The item tray can hold a maximum of seven items at a time. If your tray is full you may clear the tray of unmatchable items using Coins; this will also put some powerups on the board to help you clear the level a little faster! If you choose not to clear the tray it will count as a failed level and one life will be removed from your totals. The Undo Broom booster can also remove the last item from your tray.