Pretty fun, kept me playing for quite a while.
This game was a fun little time-killer that I could play over and over, if the game had a few more attacking modes I'd have played for longer and probably would have lasted longer too, but it was still fun to hack and slash at the zombies.
The graphics and animations were beautiful too, I liked the way they died, it was simply brilliant, and seeing that happen multiple times in one go was just great. I also happened to notice the goatse-themed level, which gave me a small chuckle too.
Hopefully you get round to making a sequel or at least something similar to this game, I enjoyed it and I'd definitely play a sequel.