THIS EDITION INCLUDES Base game Explorer's Treasure Box, which contains useful items for your adventure: Amy's Memory Tokens, Knuckles' Memory Tokens, Tails' Memory Tokens, Portal Gears, Chaos Emerald Vault Keys, Additional Gloves & Shoes for Sonic Digital Art Book with a 25-track Digital Mini Soundtrack ABOUT THE GAME Worlds are colliding in Sonic the Hedgehog’s newest high-speed adventure! 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. Jump into adventure, wield the power of the Ancients, and fight to stop these new mysterious foes. Welcome to the evolution of Sonic games! Read more What are the system requirements? MINIMUM OSWindows 10 ProcessorIntel Core i5-3