I have to say, I don't really have all the games on my list, please, let it be clear, this was made in May so many games weren't cofirmed by then.
Here are the list of the games from 1991-2007

Sonic The Hedgehog(Master System)
Sonic The Hedgehog Chaos(Master System)
Sonic The Hedgehog(Genesis)
Sonic The Hedgehog 2(Genesis)
Sonic The Hedgehog 2(Master System)
Sonic The Hedgehog 3(Genesis)
Sonic 3D Blast(Genesis)
Sonic & Knuckles(Mega Drive)
Sonic The Hedgehog Spinball(Mega Drive)
Dr. Robotnik's Mean Bean Machine(Mega Drive)
Sonic 3D: Flickie's Island(Mega Drive)
Sonic Compilation: Sonic 1, 2 and Dr. Robotnik's Mean Bean Machine(Mega Drive)
Tails Adventure(Game Gear)
Sonic Labyrinth(Game Gear)
Sonic Triple Trouble(Game Gear)
Sonic Drift(Game Gear)
Sonic Drift 2(Game Gear)
Sonic 3D Blast(Sega Saturn)
Sonic R(Sega Saturn)
Sonic Jam(Sega Saturn)
Tails The Music Maker(Sega Pico)
Sonic The Hedgehog: Pocket Adventure(Neo Geo Pocket)
Knuckles Chaotix(32X)
Sega Smash Pack(Dreamcast)
Sonic Adventure(Dreamcast)
Sonic Shuffle(Dreamcast)
Sonic Adventure 2(Dreamcast)
Sonic Adventure 2 Battle(Gamecube)
Sonic Adventure DX(Gamecube)
Sonic Mega Collection/+(GC, PS2 & Xbox)
Sonic Heroes
Shadow The Hedgehog(Gamecube)
Sonic Gems Collection(Gamecube)
Sega Smash Pack(Gameboy Advance)
Sonic Advance(Gameboy Advance)
Sonic Advance 2(Gameboy Advance)
Sonic Pinball Party(Gameboy Advance)
Sonic Advance 3(Gameboy Advance)
Sonic Combo Pack(Gameboy Advance)
Sonic The Hedgehog Genesis(GBA)
Sonic Heroes(PS2)
Shadow The Hedgehog(PS2,Xbox, GC)
Sega Superstars(PS2 w/ Eyetoy)
Sonic Gems Collection(PS2)
Sonic The Hedgehog 2(PC)
Sopnic The Hedgehog CD(PC)
Sonic & Knuckles Collection(PC)
Sonic R(PC)
Sonic's Schoolhouse(PC)
Sonic Heroes(PC)
Sonic Mega Cllection Plus+(PC)
Sonic Riders(GC, PS2, Xbox & PC)
Sonic The Hedgehog/Next-Gen(PS3 & 360)
Sonic & The Secret Rings(Wii)

So that's list I posted for the games. (less info)