This is a set of two sports games featuring Nintendo's popular characters Mario and Sonic competing in Olympic events, offering a party-game experience. "Mario & Sonic at the Olympic Games" features summer sports (track and field, swimming, gymnastics, etc.), while "Mario & Sonic at the Olympic Winter Games" features winter sports (skiing, skating, curling, etc.). Both games are enjoyable for families and friends to play together. There may be some scratches and wear on the cases and discs due to use, but they have been tested and are in working order. Please only purchase if you understand that this is a used item. Thank you for looking.