How do you beat w6 Castle?

How do you beat w6 Castle?

To defeat him, Mario must jump on his head three times whenever he comes out of the tank, or throw Bob-ombs at him. Each time he is hit, however, another cannon will appear on the tank.

How do you beat the castle in World 6 in Super Mario Bros 2?

To defeat him, either wait for him to do a giant leap and then run past him or shoot fireballs at him until he gets fried (requires a fire flower to do this). Then, hit the "!" switch on the other side. Unfortunately, your victory is short-lived as those nasty Koopalings will use their magic wands to make Bowser giant.