How to load Master System / Game Gear / SG-1000

Freeware on SNES (Recommended):


We must buy "AD Adapter(White version)".  It can load sms files from micro SD card.
This unit originally seems to use "Dr.SMS" that was coded by Reesy () in 2003-2005.
Only we have to do is simply copy sms file on micro SD card, however, some freeware are not compatible with Dr.SMS .
Next we should use another emulator, "SMSAdavance" that was coded by Fredrik Olsson () in 2005-2009.
1. Download SMSAdvance from other websites. ( e.g. pdroms.de)
2. Doubleclick SMSAdvance and add sms files that were incompatible with Dr.SMS.

3. Click "Save" button. "SMS.GBA" would be created.
4. Open this "SMS.GBA" using binary editor.  See line #B0 and columns #00 & #01.  This 2 bytes were "00 00". Make it "30 30".

5. Copy "SMS.GBA" to your own micro SD card and insert your AD adapter (white version).
6. Turn your SNES console on. Choose "SMS.GBA". The game would be loaded automatically.
7. You can select another game you've added by pressing both L button and R button (then choose "Restart").

Compatibility list is shown below.

I've defined "loading difficulty" on SNES+AD Adapter(White version) like following:
Difficulty
 Definition
Lv.2
 Almost "sms" / "gg" / "sg" files.


How to load Master System / Game Gear / SG-1000

Freeware on CD32+FDD:


We can use "AmiMasterGear" coded by Juan Antonio Gomez () in 1997-2002. This program is now freeware.
Download it from aminet.net first, then transfer and extract to RAM: .
Copy "AmiMasterGear", "Libs/Stc.library" and s/AmiMasterGear.Key to a blank ffs formatted diskette.
Add c/loadwb , Libs/asl.library and  s/startup-sequence to that diskette.
Finally create a folder named "cartridges" , and copy sms file(s) to that folder.

Insert that AmiMasterGear disk, then turn your CD32 on.
NTSC CD32 users must boot by PAL mode, otherwise it'd crash.

First, you choose "NTSC (60Hz)" if your CD32 is NTSC version.
Change both "GFX Refresh" & "SPR Refresh" to "4 Frame".
Choose "Standard Joypad" clicking Joy-Control tab.
( It is because Sega's 6 button pad is recommended. )
Then click "Insert" and choose the game file from df0:cartridge.
Finally hold right button of mouse on the tool bar to choose "Save Prefs".
A file named "AmiMasterGear.prefs" would be saved in df0:s .
You don't have to choose each settings & path every booting any more.

Now click "Power ON" button.
The game would be loaded soon!

Cons of AmiMasterGear:

#1: Some titles are incompatible. It would crash immediately or cause graphical glitches.
   e.g. "Bread and Butter", "Sega Tween 3D", "SMS FMV Demonstration", ...etc. See below.

#2: Some titles would be very sluggish ( less than 20FPS ) if your system is 020 CPU (14Mhz) + 1.8MB chip RAM
      even if we make each refresh "4 Frame".
   e.g. "Bad Apple!! PV", "Dead Gunner", "Gekioko Punpun Maru", "Lost Raider", ...etc.

#3: AmiMasterGear reads only "multiples of 32KB( =32768Byte )" sized files.
   e.g. We must change 48KB file to 64KB( =65536Byte ) file by adding "00" bytes using binary editor.

   e.g. "Monkey Lad" is originally 144KB. 144/32=4.5  So the size that we should make is:
         32x5=160KB=160x1024=163840Byte

 I've defined "loading difficulty" on CD32 + FDD like following:
Difficulty 
 Definition & comments
Lv.3
 • 32KB ~ 576KB sized files. It can be placed in the same diskette with AmiMasterGear.
• 608KB ~ 864KB sized files. It must be copied to the second diskette.
  After it shows "Insert MS/GG Cartridge file." window, swap AmiMasterGear's disk for the second diskette.
  Type df0: in "drawer" box. Choose the 2nd disk and a file inside.
  Swap the second diskette for AmiMasterGear's disk before you click "Power ON" button.
Lv.4
 896KB ~ 1024KB sized files. You must copy it to a blank Amiga CD or CD32 formatted CD.
Lv.5
 Much bigger sized files. It causes RAM shortage even if you copy it to Amiga CD / CD32 formatted CD.
It also requires Fast RAM. To add Fast RAM, you have to buy more expensive accelerator.
However, I can't classified games that are incompatible with AmiMasterGear.

