Maze concept is interesting, and the on/off mechanic is nicely implemented in the game. However, I kept on wondering whether I was going the right path or not throughout the game, especially at the part where I had to deal with a bunch of on/off switches with only one leading me to the right path. The unfitting music didn't help either; I had to mute the volume while playing the game.
The boss battle was nice, even though I had to figure out how to defeat it on my own.