Searching for the missing Chaos Emeralds, Sonic is trapped on an ancient island teeming with unusual creatures. Battle hordes of powerful enemies as you explore a breathtaking world of action, adventure, and mystery. Accelerate to new heights and experience the thrill of high-speed, open-platform gameplay as you race across the five massive Starfall Islands. Dive into the adventure, harness the power of the Ancients, and fight to stop these new mysterious foes.