2 comments.
I don't like that the enemies are harder to kill, but I see that you added the ability to keep a weapon after a enemy dies, so I guess it's ok if theres enough of those around.
The other comment is, you should change the text "bottle,knife,blah,blah" to "armed". Cause it's graphics change when enemies die. Or perhaps just make one graphic for all the weapons and name them all that one weapon. I'm gonna play thru this more tho to see what else is different.