- 8 worlds
- expect level maps with branching paths, much like NSMB on DS
- mushroom huts for power-ups
- mid-map fortress
- world-ending castle
- split-second pause for all characters when one dies has now been removed
- plot: Mario is saving Peach, who has been kidnapped by Bowser
- eat hammer bros. hammers with Yoshi
- rafts can sink if they have too many people on it, which is indicated by a number
- roller coaster level with a coaster made of bones
- start with 5 lives
- level will end if all 4 players die at the same time, even if other players have lives left
- tossing fire or ice attacks at your co-op friends doesn't hurt them
- tossing a barrel at co-op friends hurts them
- Bowser, Bowser Jr. and the Koopa Kids are all enemies
- tons of hidden paths and coins
- there are a few special Toad-rescuing missions to save a toad. These missions will take place in already-cleared levels
- competitive multiplayer modes: Free For All and Coin Battle
- Free For All: see who can get the high score
- Coin Battle: collect the most coins
- multiplayer levels include stages from the co-op mode, as well as new levels
- one Coin Battle stage is a ghost house
- boos return
- another Coin Battle stage is based on 1-2 of Super Mario Bros.
source: GoNintendo

Yes, yes, yes!

V - I don't really care about wifi because I learned that I prefered playing alone, apparently.

i cantwai ti want it noe :3
wait does it have wifi?

Nope It doesn't.

Proof?

If this is all true then.......................ZOMG DIS GEAM WIL B AWESOME!!!!!!!!!!!!!!!!!!!!!! :D

plot: Mario is saving Peach, who has been kidnapped by Bowser

Is it ever any different?

Awesome! I can't wait!

aw it wouldve been aweosme if it did
>.<

I can't wait either... it's gonna be super sweet.