After years of going against each other, Mario and Sonic the Hedgehog happily co-exist in a video game. Mario & Sonic At the Olympic Games pits Nintendo's hero and his friends (and foes) against characters from the Sonic universe. It's essentially an Olympic competition not unlike Konami's Track and Field games, with over twenty events. It's enjoyable when everything works, especially against friends. Unfortunately, the clunky interface keeps it from achieving the gold.