[img id='57788' txt='' align='left'> # _ Today is a great day for fans of the blue hedgehog: Sonic the Hedgehog 4: Episode I is now available on the Marketplace ( web ) at a cost of 1200 Microsoft Points. The game marks the return of classical mechanics in the series, combined with a high-definition graphics. If you want, instead, focus on a title less frenetic and more focused on puzzle-solving can spend only 400 MP and jump at Dead Space: Ignition ( web ), the prequel to Dead Space 2 is characterized by different end users and the possibility of unlock exclusive content that can be used later in the second chapter in the saga of horror EA.