Despite my 3 star rating, I think it's more "above average." Cool idea and aesthetic, but very short and not very complex in terms of the layout. Thought ammo was a little tight, since I didn't have any shells left for the end first time I played. (Though, you can just jump into the exit.)
Would definitely be cool as part of something bigger, like a set of maps or if the community had another event like Noir Jam.