Love the artstyle. Making enemies and weapons high-res sprites is an interesting choice but I can see it giving the game it's charm.
Movement is solid, though there is a bug with sliding is that if I let go of Shift mid-slide the sliding speed stops but the leg and "fast lines" still remain until the slide would be normally over.
Kicking down (or rather, out) doors is satisfying and shooting seems okay so far, though difficult to tell without any active combat. One thing I noticed that might be a concern is how spread is standard instead of growing dynamically so that the first shot is accurate and then the spread/recoil grows more as you keep shooting, but might work well enough without that regardless depending on the combat.