I like the perspective. It looks unique even among other 3d games from this jam.
Score system would be nice to know how well I'm doing.
Also, not sure if it's just me, but the cursor moves very fast. I have 1200-1500 dpi mouse, which is quite a lot, but in your game it moves much faster than in any other FPS. Sometimes it's hard to aim like this.
Great work, keep it up!