**Controls** Tap a marble source at the top of the screen to release the marbles. On a computer, use the left mouse button. Tap the power-up buttons at the bottom of the screen to activate them. Some power-ups may ask you to select a tray or a marble on the track. **Instructions** Release the colored marbles and send them onto the moving track. Marbles are automatically collected by the matching colored trays. Fill and clear all required trays to complete the level. Plan each release carefully and prevent the track or chute from overflowing. Some levels also have move limits, time limits, bombs, water, ice, barriers, special objects, and vehicle-based marble delivery modes. Use power-ups strategically when you need help.