Sonic CD Cheats For Sega CD PlayStation 3 PC Xbox 360 iOS (iPhone/iPad) Android Windows Mobile - GameSpot

Get all the inside info, cheats, hacks, codes, walkthroughs for Sonic CD on GameSpot.
Sonic CD bridges the gap between his oldest adventures and his new digital exploits.

Sonic and the Secret Rings (2007) - MobyGames

Sonic the Hedgehog - Xbox 360 Music - Zophar's Domain

Sonic CD Videos for Xbox 360 - GameFAQs

Sonic the Hedgehog CD (2011)/Hidden content - Sonic Retro

Sonic the Hedgehog - Wikipedia

Sonic 3 appears to have already been delisted. It's the only one I

Sonic CD Box Shot for Macintosh - GameFAQs

Sonic CD Box Shot for Sega CD - GameFAQs

Sonic CD playthrough (Xbox 360)

Sonic CD Box Shot for Sega CD - GameFAQs

Sonic the Hedgehog CD (2011)/Hidden content - Sonic Retro