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Sonic the Hedgehog (Sega Genesis) - online game

Sonic the Hedgehog 4: Episode II, Sonic Wiki Zone

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Sonic the Hedgehog 4 Episode II Review - Sega Desecrates Sonic 2's Legacy With Inane Co-op - Game Informer

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Sonic Origins for Nintendo Switch - Nintendo Official Site

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Sonic Generations (Greatest Hits) - PlayStation 3 : Sega of America Inc: Video Games

Sonic 3D Blast - Sega Genesis, Sega Genesis

SEGA AGES Sonic The Hedgehog for Nintendo Switch - Nintendo Official Site