The game begins in 1990 when Tails and Sonic meet up in Pokémon Region Sinnoh,where there adventure begins. Sonic and Tails arrive at Sinnoh after a harsh battle with Dr.Eggman's new robot, the Portalrafter, where in the midst of the battle, the robot created a rupture in space time that created a portal that sucked everybody in the place in, including the robot (which is now malfunctioning and can't take them back),Eggman (who was seen flying off somewhere distant) and Sonic and Tails where they where they flew off, later on it is seen that Eggman has been working with Team Rocket creating robotic pokemons that are superior than the real ones, and the already robotic ones being 1000 times more meaner and nastier. Sonic then finds Tails who has teamed up with Pikachu and Mudkip along the w