FINALLY! A GOOD DEFENSE GAME WHERE I DON'T GET OVERWHELMED ON LEVEL 3!
Very nice game. Should have had a final zombie bowser boss though. It was just sorta abruptly ended. Anyway... The game was a little repetitive, but it wasn't too bad. All the automatic guns were completely useless. I ended up using the pistol until i got the shotgun, then when I got the grenade launcher upgraded, their shit got messed up. The grenade launcher should have been the final gun to unlock. Maybe if the chaingun had explosive ammo or something, the only thing it had was more ammo than the other automatic weapons.
Anyway, nice game. Aside from a few shortcomings that don't really hurt the game much, it is a very good way to kill an afternoon. So, kudos to you good sir.