Play as Sonic, Tails, Knuckles, and Amy Rose and harness all-new Emerald powers to move and attack in dynamic new ways. Navigate gorgeous, never-before-seen environments solo or with up to 3 other players and stop Dr. Eggman, Fang, and a mysterious new adversary from converting the islands' giant animals into Badniks before it's too late!
- Choose from Sonic, Tails, Knuckles, and Amy Rose and take advantage of their unique abilities to blaze a path across the Northstar Islands as they race to defeat Dr. Eggman, who has teamed up with an old nemesis, Fang.