Mobius Encyclopaedia

Bygone Island

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Bygone Island is an island in the Sonic Boom Zone that is home to Sonic the Hedgehog and his group of friends. It neighbors an island that is home to Dr. Eggman, who frequently attacks or visits Bygone Island.


Known Inhabitants

Background Information

  • Bygone Island is the setting for much of the Sonic Boom animated series and video games.

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