It's fun to shoot the zombies, but I couldn't figure out what the broom (?) and bone saw did. I thought maybe they could be used to cut up the zombies so they couldn't reanimate, but it didn't seem to do any damage or do anything to their corpses. Maybe a tutorial or just some instructions on the game page could help with that. Also, maybe it was because I couldn't figure out the broom and saw but I killed lots of zombies and still ended up with 0 points.
And one little thing, when I started the game for the second time there were two instances of the music playing at once.
I like all the blood effects and how you can clean them up with the mop.