The perfect 2-D mario game
I wont beat around the bush. This game is awesome ! The only thing bad about it is that it is too short. That might come from the fact that once you start playing, you wont be able to stop.
Without a doubt, New Super Mario Bros. is one of the best reasons to buy a Nintendo DS and this game will please Mario veterans and newcomers alike. I tested it with a lot of "non-gamers" and they all fell in love with it. Hardcore players will complain about the short lenght and rather low difficulty, but let those minor issues stop you from experiencing the best Mario game to come out since Super Mario Bros. 3.
You simply must buy this game, or a least find a friend who has a DS and NSMB, wait for him to go to the bathroom and steal it from him. You will be giving it back to him in under a week and will have a huge smile on your face.