I'm terrible at video games so I only got to wave 5 :/
I saw this game go through development on Discord and I have to say, the final product is incredibly fun! I especially love the mechanic of your gun actually propelling you backwards. That was so much fun once I discovered it.
My only real gripe is that the graphics are a bit basic. They're just colourful rectangles which, while it has a distinctive style and looks great on screenshots, I can't help but wonder what this game would be like with original characters.
Other than that, excellent game! If this was on mobile with tilt controls, I'd def play it