Use two supercannonball cannonballs
First you have to fire a cannonball then type supercannonball as it reaches Skarl’s castle. Then before he fires, you have to restart the game. The first shot you fire will be a super cannon ball and you can still use the cheat. Neat huh?
Maintain the effects of supercannonball
Turns out when you type the cheat *supercannonball* right after blasting Skarl’s castle, the impact of the cannonball will repeat itself, only stronger. Then on your next turn you get the football shaped cannonball. – superhuman 163
Football cannon ball
If you type supercannonball (once per game) you will get a football shaped cannon and it will destroy everything in your way. – kingjon21