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The Sky Patrol flying over the Unified World.

The Unified World was a fusion of Sonic's World and Earth 20XX, the creation of which was brought about by the Maverick Reploid Sigma in his attempt to drain them of its life force.

The world contains all of the locales of both Sonic's World and Earth 20XX meshed together and overlapping. Since the world was created during the time Sonic's World was experiencing the Shattered World Crisis, the entire planet was split apart.


Background Information

  • The Unified World is similar to the Skull Egg Zone, as both were the main setting of a Sonic and Mega Man crossover storyline and had design that borrowed from various Sonic and Mega Man locales.

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