What are the titles of the different Sonic the Hedgehog games
Mega Drive/Genesis:Sonic the hedgehog (Also available on Master System, Game Gear, iTouch/iPhone and Game Boy Advance)
Sonic the hedgehog 2 (Also available on Master System, Game Gear and iTouch/iPhone)
Knuckles in Sonic the hedgehog 2
Sonic the hedgehog: Spinball (Also available on Master System, Game Gear)
Dr. Robotnik's Mean Bean Machine (Also available on Master System, Game Gear)
Sonic the hedgehog 3
Sonic and Knuckles
Sonic 3D: Flickies Island/3D Blast (Available on SEGA Saturn and PC)
SEGA Master System:Sonic Chaos (Available for SEGA Game Gear)
Sonic Blast (Available for SEGA Game Gear)
SEGA CD:Sonic CD (Available on PC)
SEGA Game Gear:Sonic Drift
Sonic Triple Trouble
Sonic Drift 2
Tails Adventure
Sonic Labyrinth
Tails Sky Patrol
SEGA Pico:Sonic the hedgehog's Gameworld
Tails and the Music Maker
SEGA Saturn:Sonic Jam
Sonic R (Available for PC)
SEGA Dreamcast:Sonic Adventure
Sonic Shuffle
Sonic Adventure 2
PC:Sonic Schoolhouse
Sonic and Garfield Pack
Sonic Adventure DX: Director's Cut (Available on Gamecube)
Sonic Heroes (Available for Gamecube, Xbox, Playstation 2)
Sonic Mega Collection Plus (Available for Gamecube, Xbox, Playstation 2)
Sonic Riders (Available for Gamecube, Xbox, Playstation 2)
Sonic and SEGA All-Stars Racing (Available for DS, Wii, Xbox360 and Playstation 3)
GameBoy Colour:Sonic the hedgehog Pocket Adventure
Game Boy Advance: Sonic Advance
Sonic Advance 2
Sonic Advance 3
Sonic Pinball Party
Sonic Battle
Gamecube:Sonic Adventure 2: Battle
Shadow the Hedgehog (Available on Playstation 2 and Xbox)
Sonic Gems Collection (Available on Playstation 2 and Xbox)
Playstation 2:Sonic Riders: Zero Gravity (Available on Wii)
Sonic Unleashed (Available on Wii, Xbox360, Playstation 3)
Nintendo DS:Sonic Rush
Sonic Rush: Adventure
Sonic Chronicles: The Dark Brotherhood
Sonic Classic Collection
Mario and Sonic at the Olympic Games (Available on Wii)
Mario and Sonic at the Olympic Winter Games (Available on Wii)
Sonic Colours (Available on Wii once it is released in late 2010)
Playstation Portable:Sonic Rivals
Sonic Rivals 2
Xbox 360:Sonic the Hedgehog: Next Gen (Available on Playstation 3)
Sonic the Hedgehog 4 (Available on Playstation 3 (Playstation Network), Wii (WiiWare) and iPod Touch/iPhone (iTunes) when released)
Wii: Sonic and the Secret Rings
Sonic and the Black Knight
Nokia:Sonic N