The game lacks any sort of progress synchronization between the iPhone / iPod and iPad versions, though most times can synchronize. It is disappointing because the rest of the asynchronous elements are so well done. The HD version should at least be universal, it is 2012! Get with the program! The first three stars on one level is very difficult, seemingly "money for coins" difficult, because of the tight margins, the best with faster acceleration and higher top speed can be achieved. The increased performance period seems shockingly underused at best, unnecessary at worst.