Examples:

**Compatibility LIST**  Here are games I've tested once. Sorry, if you want to know about other titles, test by yourself.
Title
 Year  

AD Adapter (Dr.SMS)
 SMSAdvance
 AmiMasterGear
 Size
2048
 2014
 game
 Yes.
 Yes.
 Yes.
 32KB
3D Alien Maze
 2021
 game
 Can't load the level.
 Yes.
 Yes.
 48KB
Astro Force
 2017
 game
 Opening demo loops.
 Can't load at all.
 Yes.
 224KB
Astroswab
 2018
 game
 Yes.
 Yes.
 Yes.
 256KB
Bad Apple!! PV
 2012
 demo
 Yes.
 Totally glitched.
 Yes.
 458KB
Bad Apple 3D full length for SMS
 2017
 demo
 Totally glitched.
 It crashes after several seconds.
 Totally glitched.
 4040KB
Bad Apple for SMS
 2017
 demo
 It crashes after the title screen.
 Can't show even the title screen.
 It crashes after the title screen.
 4096KB
Bara Burū
 2016
 game
 Can't load the level.
 Yes.
 Yes.
 128KB
Black Sea
 2022
 game
 Can't load at all.
 Yes.
 Can't load at all.
 64KB
Blast Arena
 2023
 game
 Yes.
 Yes.
 Fatal graphical glitch.
 64KB
Bread and Butter
 2013
 game
 Yes.
 Yes.
 Totally glitched.
 48KB
Bruce Lee
 2015
 game
 Can't load the level.
 Yes.
 Yes.
 128KB
Cimmerian
 2016
 game
 Characters are invisible.
 Yes.
 Characters are invisible.
 768KB
Crazy Pinball
 2024
 game
 Yes.
 Yes.
 Fatal issues.
 256KB
DARC (WIP)
 2012
 game
 Player's bullets are invisible.
 Yes.
 Yes.
 512KB
Dead Gunner: Demo version
 2020
 game
 Can't load at all.
 Can't show even the title screen.
 Yes.
 96KB
Electronic Dreams
 2023
 game
 Yes.
 Totally glitched.
 It crashes.
 448KB
Fairy Forest
 2017
 game
 Glitched. The game hangs up.
 Glitched. The game hangs up.
 Totally glitched.
 48KB
Flight of Pigarus
 2019
 game
 Can't load the level.
 Yes.
 Yes (Boss has glitch colors.)
 256KB
Galactic Revenge
 2018
 game
 Can't load at all.
 Yes.
 Yes.
 128KB
Gekioko Punpun Maru
 2013
 game
 Yes.
 Can't load at all.
 Yes.
 256KB
GG Hicolor Demo (Game Gear)
 2005
 demo
 Tiles are glitched.
 Tiles are glitched.
 Tiles are glitched.
 128KB
Gravity Beam Master Gaiden
 2013
 game
 Yes.
 Yes.
 Yes.
 32KB
Ice Force
 2021
 game
 Yes.(It partly glitches.)
 Yes.
 Yes.
 64KB
Jet Paco & Jet Puri (SG-1000)
 2019
 game
 Can't show screens.
 Yes.
 Can't show screens.
 48KB
KunKun & KokoKun
 2006
 game
 Yes.
 Yes.
 Can't pull the lever.
 32KB
KunKun & KokoKun 2
 2011
 game
 Yes.
 Yes.
 Yes.
 64KB
Lander 2
 2015
 game
 Yes.
 Yes.
 Yes.
 48KB
Lost Raider (WIP)
 2012
 game
 Yes.
 Yes.
 Yes.
 128KB
Mai Nurse
 2024
 game
 Fatal graphical glitch.
 Yes.
 Yes.
 128KB
Mecha-8 Demo
 2017
 game
 Yes.(Sluggish & glitches.)
 Yes.
 Yes.
 128KB
Mini MSX
 2021
 game
 Can't load at all.
 Yes.
 Yes.
 128KB
Porkpolis
 2014
 game
 Tiles are glitched.
 Yes.
 Tiles are glitched.
 128KB
Sega Tween 3D
 2007
 demo
 Can't show half of the screen.
 Yes.
 Can't show half of the screen.
 32KB
Silver Valley
 2017
 game
 Can't load at all.
 Yes.
 Yes.
 256KB
Skazka
 2022
 game
 Can't start the game itself.
 Yes.
 Yes.
 256KB
SMS 3-D Demo
 2005
 demo
 Yes.
 Yes.
 Yes.
 256KB
SMS FMV Demonstration
 2013
 demo
 Yes.
 Certain scene loops.
 Certain scene loops.
 1024KB
Stygian Quest
 2024
 game
 Yes.
 Totally glitched.
 Can't read the tablet.
 560KB
Sushi Nights
 2024
 game
 It crashes.
 Yes.
 It crashes after the logo screen.
 128KB
Sutoroku
 2022
 game
 Can't pass the title screen.
 Yes.
 Yes.
 48KB
Swabby (Game Gear)
 2016
 game
 Yes.
 Yes.
 Yes.
 128KB
Weka Invaders
 2017
 game
 Yes.(A cursor disappears.)
 Can't load at all.
 Yes.
 288KB
Wing Warriors
 2016
 game  
Yes.(A minor issue.)
 Yes.
 Yes.(It becomes easier.)
 128KB

Where to download them from?
/ How to know new games released for SMS/GG/SG-1000 recently?


"SMS Power!", one of the biggest community for Sega Master System stuff, archives them.
Visit and click "Homebrew" links.
You can see screenshots, download link(s) and a forum per 1 homebrew game.
(External Link)


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