Sonic starts a global race against time. At sunset, completely new worlds open up to you. With one of Dr. Eggman unleashes a devastating energy beam that splits the world into several continents. And Sonic also feels the effects - in a mysterious and diabolical way. With his usual super speed through spectacular levels in classic 2D and overwhelming 3D, it's once again up to Sonic to save the world - and himself! Everything you'd expect from a 'next generation' Sonic: super speed, incredible level design and breathtaking visuals. With the powerful new HEDGEHOG ENGINE, the speed and controlled control of a 2D side scroller are transferred to sensational 3D environments.