Mario & Sonic at the Olympic Games is an announced sports game by Sega and Nintendo, and the first official game featuring both Mario and Sonic the Hedgehog, Nintendo and Sega's former rival mascots, along with other characters from their respective series. It is set for release on both the Wii and Nintendo DS, and is officially licensed by the International Olympic Committee through exclusive licensee International Sports Multimedia. It will be the first official game of the 2008 Summer Olympic Games to be released, with a more realistic sports game to be later released by Sega in 2008.
According to IGN, Mario creator Shigeru Miyamoto is supervising the project. The game or one of its two versions may be co-developed by TOSE.
