Sonic the Hedgehog (Game Gear prototype)

From Sonic Retro


Sonic 1 GGP Title.png
Sonic the Hedgehog
Publisher: Sega
System(s): Sega Game Gear
ROM size: 256 KB
Genre: Action


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The Sonic the Hedgehog Game Gear prototype is a one level demo version of Sonic the Hedgehog for the Sega Game Gear. It was compiled to demonstrate the Game Gear port to the gaming press.


Known Differences

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  • There is no Sega Logo in the beginning.
  • Sonic is placed further right at level startup.
  • Sonic's palette changes to a darker blue when passing the end level sign.
  • A strange strip appears at the top of the level briefly, probably a glitch as touching it does nothing.
  • There are 2 invincibility stars in the prototype. The final Game Gear version has 4 stars.
  • Sonic's sprites are exactly close to the ones from the Master System version.
  • The map layout is slightly different than any version.
  • The "GAME OVER" screen is garbled.
  • The mountain range has a different hue, which resembles more to the hue from the Master System version.


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File: Sonic The Hedgehog (GG Proto).rar (137 kB) (info)