Sol and the Endless Orbit
Solar Voltage
Solis
Something Ate My Alien
Somniac
Sonic 1: Alt Reality
Sonic 1 Co-op
Sonic 1 Delta
Sonic 1 Hayai
Sonic 1 on Bird Hill Island
Sonic 1 Pilot
Sonic 1: Point & Click Edition
Sonic 1 Proto-Mix
Sonic 1 Sigma
Sonic 1: South Island Expedition
Sonic 1 Strange Dream World
Sonic 1: The Super Challenges
Sonic 2 Addendum
Sonic 2: Chaos Adventure
Sonic 2 Westside Plus
Sonic 2: Westside Renovation
Sonic 3 Ultimate
Sonic Advance: Unnamed
Sonic Adventure Advanced