Mario & Sonic on the Wii and DS is a collection of twenty-four events based on the Olympic Games. The first official video game of the 2008 Summer Olympic Games, it is licensed by the International Olympic Committee (IOC) through exclusive licensee International Sports Multimedia (ISM), and is the first official crossover game to feature characters from both the Mario and Sonic the Hedgehog series. It was published by Nintendo in Japan and by Sega in other regions, released on the Wii in November 2007 and the Nintendo DS handheld in January 2008.
Mario & Sonic at the Olympic Games is a crossoversports and party game developed by the Sega Sports R&D Department.
