I saw your progress on the #7dfps hashtag on Twitter, and I was immediately hooked. The artstyle and audio effects are on point - even if it wasn’t technically possible on old arcade cabinets :)
I did think the movement is too floaty; gravity and air control are low while movement speed is high, leading to an unresponsive scheme. I also thought there was a weird amount of mouse acceloration which discouraged me from aiming.
But the game design is solid. Mechanics are introduced in a safe and contained environment, levels are tight, objectives are readable, and nothing is really wasted. If you do keep working on it (which I recommend you do), I’d tighten up the movement and sell it as a speedrun game. Good stuff.