The controls aren't that bad with a keyboard, but hyper-sensitive. The idea to use the X-Box controller is clever, but try to make it equally playable without. A mute button, as many have said, would be nice...as for the ending, I watched it on YouTube...it's not that great. I mean, I know you were upset over removing it, but it's kinda childish, so don't feel too bad.
This game is WAY too long, and not enough challenge. After about level 10, you get the basic patterns down pat. After that, it's just a question of how long are you willing to spend clicking, not how hard is it. Bigger levels is not a substitute for a challenge. Maybe change it up by adding new features every 5 or so levels, like color-specific connections, or something...ANYTHING to break up the monotony.
The last level is glitchy...I had to play and beat it three times before it registered...the last difference lit up, the tone played, but the count stayed the same. Worst part is: there's no way to take a screenshot and send it in because they can't tell from the pic if you did it or not! Beyond that, not bad.
 "Meat Boy"){kind=icon}
 "Pillage the Village"){kind=icon}
 "loops of zen"){kind=icon}
 "6 Differences"){kind=icon}
 "Speck Oppression"){kind=icon}