A hidden gem!
This is a really solid game, with a great execution of the theme. I loved how I had to choose carefully what upgrades I took and what I lost. The player and enemies are AWESOME!!!!, I loved them!!!! Such a cool design and they all play great and the animations were really good too!!!
A bit of a game break bug I found is that you can spam the gun like there is no tomorrow, which is easy with a double-click button on a mouse (I have a double click button on my mouse). Adding a cooldown after each shot will help fix that xD
Otherwise a really solid solid entry, Well done, I would love to see this go on to a full release, I'd play it xD