This game is so bad ass, I fucking love it. there is 1 bug I found which is for me, I found it when setting my resolution then trying to setup the sound, it went back to fullscreen & max resolution (based on my TV Screen)
I give this game a 10/10
-Great Ambience
-Gunshots sound awesome
-For a demo, really good enemy variety
-DooM/Quake/Classic Duke Nukem Vibe.
-For a demo, nice weapon loadout that you can obtain.