It's very simple, with only a facing sprite zombie (too much work to do the rest for a demo). You can shoot his torso and kill him in ~2-5 shots, or just bust a cap in his head and kill him instantly.
this is just to demonstrate how easy this is and how it should be coded in the engine. My computer time is almost up, so I'll expound on that later.
Also, I included a lot of gore. Try shooting him with a rocket.
