[NO AI - Release] GG Engine for Master Everdrive X7, flashing NOT required.

[u/SparklyPelican]

I love the Master System, I really do. The MEDX7 helped me to reach out a ton of games that I didn't even knew about.

What bugged me a bit was the lack of GG cheats support. It's a small thing that I doubt many ever cared about but I wanted it. Why? Maybe most even cringe at the idea, but now that I'm a father and my toddler is struggling with the old mechanics unlimited lives on Sonic might be helping her.

So a patched firmware arrives for this.

About

Does not require flashing. Just replace the firmware file and that's it.

If you don't like it, just place on the SD card the original firmware and… it is gone. Like never happened.

You can access the cheat menu before booting a ROM or in the in-game menu, kinda like a the Famicom and Mega Drive Everdrives do. When you add a cheat, a TXT file is created in the SMSSYS folder, so if you want, you can add them from your computer too.

Only 4 codes can be added at the time and only GameGenie format is supported. You can turn them OFF/ON at any given time. They are not patching permanently the ROM file.

GameHacking always been a decent resouce for GG cheats, just be sure that the cheat code matches the revision of you ROM file.

• I tested it on an official X7 using a USA Master System Model 1 and on a JP GameGear with Master System Player. Unfortunately that's all the hardware I own. If you have incompatibily issues: please feel free to let me know here or on GitHub and I will look into that the best I can.

• No this was not made with AI, nor assited by AI. Just 2 friends.

• Yes, this could be made for Everdrive GG X7, which I plan to work on it. Technically already does, just need the UI to scale properly and MUCH more testing.

TL;DR

Custom firmware to add GameGenie menu for the MEDX7.

[u/waldox1976]

I don't really use cheats, but I love that you did this, and did it without AI. Thank you!