This game is pretty neat and okay for an arcade-shooter. Brings me back to when I used to play Call of Duty: Infinitite Warfare zombies-mode with friends way back when ~
The only complaints I have are that the 3D movement (aiming and looking around you with your mouse) feel way too wonky/weird, almost like either you or your character would be drunk. Also you getting stuck in corners can lead to some frustration when trying to escape from da zomps
The second thing is the ammo-system and the way it has been implemented. When I read your comment on the game's page, that at least helped somewhat since it let me know that ammo at least exists. But it is still a bit frustrating that once you run out of ammo, you're just supposed to bum-rush through the zombies to find yourself more ammo