In the game, players use a stylus to draw lines on the DS's touch screen, flipping black and white tiles to clear puzzles.
In the standard Tetris-like challenge mode, players must make room for falling tiles by clearing rows as they pile up on the bottom screen.
Nintendo DS Download Play allows Nintendo DS owners who do not have a copy of Polarium to wirelessly download this demo version of the game to their system from a friend or kiosk.
[1] The game features almost four times as many puzzles as Polarium, as well as the removal of Challenge mode, and the addition of new tiles, among other gameplay tweaks.
[2] The game was released in North America sometime during November 2006, published by Atlus rather than Nintendo.