Game Gear on SMS/Genesis
Game Gear cartridges can not be played on either the Sega Master System or the Sega Genesis, since the Game Gear has the ability to produce more colors than either system can handle. As a result, any kind of “Super Game Boy” type of converter is impossible, but software patches are being created that allow this to happen.
As an FYI, many Game Gear games are simply direct-ports of Master System games, so playing those would be a better big-screen experience. Here’s a list of all the GG-Exclusive games, if you’re interested: http://www.retrorgb.com/gamegeargames.html
Patching Game Gear Roms
Some awesome developers have created patches that convert Game Gear roms to Master System. These roms can be played via emulator or Rom Cart. Each patch is applied by doing the following:
– Download the corresponding Game Gear ROM and rename it from “.gg” to “.sms”
– Download the patch the developer created: http://www.smspower.org/Hacks/GameGearToMasterSystem
– Use Lunar IPS to apply the patches to your rom.
There are sometimes disadvantages, such as palette issues, screen artifacts, or glitches, but if you already own a rom cart (or can flash your own cartridges), it’s an excellent way to experience those games on a big screen!
The biggest advantage of patching Game Gear games for use on an SMS/Genesis is that they can fill much more of the screen. They don’t always output the full 256×192 resolution that the SMS is capable of displaying, but they do fill much more of the screen than a Game Gear modded for RGB by ‘reframing’ the game’s perspective to display a wider area (click for full-sized pic):
There is currently a thread on the SMSPower Forums dedicated to the creation of these patches. I suggest anyone who’s interested check it out and hopefully be able to contribute: http://www.smspower.org/forums/viewtopic.php?p=79131
Also, please visit Chris Covell’s site for more information and technical details of what’s required: http://www.chrismcovell.com/segahacking/gg2sms.html
Game Gear on Genesis:
I had always hoped developers would push the conversions a step further and patch GG games for use on the Genesis (instead of the SMS) to utilize the Start button and stereo sound could be utilized. Although a bit ridiculous, it might also be possible to directly patch Game Gear games to 32x roms to utilize the extra colors the 32x supported.
Please head back to the main Game Gear page for more information.