Nice idea here! Could very well be expanded into a deeper mechanic, with some more additions. Having to rely on knowing where you character is via sounds, and paying attention to where you go incase you'll need to see clearer there. Found myself having a bit of trouble getting consistent wall jumps, but that's probably just me with arrow controls.
Visuals are clean and nice, audio is great! Overall a cool idea that could be expanded very well into a larger game!