Creepy stuff! Reminded me of the 'Junkie limbo' scene from trainspotting. Nice creepy music too. If there's one thing I think could be improved it's that adding a difficulty curve would have been nice. If there is one at least I didn't notice it.
And it hadn't occured to me but it is a bit like that scene! haha.. I should indeed have made them speed up as the game went on.. Thanks for the feedback!