Pretty interesting graphics and sound design, but I feel that some of the 'triggers' aren't really well communicated. I was eventually able to deduce what was expected of me outside of the obvious text, though when I went to turn off the lights a second time I was at a loss (not environmentally), and then the timer came on screen. Maybe make the window that opens a bit more obvious, visually, or give it a distinct sound. Other than that I would like to see this expanded upon a bit more. Good job.