Mario & Sonic at the Olympic Games, released last year for Wii, has shipped to retail for Nintendo DS, SEGA of America announced. Mario & Sonic at the Olympic Games is a game which unites the two rivals under the same title for the first time in history. Featuring an all-star cast of characters from the amazing worlds of both Mario and Sonic, players will be able to compete as or against a range of familiar characters including Mario, Sonic, Luigi, Knuckles, Yoshi, Tails and more.