This is awesome, I'm happy to see a tower defense game -- one of my favorite genres! I really enjoyed the game. You executed the shop, camera angle, and different items well. The game feels strong for what it has. I also like how you can place the towers and other objects pretty much anywhere on the map, not just in pre-chosen positions like in most tower defense games. That alone makes the game stick out in a unique way to me. 

Great job!

-AJ

Kind of fun to see we had a similar idea! It's sort of hard to criticize it in an unbiased way, but there are some cool elements I wanted to point out.

I like the different maps! They all manage to feel pretty unique, and I'm particularly fond of how the Hard Map has enemies that come from "behind" the default camera position- it makes it so the camera is more than just a quality of life feature. Very cool!

I also like the concept of the shop system. In practice the limited options means you tend to receive duplicate options, but I like it in concept, it's not something I've seen done in a tower defense game before

This game is really cool! I can tell you put a lot of time and thought into making it. Everything ran pretty smooth, and it was quite fun to play. The only criticism I can think of is when I was reading the help menus, I think there was a typo. It says game is over after fight hits instead of five. The only problem I had during gameplay was on the hard map, the last enemy got stuck on some invisible wall by the tower and the game couldn't progress. Overall, though, really amazing job!! :D

I really like the store at the beginning of every wave and your concept for the game is highly addictive.  I would like to have seen a set number of waves before automatically moving to the next level and feedback to the player as to progress made to the next level. I wasn't sure how I was doing in terms of making progress.  Additionally,  some sound effects for towers firing as well as player taking damage and some background music would add to the ambiance of the game.  I still played it for quite a while last night and this morning; it was fun.