Graphics: 4.5/5 They look very solid for a DS game, and certainly better than the N64 versions of the game. No drop in frame rate, and it overall looks very good.
Sound: 3.75/5 Grainy sounding Mario, Luigi, DK, Peach, Yoshi etc. = annoying. The game doesn't sound fantastic, it's just pretty average. Past games sounded better.
Control: 4/5 Obviously, Mario Party is known for its mini-games. On the DS, the microphone and touch screen are put into use, of course. Most games are exactly the same that involve the microphone, and some with the touch screen are the same too, just with different skins, but they are still enjoyable. The other minigames are played with the control pad.
Fun: 3.5/5 Mario Party DS is lacking a few things - Wi-Fi, more playable maps, and more characters, but it's a decent game. The minigames are quite fun, even though some are almost the same. Mario Party DS really doesn't feel like its own game, and just a minigame itself. I wouldn't recommend buying this game simply because it is lacking some things games on the N64 did have. Another problem I have with this game is its story mode. While it could be a nice addition, the story is lame and predictable, and if you fail in the story mode, you have to redo a whole 10 turn or more game. I would recommend this game if you are going on a road trip with (a) friend(s), because it's fun in groups, only playing a few games at a time, and can be played with one copy of the game.