is played on a board that fills up during game play with a variety of colored pieces. You have a very simple objective: prevent the board from filling by forming rows of five or more pieces of the same color. The completed rows will disappear, leaving the spaces for new pieces. Sounds too easy? Build more lines in consecutive moves to get the combo bonus for a higher score. Only one piece may be moved with every turn, and only then if there is a clear path to its destination. As space becomes scarce there are less useful moves to choose from, so the game becomes increasingly more difficult. Six difficulty levels, the time-based and the custom game modes plus various additional game pieces like the two-colored balls, color buckets and propellers add more variety to the game. High scores are achieved by surviving as long as possible.