Best multi-player on the DS.....
Sound- 9/10 : Unbelievably great music,You'll have heard most of it if you've played Double Dash or Mario Kart 64 but there's still a few new tunes.
Story- ?/10 : There is no real story to this game.
Gameplay- 10/10 : There are 8 grand prix's in the game, and you'll play through each of them to unlock 12 different racers, a bunch of karts, ( 3 for each racer which comes out to 36 karts ) and 32 race tracks. ( 16 all new ones and 16 old ones from the Game Cube, N64, GBA and the SNES! ) There's also mission mode... but its pointless. You can try to set new records in time trial mode and send them to your friends to race against. But the best thing about this game is its multi-player, you can race against up to 8 players on multi-card or single card! You can play either shine runners, balloon battle, free race or team race. As well as up to 4 players on Wi-Fi.
Graphics - 9/10 :Graphics are amazing, best I've seen on the DS so far!
Overall- 9/10: I would recommend this game to both hardcore and casual gamers. With its good music, great graphic and crazy 8 player multi-card it's a must have for any DS owner.