I was torn 3 ways with this one. Jade Empire, RE4, and Mario Kart DS. I went with Mario Kart simply because it pretty much cemented the DS. Yes, there were plenty of good games coming out and plenty on the way. But from the beginning, they have touted the multiplayer aspect. Around me, there is not one person anymore who I know of with a DS so Download Play is not an option. Jade Empire is an amazing epic story with absolutely beautiful graphics and while graphics don't make the game, they certainly do help move the story along. RE4 is beautiful and the new gameplay mechanics are incredible. But the doors that Mario Kart has opened and the simply fun gameplay over multiplayer (as limited as the interface is) is still fun. While there are many options I wish were included, such as mic support online, I think that it is a stepping stone for the format.