Combat feels VERY clunky. I really don't see how the hype for this game is justified. Also, most upgrades are useless, and too expensive. It could do with a little tweaking.
Easy way to beat level 16: Start at the bottom middle of the map, keep charging and slowly move your way up. Once your charged finish just unleash all you got, don't worry if you touch the boss because oddly enough it doesn't do you any damage. Just repeat this about 2 times and you're done.
Note to all: The last hard badge doesn't mean conquer every square. It just means conquer every castle. Thus you can plan ahead and avoid excessive grinding. It will probably take you at least 3 hours.
Suggestion: Spacebar to close menus. Also, perhaps implement wasd controls or do away with either the mouse or the keys completely, as it is troublesome to use arrow keys together with the mouse.
There should be a way to skip the annoyingly slow battle results screen. Also, this game REALLY needs a speed up button. Overall, I found the game rather boring.
There are a few logical leaps. To name one, before I even talked to the man who mentioned you need a white horse, using anything other than lime on the horse gives "That won't make him white". Also, the game is a little buggy at times, as others have pointed out. 3/5