Nintendo 3DS - Two of the biggest legends in gaming join forces to show what they can do at the biggest competition in the world: the Olympics. Join Mario and Sonic as the heroes head to London for the 2012 Summer Olympics. Join your favorite characters from the Mario and Sonic worlds as you compete in an Olympic-sized variety of challenges, with over 50 events to choose from. Compete in a single-player story that puts you up against a rival team of Dr. Eggman and Bowser or challenge your friends in multiplayer. You'll tap, tilt, blow, and shout your way to the gold medal in action that uses all the features of the 3DS control system.