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List of Sonic the Hedgehog video games - Wikipedia
Evolution of Sonic the Hedgehog (1991 - 2018) - YouTube
Sonic The Hedgehog - Play Game Online - Arcade Spot
Sonic the Hedgehog™ Classic - Apps on Google Play
Sonic Frontiers for Nintendo Switch - Nintendo Official Site
Sonic the Hedgehog - Wikipedia
The 10 Best Sonic Games - IGN
Save 75% on Sonic Mania on Steam
Sonic Frontiers | Official Website
Sonic the Hedgehog - Sonic Wiki Zone | Fandom