Great music. I especially liked how it got more intense when the clock almost runs out.
I wish there was some way to tell what walls were fake without the vision ability. When you don't have 3 vision tokens or are trying to save them, you end up just rubbing up against walls to see what's fake. It starts to get tedious after a couple of levels. The auto-generation doesn't help in this regard; deliberate maze design could use hints and context clues to guide the player.
The player's movement felt a bit slow. It added to the tedium of checking what walls were fake. I imagine that if the player was a bit faster and could zip through the mazes a bit quicker, the game would feel more energetic.