Worlds are colliding in Sonic the Hedgehog’s newest high-speed adventure. Uncover the mysteries of the remains of an ancient civilization plagued by robotic hordes. In search of the missing Chaos emeralds, Sonic becomes stranded 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-velocity, open-zone platforming freedom as you race across the five massive Starfall Islands.