Ok.. pull no punches...
First...
Black and white.. with no textures? ummm
no one will want to play a whole game like this.. no way. The concept is overly dogmatic and contrived. rethink your visual concept to allow for more variation in visual experience. At least make b&W textures.. bricks, concrete, etc. A little spot of color here and there would do wonders.. like a pool of red blood.. or whatever.. this way you are making a more sophisticated visual statement.

The camera approach needs serious fine-tuning of course..movement is almost impossible in some areas.