Haven't been able to work on It but ill look into fixing some of these things! Is the zombie thing happening on multiple paths? Thank you for playing my games as well.
I'll have to play it a little more extensively to check on it. I'll do some experiments! :D
Edit: So I did some testing and there is just a "dead-zone" in the middle right area of the screen. You can test this at any time by firing the gun into that area, there is just no bullets coming from the "gun." I hope this helps.
Btw, I forgot to mention, I love that you have multiple paths like that, great addition!