Get ready for challenging puzzles that require quick thinking and fast reflexes. In Polarium, you must draw lines to flip black and white tiles over in an effort to make patterns and puzzles disappear. The wireless capabilities of the DS let you send your custom-made puzzles to a friend, as well as challenge other players in multiplayer matches. Clear lines with question marks on them to get power-ups that make your lines clear faster, block out your foe's border, and/or reverse his or her tiles.