Not bad, but it easily grows boring. Even after spamming a lot of shots, I don't get any extra zombies. I expected an army to shop up! xD
Also, I noticed the bullets are spawned from the center of the character instead of from the gun's tip. Looks weird.
Yeah, I was trying to work with objects in this game (multiple zombies) becaus I'm not big at Object Oriented Programming. The game is basically a shitty shooter hahaha.
About the bullet point, I found it almost impossible at my currently programming skills level to make the bullet be spawned at the tip of the barrel because it isn't just a question of distance from the center axis. I have a lot of things to get better at :(