Great art and a very creative concept. Unfortunately it was really held back by the character controller. It took me over 5 minutes to get past the first level just because the character moved at an inconsistent speed and it didn't jump consistently when I pressed space. I'm not sure if this is due to low framerate or what, but it definitely had be malding a bit.
But trying to look past the character controller, you came up with a super cool concept. I imagine that the concept stemmed from those screens at the beginning of games that ask you to adjust your brightness. I'm glad you gave us the ability to pick whatever level we want, because the game is really hard o_o
And I LOVED the soundtrack. Not only does it fit my taste, but it also fit the game as well!