This was a fantastic game.  I loved sneaking around trying to figure out where the glasses were lol.  In one of the levels, i basically just ran around with my eyes closed until i bumped into the glasses, but then the last level you really had to hunt. That was fun.  I think if there were directional sound and maybe some different footstep sounds and consequences for knocking certain things over, it could be pretty cool.  Though flying around looking at walls was also awesome.  Great game, I would be hyped for more levels.