In what year did the first Sonic the Hedgehog game come out?
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991
1991 for Sega Mega Drive/Genesis
1991, Sega Mega Drive/Genesis
Sega Mega Drive/Genesis
1991 for Sega Mega Drive/Genesis
1991 (Sonic the Hedgehog)
1991, Sega Master System, Sega Master System
1991 for Sega Mega Drive/Genesis
Sega Mega Drive/Genesis
Sega Mega Drive & Sega CD
1991 for Sega Mega Drive/Mega Drive
1991 for Sega Mega Drive/Sega CD
1991 (Sonic the Hedgehog)
Sega Mega Drive and Sega CD
1991 Sega Mega Drive/Genesis
1991, Sega Master System, Sega Mega Drive
1991 for the Sega Mega Drive/Sega CD
1991, Sega Mega Drive/Sega CD
Sega Mega Drive/Mega Drive
1991, Sega Master System, Sega Master System
1991 (Second)
Sega Mega Drive & Sega Master System
Sega Mega Drive/Genesis 2
1991 (Nearly 21st century)
Sega Mega Drive/Genesis
Sega Mega Drive/Genesis 64
1991, Sega Master System, Sega Genesis
1991 (Sonic the Hedgehog)
1991 for Sega Mega Drive/Mega CD
Sega Mega Drive/Sega CD
1991, Sega Mega Drive/Genesis
1991 (Sonic 1: Sonic the Hedgehog
1991 (Second)
Sega Mega Drive and Sega CD
1991 for Sega Mega Drive/Gearbox
1991 for Sega Mega Drive/Genesis
Sega Mega Drive & Sega CD
Sega Mega Drive/Genesis 1
Sega Mega Drive/Genesis 2600
Sega Mega Drive & Sega Genesis
1991 for the Sega Mega Drive/Gearbox
1991 for Sega Mega Drive/ Mega Drive
1992
1991, Sega Master System, Sega Mega Drive
Sega Mega Drive/Genesis 3000
1991 Sega Mega Drive/Genesis
Sega Mega Drive/Mega CD
Sega Mega Drive/Gearbox 64
Sega Mega Drive and Sega Genesis
Sega Mega Drive/Genesis 32
Sega Mega Drive & Sega Master System
1991 for Sega Mega Drive/Sega CD
Sega Mega Drive/Mega Drive
1991 (Second Edition)
Sega Mega Drive and Sega Master System
1991 (Sonic 1 & 2)
1991 (Sonic the Hedgehog)
1991, Sega Master System
1992
Sega Mega Drive/Genesis 2
1991 (Nearly 21st century)
Sega Mega Drive/Gearbox
1991 (Second)
1991 (Sonic 1: Sonic the Hedgehog
Sega Mega Drive/Genesis CD
1991 for the Sega Mega Drive/Sega CD
1991, Sega Master System, Sega Genesis
1991 for Sega Master System
Sega Mega Drive and Sega CD
1991 (Nearly 20th century)
1991 (Sonic 1 & 2)
1991 for the Sega Master System
1991 (Neighborhood of Metropolis)
1992
1991 (Non-Joint)
1991 for the Sega Genesis
1991 Sega Mega Drive/Genesis
1991 Sega Mega Drive/Genesis 2
Sega Mega Drive/Genesis 64
Sega Mega Drive/Mega Drive 64
Sega Mega Drive and Sega Genesis
1991 (Sonic the Hedgehog).
1991 (Sonic the Hedgehog); Sega
Sega Mega Drive/Sega CD
Sega Mega Drive & Sega Genesis
1991 (Sonic the Hedgehog 2)
1991 (Second Edition)
1991 for the Sega Mega Drive/GX
1991 - Sega Master System
Sega Mega Drive and Sega Master System
1991 – Sega Master System
Sega Mega Drive/Genesis 1
Sega Mega Drive/Gearbox 64
1991 (Sonic 1 & 2)
1991 (Sonic the Hedgehog)
Sega Mega Drive/GX1
Sega Genesis/Mega Drive
1991 (Sonic's 1st)
1991 for the Sega Mega Drive/ Genesis
1991 (Second)
1991 (Neighborhood of the Future)
1992
1991 (Sonic 1: Sonic the Hedgehog
Sega Mega Drive/Gearbox
1991 (Neighborhood of Edgewater)
1991 (Sonic the Hedgehog 1)
Sega Mega Drive/Greyhound
1991 for the Sega Mega Drive
1991 (Nearly 21st century)
Sega Mega Drive/Genesis 32
Sega Mega Drive & Sega Master System
Sega Mega Drive/Mega CD
1991 (Sonic 1 & 2)
1991 for the Sega Mega Drive/Sega CD
1991, Sega Master System
1991 (Sonic the Hedgehog
1991 for the Sega Mega Drive/Gearbox
1991 for the Sega Mega Drive/GX1
Sega Mega Drive/Genesis 2
1992
Sega Mega Drive/Genesis CD
Sega Mega Drive and Sega Genesis
Sega Mega Drive/Greyhound 64
1991 Sega Mega Drive/Genesis 64
1991 (Sonic the Hedgehog).
1991 (Neighborhood of the Edge)
1991 (Sonic the Hedgehog),
Sega Mega Drive & Sega CD
1991 (Second Edition)
1991 (Sonic the Hedgehog 2)
1991 for Sega Master System
1991 for the Sega Mega Drive and Sega CD
1991 (Nearly 21st Century)
Sega Mega Drive/Mega Drive
1991 Sega Mega Drive/Sega CD
1991 Sega Mega Drive/Genesis 1
1991 (Sonic 1 & 2)
1991 (Sonic the Hedgehog);
1991 (Second)
1991 (Sonic the Hedgehog)
Sega Mega Drive/GX1
Sega Mega Drive/ Mega Drive
Sega Genesis/Mega Drive
1991 (Nearly 20th Century)
Sega Mega Drive/Genesis 1
Sega Mega Drive/Gearbox 64
1991 (Non-Joyce)
1991 (Sonic 1: Sonic the Hedgehog
1991 (Nearly 21st century).
1991 (Neighborhood of Metropolis)
1992
Sega Mega Drive/Genesis 64
1991 (Nearly 20th century)
Sega Mega Drive/Gearbox 2
1991 Sega Mega Drive/Mega Drive
1991 (Sonic the Hedgehog )
1991 (Sonic the Hedgehog); Sega
1991 (Sonic 1 & 2)
Sega Mega Drive/Gearbox
1991 for Sega Mega Drive/ Genesis
1991 (Neighborhood of Sega)
1991 (Non-Joint)
1991 Sega Mega Drive/Genesis CD
Sega Mega Drive & Sega Genesis
1991 (Sonic the Hedgehog
1991 for Sega Mega Drive
1991 for the Sega Mega Drive/SNES
1991, Sega SG-1000
1991 for Sega Genesis
1991 (Neighborhood of the Future)
1991 (Sonic the Hedgehog).
1991 for the Sega Mega Drive/Gearbox
1991, Sega Mega Drive
1991 (Sonic the Hedgehog),
1991 Sega Mega Drive and Sega CD
1991 for the Sega Mega Drive/Mega Drive
1992
1991-July-July-90
1991 for the Sega Mega Drive/GX1
1991 (Second Edition)
Sega Mega Drive/Sega CD