nice little zombie wave game. I liked the kick back on the shotgun, ideally that would be tweened or animated so you gat a better feel for thats what is happening.
I did have a couple of bugs - zombies didnt seem to do much damage and sometimes none, I could let them come hug me and i was mostly pushed back and not hurt. They even managed to put me off the playable area haha.
overall fun though and I liked the tight close camera for the added drama