Interesting, but MAJOR flaws
Enemies can hurt you from pretty far away if below, and the machinegun's bullets start further away than pistol rounds. When your getting mauled from below by a critter that appeared an inch away, which means INSTANT and unnavoidable damage, you can't even kill it till you get some distance with either gun, tho pistol is easier. Also, there should be a sound to alert you to getting hurt. Many enemies walked through boxes. I even saw 1 stuck partway into a wall. I was disapointed that floor 4 lied about hearing something big (boss?).