One of the best DS games out there.
Gameplay:10/10-The "game" last 7 days and every day a mission with a time limit appears on Neku and his current partner's phone. If the mission isn't complete, Neku, his partner, and the other players obviously lose the game and are erased from existence. You run around the Shibuya district in Tokyo completing those missions and fight Noise(monsters that are trying to erase you).
In battle, you pick out pins that give you powers and beat the living crap out of those monsters. Your status can be raised(or lowered) by shopping for clothes and food.
Graphics:10/10- I don't see anything wrong.
Sound:9/10-The music doesn't get out your head because its so catchy.
Overall:9/10-This is an almost perfect game. I strongly reccommend this game to everyone.