Really like the layout of the features list. I can read the important part that is bolded and keep skimming and come back to the rest later.
The game itself is my cup of tea. Blowing up demons with a shotgun, who could say no? I also like the closed in claustrophobic feel.
The 3d animations really tell me what type of game I'm getting into. The demons also almost look like head crabs from half life, not sure if that was on purpose but a nice reference regardless.
The title or banner(on the site) could have a bit more of a grungy feel. Maybe a demon took a bite out of one of the letters?
Nevertheless, good job, looks like a fun game!