Pretty Good!
Man, I've checked out the other entries for this contest. They all SUCK, if compared to this one.
This is a great piece of art made in TGF2, I assume. Pretty fun to play, and sickly hard, too (while on hard/insane). You made really a great piece of work. Of course, it's not perfect - these kind of games, when made in TGF2/MMF2 tend to lag a lot. I presume you did clearly a great job on polishing the code so it won't.
It's way better than my Zombie Arena, in my sincere opinion. Graphics are great, screen effects are AWESOME - and I particularly LOVED the demon zombie rounds, pretty creative you are.
9/10. Congratulations, you have a serious chance of winning!