I love this game! It is extremely polished, has amazing visuals, runs surprisingly smoothly in the browser and has some nice sound effects! However, there's still some room for improvements.
Firstly, I believe you went with something like DOOM, right? But not being able to move the camera up or down is kinda annoying in my opinion. Also, I wish the aim (the transparent dot in the center of the screen) was more visible, I find it kinda difficult to aim, and the bullet spread doesn't help with that.
Anyways, you managed to come up with something really good for this jam and I think this game has high chances of winning!