Love the concept and it made me want to keep playing, but I didn't think I could get past the 2nd area.
There's no way to avoid the guys coming at you and you cant shoot fast enough to kill them all. One of the main issues I had was that the dead enemies would block my shots, so I couldn't hit some of the living ones. Also, a crosshair would help to aim, because the mouse was a little off from where the fireballs were going. Would love to try again if you release another version.
Edit: forgot to mention, the visuals were great and its a major reason that I found this so appealing.