I like the visuals, the sounds can be a bit too much at times (when there are too many zombies on the screen), the concept is creative - usually we are on the other side of the battle, but that makes me think that a game where you play as zombies instead of humans could be pretty cool.
I think the game could be more dynamic if you were able to move a bit faster and maybe have a dash movement or something (to catch the humans who just escape your grasp when you're walking), but overall I had a fun time playing it. Good job!