Rock World Zone​,[1] known simply as ​Rock Zone​ in concept art, is a scrapped Zone from the game Sonic the Hedgehog 2.  During the beta development of Sonic 2, when time travel was planned to exist, (which was later re-worked for Sonic the Hedgehog CD) this level was supposed to be the past version of another scrapped level, Dust Hill Zone. Aside from this, there is very little information about the Zone.


  1. Sonic Retro. Retrieved on 2 October 2017.

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