Sonic CD (USA)

Sonic CD (Japan)

Sonic Megamix 5.0

Sonic 1 Mega CD Port

Sonic CD Plus Plus

Sonic the Hedgehog CD (Jun 21, 1993 prototype)

Sonic the Hedgehog Megamix 4.0b

Sonic CD (Europe)

Sonic CD Plus Plus (JP version)

Sonic the Hedgehog CD (May 12, 1993 prototype)

Shining Force CD

Sonic the Hedgehog CD (Dec 4, 1992 prototype)

Snatcher

Sonic the Hedgehog CD (prototype; 1993-07-12)

Sonic CD with the Original Jump Sound

Sonic for MegaCD

Sonic CD Warped V1.0.0 (USA)

Sonic the Hedgehog 1 for SegaCD

Seima Densetsu 3×3 Eyes (Japan, Korea)

Star Wars Chess

Sonic CD Warped V1.0.0 (Europe)

Sonic CD Warped V1.0.0 (Japan)

Sewer Shark

Sonic the Hedgehog CD (Aug 1, 1993 prototype)