Thank you to those who said shoot In head only because I lost an over level 100 one of these things and wasted so many cannonballs and use way to many resources.I was even had a name for him. Hit the head only you might have to adjust the cannon to hit the head.(Or have another cannon ready just in case it runs away and you can't hit it’s head) that happened to me before.Hit the head only or you will end up killing it.This help is for cannons well is easier for cannons because I used cannons. Hopefully this helps.