Neat concept, I think it could work well if you expanded on it more! The levels all felt very similar, it would have been nice if there was some more variety there. I was also running into some collision issues, both with pickups where it wasn't picking up objects as I ran over them, and with some edges where I was falling off the map. I like the base idea though, where the faster you go the more time you have next level! As mentioned in other comments I also think it'd be very cool if there were extra abilities, like a speed boost or something.