Simple, easy to play fun!
The controls are simple, and the game is easy to get into and can prove challenging at times. You have to group colours together to gain points, and occasionally special pieces will appear on the board, such as explosive pieces that cause you to lose unless you can stop them.
There are also several game modes, including Time Trial and Survival, so you won't get tired of it that easily. It's a great game to show of the 360's Live Arcade before you decide to make purchases of your own.