*whew* This is hard to play when I'm actually tired and have blurry eyes, haha. Very neat concept, though. I think it'd be cool if more games added in tiredness effects where appropriate. My mouse is too flaky to use for this, so I tried using a trackpad; I'm not sure if that made it easier or harder. Either way, I definitely didn't make it to the third level that people seem to be referring to below.