Legend of Zelda: Phantom Hourglass
Known facts about Multiplayer Mode

Phantom Hourglass will feature a multiplayer game that can be played by two people. One player controls Link while the other controls three Chasers. The game lasts for three rounds, with each player getting a turn as Link and the Stalker each round. A turn ends when Link has been caught by the Chaser, or 120 seconds has passed. Winner is whoever has most points at the end of the game.

Link
The player controlling Link has to search the level maze for Force Gems of varying size (either small, medium, or large gems) that give different points based on their size. Also, depending on how large the gems are, they will slow Link down as he tries to return to "safe spots" where he can deposit the gems and collect the points.

Chasers
The Chaser-controlling player has a stock of three Chasers that are used simultaneously, by plotting the three brutes' paths in the level's map and then watching tos ee if they stumble upon Link. The Chasers move slower than Link, but have the advantage of a special "Link Revealing" button that can be used three times a turn as tell the Chaser player where Link is for a brief moment.