Okay, chance to be a good game. I liked it at the start, but did you even test it? Hard mode isn't hard, it's impossible. No healing in between chapters? Then how do you expect us to clear it at the end when we're barely alive. I know people have done it, but making it have to be near perfection is not a fun/challenging mode. Not to mention the shielding barely helps you and the enemies will either hit like a wet noodle or like a step dad. There is no in between.
Like other have said, the mouse should pickup coins while W and S control the guy. I can appreciate a upgrade game and am glad you're adding to them. But serious rework on the next one! Also, some more achievements! That's what I miss about games is all the achievements to get.
This game is my most favorite game on Kongregate. I've been here for years and have play numerous games and this one, by far, takes the winner. Because I love me some upgrade games and this one has done everything right. Please make more!
So....obviously it needs a "Start first wave" so we can play out the map/units. Also the whole flying enemies coming in from a random place is kind of annoying. It's a cool game and I like that there isn't many units, but it's a bit unfinished for my taste.
Seriously, the sticky grass on the monster levels is a terrible idea, specially when not having a way to get out. Please change it, it's a game buster when I'm stuck and trying to play.