|This character exists primarily within the Adventures of Sonic the Hedgehog continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Big Daddy was captured by Robotnik and forced to do what he said via a control device located on his head. Thanks to Sonic's help, he was freed. They stopped Robotnik's plans and reunited Big Daddy and Boom-Boom.