This is a really cool idea. The whole mechanic with the shield hiding the light is super clever. The only thing I'd suggest is making the area exits a little more visible. I accidentally walked into the exits a lot. Really sick game though!
That is my main complaint with the game too, as the conformation of the rooms does not tell you well enough were you can exit, but this is what I managed to come up with concering procedurally generating rooms in a couple of hours, I would surely improve this given the time
