Dark Moon won't just support local play, but online and download functionality as well, for up to four players, with the download functionality removing some features. Whether your friends are near, far or don't even own a copy of the game, you'll be able to join them for some ghost busting fun.
Hunter Mode contains a considerable amount of options and variables. Players can determine the number of floors they must conquer, including an option for their climb to never end. There are also three difficulty levels, the middle of which is certainly challenging enough. And, if that wasn't enough, players will be able to acquire upgrades for their vacuums, both through a cumulative effort to acquire treasure as well as randomly assigned bonuses at the end of a level - assuming players can earn them by quickly acquiring several red coins once all the ghosts have been defeated.
Key to all of this are two ideas - every floor and every boss comes with a time limit. If it expires, you all lose. Efficiently disposing of your enemies and properly exploring your environment is absolutely essential. But that leads to the next important notion - the floor layouts and enemy layouts (and types) are completely random. In essence, no experience will ever be quite the same.
There's no doubt more to Dark Moon's "Scarescraper" modes. Considering how entertaining 'Hunter Mode' turned out to be, it'd hardly surprise us if Luigi's Mansion's multiplayer becomes just as noteworthy as its main 'Quest Mode.'