After the Conehead Groom is defeated, his Cyclops henchman escapes with the Green Princess. The Knights respond by launching themselves through a stained glass window via the Conehead's pipe organ cannon, and landing on the Cyclops' fleeing carriage.
The Wizard's castle ascends into the sky at a rapid pace. The Knights were, unfortunately, not on the proper side. What do they do? Ultra MagicDrillJump.