Board Thread:Questions and Answers/@comment-120883-20141128204017/@comment-28986801-20170415005307

SU#89 states that the events of Sonic Advance 3 took place and it shows Eggman using the Genesis Wave to split the planet into pocket dimensions, one that Walter got caught up in. Remember in the beginning cutscene where the world fades to white? I believe that was the Genesis Wave and it led to the events of "Sonic: Genesis" (not to be confused with "Genesis of a Hero"). Therefore, "Genesis" was an alternate/reset world just like in the Preboot, and that "Genesis of a Hero Part 1" takes place in the past of the Reboot, ie. the events of Sonic 1!

But hey, that's just a theory! A Sonic theory! Thanks for reading!