This is an interesting idea! I found it pretty hard to aim my shots, maybe it would feel better if you could shoot with a button press instead of shooting automatically at regular intervals, though once I started to kind of figure it out it did make for an interesting challenge I think. As a screenshake enjoyer, I very much appreciated the heavy screenshake whenever a shot was fired, though the projectiles felt a bit small for how powerful they otherwise felt. I liked it! Great job :)