mario kart ds is so cool for the DS is a very, very good game. But the best feature is multiplayer. You can't fully enjoy the game until you've tried it. With players that don't own the game, Vs. racing stinks. With players that have it, the expanded course selection is better. You can't do the good course with one game pak. Now Ballon Battle and Shine Racers are ok either way, but they aren't the main features. But still very fun. Wi-fi Racing is incredible. Racing people from other countries is fun. Especially when you win. But if they use cheats like action replay, then it is just plain horrible because you don't stand a chance (usually). Overall, a great game in my opinion.