List the games you own. Simple.
Genesis:
Sonic the Hedgehog 2
Game Gear:
Sonic the Hedgehog 2
Sonic the Hedgehog: Triple Trouble
GameBoy Advance:
Sonic Battle
GameCube:
Sonic Adventure 2: Battle
Sonic Adventure DX: Director's Cut
Shadow the Hedgehog
DS:
Sonic Rush
http://img.photobucket.com/albums/v369/FlashArchive/sonic.jpg
Whetever is there I have.
Genesis
Sonic the Hedgehog
Sonic 2
Sonic 3
Sonic & Knuckles
Sonic Spinball
Game Gear
Sonic Drift 2
Sonic Chaos
Game Cube
Sonic Mega Collection
Sonic Gems Collection
That's it.
I only physically own Sonic CD for the PC.
Best stand-alone in the series.
I only have the one for the first sega genesis.
man, i haven't played that in years!
genisis:
sonic the hedgehog
sonic the hedgehog 2
sonic the hedgehog 3
sonic and knuckles
sonic 3d blast
Dr. robotniks mean bean machine
GBA:
sonic advance 1
sonic advance 2
sonic advance 3
sonic battle
Gamecube:
sonic adventure battle 2
sonic mega colection
PS2:
sonic heros
I have them all including the failed Sonic X-treme
Gensis:
Sonic the hegdehog(1,2,3)
Sonic 3 and Knuchels
Sonic and Knuchels
Sonic 3D Blast
Sonic SpinBall
GBA:
Sonic A1,A2,A3.
Sonic Pinball
Sonic Battle
PC:
Sonic Adventure DX
Sonic Heroes
Genesis
Sonic the Hedgehog
Sonic 2
Sonic&Knuckles
Game Gear
Sonic Chaos
Gamecube
Sonic Adventure DX
Sonic Adventure 2 Battle
Sonic Heroes
Sonic Mega Collection
Sonic Gems Collection
PS2
Shadow the Hedgehog (I did not ask for this I assure you)
GBA
Sonic Advance 2
Playstation 2
Sonic Heroes
Gamecube
Sonic Mega Collection
Sonic Adventure 2: Battle
Gameboy Advance
Sonic Advance
Genesis:
Sonic the Hedgehog
Sonic the Hedgehog 2
Sonic the Hedgehog 3
Sonic & Knuckles
Gamecube:
Sonic Adventure 2: Battle
Sonic Adventure DX: Director's Cut
SoNiC hErOeZ (it's crap; still haven't returned it yet)
Sonic Mega Collection
Sonic Gems Collection
GBA:
Sonic Advance 1 & 2
I really prefer the sidescrolling Sonic games, so I mainly stick to playing Sonic Mega/Gems Collection and the Sonic Advance games. Although I do also enjoy games like SA2: B and Sonic the Fighters, as well. Although I play the latter mainly because Fang is in it, but still.
Genesis
*Sonic the Hedgehog 1&2
*Sonic Pinball
GameCube
*Sonic Adventure 2: Battle
*Sonic Heroes
*Shadow the Hedgehog
PC
*Sonic CD