazbear's Pizza. A figurine of Balloon Boy resides in the Security Office.

Appearance
Judging by the figurine's appearance, Balloon Boy is a humanoid character who wears blue and red striped attire. They wear a propeller hat and t-shirt, as well as navy blue pants and large brown shoes. He has a large red nose, akin to that of a clown.

Trivia

 * Balloon Boy is an animatronic from the original Five Nights at Freddy's 2, where he acted as a balloon vendor for that game's establishment and a minor antagonist who would deactivate the player's flashlight once they enter the office. Ever since, they became a recurring animatronic in the series with multiple variations.
 * As confirmed in Phisnom's Q&A, Balloon Boy will not be an antagonist in Five Nights at Freddy's Plus. While considered, Balloon Boy proved to clash with the game's direction.