I see you also had the idea of using falling as a gameplay element :D
Cool idea, I found the fire (especially below) approaching pretty fast without a warning when falling to fast, I had to guess when to stop.
Ideas for optimization: Proper font scaling (fonts were all blurry), label alignment (the numbers on top, whatever they were, were not aligned), better indication of GUI elements (again, the weird numbers on top), allow button input for restart, use customized GUI elements (looks better, especially in low resolutions as opposed to default buttons).
Anyway, well done. Keep falling (err going)!