Polarium is a unique puzzle game for the Nintendo DS that is totally puzzle based. There are many modes, including a fast paced one, one where you can take your time, and even a custom puzzle mode. In the fast paced mode, blocks areput down on the bottom screen where you then have to rapidly trace certain blocks to get rid of them. In the puzzle mode, you take as much time as you want through 100 different puzzles, each puzzle gets harder and harder,and each time you beat ten, you get ten more. In the custom puzzle mode, you can make your own puzzles to put in the actual puzzle mode, you have many different options to choose from like size and difficulty.