I really liked that you found a nonviolent way to deal with zombies! ^_^ The number of graves went up very fast, which was nice in that it filled up the screen after a few levels, but it caused me to have to start off kiting so I would not be surrounded, and then it seemed the number did not matter since they were all clumped up. I liked the way the zombies would overshoot the player (I think they got faster over time?) and then course correct, their movement felt very undead.