Board Thread:Speculation, Theories, and Rumors/@comment-25400375-20150414212357/@comment-679780-20150416004452

Heres a small theory of mine.

In Sonic Adventure, after Sonic fetches Tails from Emerald Coast their meeting imples that they have not met in a long time. Sonic Generations, Tails is friends with a university professor, Professor Pickle.

My guess that the long time absence between Classic and Dreamcast era could be Tails went to Spagonia University despite his young age. Professor Pickle was one of his teachers.