Mario & Sonic At The Olympic Winter Games (KS) ROM Download can be obtained free for Nintendo DS on EmuGames.net only. Play Sonic emulator game in English for the USA region. Mario & Sonic At The Olympic Winter Games is a NDS ROM that you can download to your computer or play online within your browser. You can also download roms such as New Super Mario Bros. and Mario Kart 64 that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.