Did you let something test out the game cause the freezing after an enemy wants to turn to normal after a polymorph is kinda strange. There is also the fact that i just get my normal fighting stats after checking all my attributes in the Hero Tower after opening the game. And there are many other things that could need some improvement mate.
This is seriously the best Tower Defense game that i played since ages. Very interesting that you can chose different units in a Tower and the difference of the levels.
 "Arcalona"){kind=icon}
 "Incursion"){kind=icon}