- local, online and download functionality 
- up to four players
- download functionality removes some features
- details pertain to "Scarescraper" cooperative Hunter Mode 
- play as Luigis dressed in different colored outfits
- navigate floors and rooms of a haunted tower packed with ghosts of all varieties
- this includes bosses
- determine the number of floors 
- option for an infinite number as well
- three difficulty levels
- acquire upgrades for vacuums, both through a cumulative effort to acquire treasure as well as randomly assigned bonuses
- collect red coins once all the ghosts have been defeated to gain these bonuses
- every floor and every boss comes with a time limit
- If it expires, you all lose
- floor layouts and enemy layouts (and types) are completely random
- keep track of fellow players through a lower-screen map
- revive fallen friends by finding them, then use a quick press of a button 
- hearts are available throughout 
- individuals will be judged based on their performance through statistics and more personalized awards
- example: fail to capture ghosts and you'll be given the 'Mostly Harmless' award

http://gonintendo.com/?mode=viewstory&id=194801

Multiplayer Trailer -

http://www.youtube.com/watch?v=CgBmp44ld_o

What do you guys think? Is this a nice addition to the game?

It sounds quite fun to me!

Yeah!

Edit: But they should have different models for the players. 4 Luigis, how does that fit into the storyline?

Ugh...it looks like it's going to be one of those things that most people try once and then never go online with again. I kind of wish they'd spent all of this extra development time on making a lengthier single-player with plans for DLC, and not what looks to be a tacked-on multiplayer with different-colored Luigis.

Well it's a multiplayer mode, so it is not related to the story if my assumption is correct.

Nothing special but looks cool, im still waiting for a Mario fps U_U

Looks fun. Though multiplayer on non-MMO games usually gets quite boring fast to me.

yeah im gonna be all over this game heres my friend code in advance for anyone who wants to catch some ghosts 0387-9541-3028