Ok, the game needs some actual fixing before anyone would want to play this. I actually bought the game to try it out. Beat all 20 days and can say it was a pain. The aiming was not great. You have to keep on right clicking to have the projectile to shoot where your mouse is aiming at. Like Speegey said, day 1 is the decider on how you progress the game since every unit is expensive. Once you beat all 20 days you think you unlocked all the animations in the gallery, but you don't. The game says there's a new game+ once you beat day 20, but there isn't one. I start a new game thinking maybe that's new game+, but it just starts a new game and the gallery option is grayed out.
In all, I want to enjoy this game, but these issues really dampens the whole experience and it's not really worth the price as of right now until the issues of the game is fixed and is a little more fleshed out. I feel like another update, just a small one, should be pushed out to fix the issues of the game to make it somewhat playable.