Fun
This is a great game, so please don't hate on me if I go straight to the things that could make this even better.
First off, there were some major typos/errors in the tooltips and dialogue boxes. I'm not sure if those were through a translator or something (as in if this game was originally made in another language), but some of the phrases were confusing at best, and downright annoying at worst.
Secondly, the gameplay can very quickly get repetitive and boring. Since you start off with all types of soliders avaliable, the same amount of money every time, and the same of battlefield terrain (straight up and down, charge and meet in the middle), all you have to do is find a half-decent combo of upgrades/troops and stick with it every time. Seriously, most of the maps are pretty big with plenty of cover/possible routes and all we get to use is one little green square near the bottom?
Lastly, the lack of need of strategy might appeal to some but might ruin the game for others. Really, making sure your troops at least weaken the enemies', and keep hitting the enemy boss with your special attacks. I doubt most people have had a single victory by defense. It's almost laughable how one Elite Archer with 10 haste points can easily wipe out the entire enemy army and at least half of the boss' health.
Overall, this is still an addicting game that's fun and time-consuming. Keep it up!