System:
Sega Mega Drive/Sega Genesis
Generation:
Fourth
Release Date:
(JP) October 29, 1988 (with the name Mega Drive)
(NA) August 14, 1989 (with the name Genesis)
(EU) November 30, 1990 (with the name Mega Drive)
Sonic Game List:
Sonic the Hedgehog
Sonic the Hedgehog 2
Sonic The Hedgehog Spinball
Sonic the Hedgehog 3
Sonic & Knuckles
Sonic 3D Blast
Sonic Classics
Dr. Robotnik's Mean Bean Machine
System:
Mega-CD/ Sega CD
Generation:
Fourth Add-On
Release Date:
(JP) December 12, 1991
(NA) October 15, 1992
(EU) April 1993
Sonic Game List:
Sonic The Hedgehog CD
System:
Sega 32X
Generation:
Fourth Add-On
Release Date:
(NA) November 1994 (with the name Sega Genesis 32X)
(JP) December 3, 1994 (with the name Sega Super 32X)
(EU) January 1995 (with the name Sega Mega Drive 32X)
Sonic Game List:
Knuckles' Chaotix
System:
Sega Game Gear
Generation:
Fourth
Release Date:
(JP) October 6, 1990
(NA) 1991
(EU) 1991
Sonic Game List:
Sonic Drift
Sonic Labyrinth
Sonic Spinball
Sonic The Hedgehog
Sonic The Hedgehog 2
Tails Adventure
Tails' Skypatrol
Sonic Blast/G Sonic
Sonic Chaos/Sonic & Tails
Sonic Drift 2
Sonic Triple Trouble/Sonic & Tails 2
System:
Sega Pico
Generation:
Fourth
Release Date:
1993
Sonic Game List:
Sonic The Hedgehog's Gameworld
Tails and the Music Maker