I have this game, I must say it is very addictive.
They really improved the 150cc mode because I don't remember Mario Kart 64 being this hard, i love a challenge
I like how you can have 2 characters like Bowser Jr and paratrooper and have 2 special weapons, one being the 3 shells, which is awesome.
The tracks are awesome, the music and sound are awesome.
I give this game 5/5.
in responce to OCTuuk: (sorry i can't resist this)
this game has cars not karts? what is a kart basicly? it essentially is a car, so what are you complaining about?
The racing and the items are just as important as one another, if you're in 8th place you get much better items than someone in first place, so its not just "pure luck", the further you are in the pack the worse the items are, everyone has equal chance to win.
The fact that you are not good at this game does not mean it is a bad game it means you're a bad player, you shouldn't be playing on 150cc if you can't play that very well.
You can defend yourself, it just takes different methods, IE when a red shell is after you throw a green shell back the way and it will stop it.
The AI uses the items more in this game than mario kart 64, making it harder, so deal with it.
The blue spiked thing is from Mario Kart 64, and its supposed to go after number 1 and you couldn't avoid it in that game either.
Mario Kart DD is a mario kart game, it has mario in it, it has karts, it has red shells, green shells, mushroom boosts. IT IS MARIO KART!!!
This game is not supposed to be a racing sim is it? it is about fun/enjoyment and multiplayer and I feel it achieves this.