The objective is to change the coloured squares in the 6 x 6 board. Roll 4 or more marbles of the same colour next to each other to remove them. The squares under the disappearing marbles will change colour. A board is solved when all its squares become grey, then you can move on to the next board. The game contains 30 levels.
The game optimised for PlayBook, but it runs smoothly on Android and PC. From your PC click here to play, download to your Android phone from the Android Market, and for your PlayBook go to the BlackBerry App World.