Board Thread:Speculation, Theories, and Rumors/@comment-27182352-20161225155638/@comment-679780-20161228141445

In Sonic Adventure, Tails realised it was time to stop being a sidekick and be more independant as a hero as he saved Station Square from Dr. Eggmans terrorist attack.

In Sonic Lost World, Tails hits puberty while Dr. Eggman is buddy-buddy with Sonic.