Sonic Origins - How to Unlock All Sonic CD Extras (D.A. Garden, Visual Mode, Level Select, and More) - YouTube
Sonic CD - Debug Tutorial [Sonic CD (2011)] [Tutorials]
Sonic CD How To Unlock All Extras - YouTube
Press The Buttons: Extra Levels Cut From Rereleased Sonic CD
Sonic CD - Sound Test Easter Eggs - YouTube
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Sonic CD Restored [Sonic CD (2011)] [Mods]
Sonic the Hedgehog CD/Hidden content - Sonic Retro
Steam Community :: Guide :: Sound Test Codes for Sonic CD
Sonic the Hedgehog CD (2011) | Sonic News Network | Fandom
Steam Community :: Guide :: Unlockables, Soundtest-Codes,Mods,100% Save File(and Achievments,kind of)
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Sonic 2 Sonic for CD [Sonic CD (2011)] [Mods]
Steam Community :: Guide :: Unlockables, Soundtest-Codes,Mods,100% Save File(and Achievments,kind of)
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Sonic CD: Episode Metal [Sonic CD (2011)] [Works In Progress]
Sonic CD and Knuckles [Sonic CD (2011)] [Mods]
Steam Community :: Guide :: Unlockables, Soundtest-Codes,Mods,100% Save File(and Achievments,kind of)
Sonic Origins: Can You Find the Sonic CD Sound Test Menu? - Gameranx
Sonic CD for Xbox 360 Reviews - Metacritic
Sonic the Hedgehog CD/Hidden content - Sonic Retro
Steam Community :: Guide :: Unlockables, Soundtest-Codes,Mods,100% Save File(and Achievments,kind of)
Developer Diaries: Sonic CD Secrets, Extras, Scrapped Stages and Cut Content! | Sonic the Hedgehog! Amino
Zone: 0 > Sonic CD > Other Modes
Beat the Backlog: Sonic the Hedgehog CD – Source Gaming
