Sonic for MegaCD
Sonic the Hedgehog 1 for SegaCD
Sonic Megamix 5.0
Sonic CD Warped V1.0.0 (Japan)
Sonic the Hedgehog CD (prototype; 1993-07-12)
Sonic the Hedgehog CD (Aug 1, 1993 prototype)
Sonic CD with the Original Jump Sound
Sonic the Hedgehog CD (Dec 4, 1992 prototype)
Sonic CD (USA)
Sol-Feace