Dismantle a floating cloud of blocks by pulling rows and columns to arrange it by color. In each stage, the puzzles grow larger and the time pressure intensifies. The gameplay is highly free-form. Unlike other puzzle games, there are no walls or boundaries, and the clouds can be molded into any shape. Each cloud has its own gravity, which pulls the blocks inward. The eight stages are carefully tuned for a balanced difficulty curve. Progression requires mastering skills and strategies as well as completing stage objectives to gain bonus time.