Polarium is a simple, stylish puzzle game designed to be played entirely with the Nintendo DS touch screen and a stylus. Use the stylus to draw a stroke, flipping black and white tiles to change and match their color. Three game modes and scores of puzzles will put your puzzle-solving abilities and stylus skills to the test and you can challenge a friend to a duel over a wireless connection.Nintendo is thankfully bringing the game west, changing the name from the uninspiring "One-Line Puzzle" Japanese title. Anyone wanting an addictive, simple game to occupy their DS time wouldn't go far wrong to give this a look.