So, I think the actual gameplay is not bad, but it was really poorly presented. I think you went overboard with the dialogs and menus and I would have preferred for you to spend more time on the shooting. I have no idea what to icons at the top left were, I think there were things that I was acquiring as I progressed but their meaning was unclear.
The shooting was annoying because I had to press the mouse all the time, and basically as long as you spawn the mouse button, you win(kind of easy). There was not much challenge.
Next time, I would recommend going for simpler graphics and icons, make sure you communicate the function of things so that players can get into it easier. I almost gave up, cuz i was confused.
Good luck!