It was Green Hill, the quietest place on earth, until you heard a noise from a cave and you approached seeing how Sonic and his friends were fighting against Eggman who has a very powerful Rubi Crystal in his possession, Sonic won but Eggman I use that Crystal to go to another timeline, you go in to help but Sonic tries to block the impact, in the end you two appear in Neo Yoke City, a place where Eggman did manage to make Eggmanland, (It's another timeline), Sonic Look around *
Sonic: Where are we? Is this New York?