Damn this is a fun little game, and an incredibly creative use of the theme! I have one complaint - needs more bloom 😉 throw down a post-processing volume and turn up the bloom, maybe add a vignette, and this will look amazing too!
Music fits the game perfectly, sound effects are nice and punchy. I actually can't really complain about anything, gameplay-wise. Movement is nice and fast, which is usually an issue with games like this. Maybe crank the default fire rate up a lot - I played with max fire rate because I didn't care about item spawns, and even that was a little bit slow for my taste, but that is really only a minor complaint. Great job!