It has a sort of hypnotic feel. Very dull, yet it's relaxing instead of tedious. You go from one area to the next, fighting wave after wave of three clones of the same guy trying to kill you. I suppose the music makes or breaks a game like this, and it's got a nice soundtrack.
So it's boring and
I don't know why I'm still playing, but then I wonder, is it worth it to get the knuckledusters? Should I butt these guys, or line them up and shoot them? And then it becomes apparent that if I had been more liberal with the rifle, I could get a refill halfway through the level...
I guess it's at least marginally interesting to TAS, however perverse it might be as entertainment. If anyone decides to work on this and needs memory addresses, let me know and I'll see if I can help you out.
As for glitches, I found nothing significant. I thought I managed to get hit and die as I finished the last boss, but I accidentally re-recorded over it and couldn't do it a second time.