- I like the look of it, reminds me of Duke3D and Shadow Warrior.
- The gunplay is mostly alright. The shotgun could be a bit beefer. The flamethrower seemed quite weak too, and enemies don't have a "being on fire" animation, which you should definitely add along with accompanying screams.
- The levels seem to have very odd scaling of objects and buildings. The toilets on the theatre level have very tall stalls, and the sinks were about the same height as the player. Some buildings are quite large with big rooms, often overly so. I don't know if it's a problem, but it's definitely something I noticed. It's just very inconsistent is all.
- I didn't know how to progress after getting the green key in the street level.