This move exists primarily within the Sonic X continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
The Big Belly Ballistic Bounce is a move that appears in the Sonic X comic series. It is a move utilized by Dr. Eggman when he took the guise of "El Gran Gordo".
The Big Belly Ballistic Bounce is utilized via taking advantage of the charges supplied to Dr. Eggman via his mini-robots that resemble sequins, which grant him much greater mobility than in his normal state. With this, he launches himself forward belly first as he smashes into his target.
When Bokkun attacked the wrestling arena with the Funsizor, Dr. Eggman used this technique to save the President from the robots.