The controls are VERY unconventional but it works well. It's not my type of game so I won't judge the gameplay, but the art and ambience are well crafted. I think you forgot to loop the music (if you used Godot, it's in the music's import settings). Also I managed to get into a state where I could only move while aiming, check your logic. Also the cone of vision goes over the HUD, check the order of your nodes.