Crown Rush lets you start levels with Lightning Bolts and Clocks items you can collect on the board. Lightning Bolts will destroy 3 unneeded items, and Clocks will give you 10 extra seconds to your timer.
Each time you pass a level without losing a life, the Crown Rush will give you more Lightning Bolts and Clocks. Win 3 levels in a row to reach the maximum Crown Rush! Losing a level will reset your Crown Rush, so be careful!