well. good when it gets more stuff. once you beat the rock giant he goes under negative health. it keeps that way and his health goes up 2 points after every time you try to fight him again and you get the rewards. and it would help if you didnt have to go to the main screen all the time. you could make it a bit more interesting as well. by some type of point. or quest.
found lvl 11 really easy. waited two turns for the big one and attack it. than they all go to that. then i kill the ones that just weakened themselves. 12 is hard
to kill herragod you must use subversion. when you knock his health down around10k(to 990,000) then use subversion and it should do 2 mill or 3 mill dmg. easy boss
i had the same problem kobey did. and you have to beat the callenge on intermediate defense mode. its not a hard challenge it was really easy. all you have to do is walk around after the zombies die. and get stuff place turrets and watch. its simple.