you should lower house's hp in big waves...where a bomb tower should take care of them.but this dont happens so, or give lower hp, or increase the effectiveness of bomb towers!
anyway, cool game.
i think you should add a "boosters description". like how anti..flinn(? can't read that) works. change font because, in description of special powers, % of special bar used isn't readable.or make it readable...
and sometimes (most of the times) both of regenerations doesnt work.
but i love this game and ill give a 5/5. great job!
if you can get a "remaining barrels" bonus, its supposed to have the chance to finish a level without using all barrels.
in level 3 (or 4), there are 3 trees in the middle of map, u can water em in 1 shot, but level doesnt finish.