Cool game! Any opportunity to bash some zombies is great. Visually you could have done more for the game which is why you get 4 stars. The sprites could be a little bigger and it is hard to read the info on each gun In the shop menu. I did find it quirky and enjoyed the fact that weapon upgrades are explained through trading zombie brains!
edit:umm I got trap in zombies and now I'm glitched
edit again:I fixed the glitch by reloading the site