Sonic Adventure Game Gear ROMS

Discussion in 'Discussion and Q&A Archive' started by SuperEgg, Mar 30, 2012.

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  1. SuperEgg

    SuperEgg I'm a guy that knows that you know that I know Member

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    So, I got bored earlier tonight, and instead of doing my homework, I decided to see all the files in SADX and see if I could find the GameGear ROMS. Seems I did find them, but they are in .prs form. The name of the files go as followed


    G-Sonic.prs


    LABYLIN.prs


    MBMachin.prs


    S-Drift2.prs


    S-Drift.prs


    skyPat.PRS


    Sonic.prs


    Sonic_TT.prs


    Sonic2.prs


    Sonic-CH.prs


    SonicDri.prs


    SonicTai.prs


    Spinball.prs


    S-Tails2.prs


    TailsADV.prs


    And to answer your questions, I did test it. Switched the Sonic 2 and Sonic 1 name around, sonic 2 was saved as Sonic.prs, and vice versa. I opened up SADX, selected to play Sonic 1, and it sets me up with Sonic 2. So, I guess now is the time to figure how to convert them into a .gg format....
     
    Last edited by a moderator: Mar 30, 2012
    SuperEgg, Mar 30, 2012
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  2. FinkMac

    FinkMac Swëdish Chef Member

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    I'm guessing you already tried the obvious… Renaming them and seeing if they run in an SMS emulator…
     
    FinkMac, Mar 30, 2012
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  3. vladikcomper

    vladikcomper Well-Known Member Member

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    Just compared them to original GG ROMs. Data seems original -- nothing was changed or converted, but everything is compressed by some algorithm.


    Also, why to convert them, if you can freely download GG Roms of these games? =P
     
    Last edited by a moderator: Mar 30, 2012
    vladikcomper, Mar 30, 2012
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  4. MainMemory

    MainMemory Well-Known Member Member

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    With the PRS Decompressor and PRS Compressor on this page, you can decompress the ROMs to play them in a GG emu or replace them with other ROMs. The S1 ROM is just an ordinary S1 ROM, and I assume the others are too.
     
    MainMemory, Mar 30, 2012
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  5. SuperEgg

    SuperEgg I'm a guy that knows that you know that I know Member

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    they are, I assume anyway. So the next question is, where is the emulator? Is it in the actual exe itself? Could it be possible to instead exchange it for a Genesis emulator?
     
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    SuperEgg, Mar 30, 2012
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  6. MainMemory

    MainMemory Well-Known Member Member

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    Yeah it's built into the EXE. Replacing the emulator code would be possible (anything's possible), but extremely difficult (I don't even know where it is) and mostly pointless (standalone emulators are much more convenient).
     
    MainMemory, Mar 30, 2012
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