Cool game. It was surprisingly fun running around turning off all the lights. Sometimes I had a hard time keeping my cursor on the the switches because the screen moved really easily, but I'd rather that than the screen moving too slow.
The only error I found was that the UI screens were way too big the fit on my screen. The start button was half off the screen and my final score was not even inside my screen. Maybe see if you can get the game to scale down in response to screen size.