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The inhabitants of South Island are in danger! Dr. Robotnik has stolen all the Chaos Emeralds which kept the power balance. Robotnik has thrown the Emeralds in a parallel universe and is keeping the red one. Sonic and Tails must retreive all the Chaos Emeralds before the destruction of South Island. This is the first Game Gear game where you can play either Sonic or Tails.


Sonic the Hedgehog Chaos Game Gear Stage completed
Sonic the Hedgehog Chaos Game Gear Select your character
Sonic the Hedgehog Chaos Game Gear Sonic Chaos Title
Sonic the Hedgehog Chaos Game Gear Rocket ride

Promo Images

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Alternate Titles

  • "Sonic & Tails" -- Japanese title
  • "Sonic Chaos" -- Common title
  • "ソニック&テイルス" -- Japanese spelling

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User Reviews

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Critic Reviews

Power Sonic Jan 10, 2014 9.25 out of 10 92
Entertainment Weekly Feb 11, 1994 A- 91
Sega Force Jan, 1994 90 out of 100 90
GamePro (US) Nov, 1993 4.5 out of 5 90
Defunct Games Apr 16, 2006 87 out of 100 87
Game Players Nov, 1993 84 out of 100 84
The Video Game Critic Oct 08, 2003 B+ 83
Electronic Gaming Monthly (EGM) Jan, 1994 8.25 out of 10 82
Mega Fun Nov, 1993 71 out of 100 71 Dec 20, 2011 13 out of 20 65


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In the US version of the game, the Gigalopolis Zone was changed to the Gigapolis Zone. This could be due to the fact that dimmer children might read the name as "Gigolopolis." It's odd that the same people who'd be so anal about such a comparatively innocent association could also be the same louts who allowed Phantasy Star III's villain to be translated as "Dark Phallus."
Junryeong (32) added Sonic the Hedgehog Chaos (Game Gear) on Sep 13, 2003
Other platforms contributed by Junryeong (32) and gamewarrior (5060)