Boy! Most of the maps are way too hard! Even on Easy level.
It seems to me that the programmer(s) doesn't know how to keep a game balanced. I think they tweaked the difficult setting to fit their own demand. And this is what I hate since the days of CBM 64! Develop your games for your customers, not for your own!!! (Changed rating from 4/5 to 1/5 and removed from favorites)