It was a great submission, very innovative!
I couldn't quite grasp how much I should listen for the bomp's ticking and how much to pay attention to the beeper, that's the main flaw for me. It was pretty distracting, because sometimes i heard bomb on the left and beeper in the center. EDIT: When I restartet I listened carefully and beeping is about corridors, my fault...
Also, maybe the timer should be longer, to let the player learn the topology of the map.
Also, a good idea would be to show the player the topology when the game ends.
I always wanted to make games playable for the deaf people, and I think this could be one!
Great game, good luck!