well I survived! I tried it on easy first, and then went straight to impossible. I think Easy was more fun, impossible got to a point where all the zombies were clumped in the middle so it was more of a case of just staying out of the way and preying for a damage boost but i beat it. I used the "weak" machine gun on that one.
with a bit more balancing I think it could be great! I didn't think I'd like the "click to move" but was quite suprised at how much I did actually like it. nice work.
honestly I wouldn't even know where to begin with balancing something like this, so I think what you've got so far is great. I essentially focused mainly on grabbing damage and firerate at any opportunity. that seemed to do me well. I survived so i must be doing something right haha. thanks again and good luck in the judging! :)