Really great game feel. I really wanna compare this to downwell. They are very simmular. Short bursts of intense gameplay, broken up by a choice of upgrades. A template that often works wery well. Overall very good. Simple mechanics that you manipulate with the upgrades and superb gunplay. Music is decent and the sfx are really good. The visuals are also pretty good.
My biggest critice is the menus. You should be able to click on the options. At least that doesn't work for me. It just uses the currently selected option when i try to click an option. Its really jarring.
Well done overall