Ok. So you rage against scratch-users because they are too lazy to learn a "real game engine" and then you deliver ... this?!
Art is a complete mess No music Footstep-Sounds but no gun-sounds? Obviously never dev-tested (it was too easy to find a spot were enemies can't reach me anymore) Enemies are just capsules Why do I have to select a weapon first? Being not armed makes no sense.
and my personal favorite: UI. It is a perfect example of how to not do an UI.
Really nothing fits together in your game. Not even the name makes sense:
1. Zomie Apocalypse? I haven't seen one. It is more a Capsuel Apocalypse.
2. 3072 - guess that should be the year. But there is absolutley nothing futuristic in it.
Seriously: I've played scratch games which are far better than this here.