I like the consept and how it uses the "black and white" theme really well, but I think becuase the caracther moves so slowly, it doesnt keep me in the flow of the game, and the same about the ui that takes time to registed inputs.
also i would have been cool if you expiramented more with the consept of sound, for example: A radio that makes sound and you "see" it when it blacks out.
good job!