Falling clusters of colored balls are piling up fast! Clear the field by arranging like-colored balls into groups of four or more. Stay sharp as the screen fills up. Well-placed balls can clear multiple clusters for a level up! PileUp! is based on the online PC version, which has been played over 25 million times. The mobile version retains the same playability and fun factor of the PC version, with unlimited levels, colorful graphics, realistic physics, and great sound effects.