Quoted from Whysnow:cool idea but poor execution
I guess it all depends on your perspective - when I want to have a good game I play with a couple of background lights on. When I want to have a thrill I turn all the lights in the room off and just play the game - - when the lights go out, the music changes and gets all creepy, I really feel more of a connection to the theme... I don't think I've ever had a drain as a direct result of those lights turning off either.