Sonic the Hedgehog: Official Game Guide, Sonic Wiki Zone

Sonic the Hedgehog: Official Game Guide is a strategy guide book published by Prima Games in the United States for Sonic the Hedgehog (2006).

Sonic the Hedgehog Modern Style Guide, Sonic Wiki Zone

Sonic the Hedgehog Official Guide Book, Sonic Wiki Zone

Sonic the Hedgehog (2013), Sonic Wiki Zone

Sonic the Hedgehog Modern Style Guide, Sonic Wiki Zone

Sonic Advance — StrategyWiki Strategy guide and game reference wiki

Sonic The Hedgehog - RPCS3 Wiki

Sonic Adventure 2: Battle Strongest Strategy Guide

Sonic Colors: Ultimate, Sonic Wiki Zone

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Sonic Origins Plus, Sonic Wiki Zone

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