It was a fun enough doom-like, and it's clear you were doing this to learn how, but it didn't really fit the theme in my eyes, nor was it really doing anything of it's own. The graphics were nice, but the skulls felt out of place in the game. The rendering of the skulls was also all over the place, often not appearing correctly unless you were in their face.
A good start to making a proper 90's style boomer shooter, but as is stands, it's not really far enough to be even a proof of concept.