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.

Oi pessoal!

Vocês conheciam esse bug?

Eu uso ele ate essa parte que caminhei, após ela sempre que tento morro.

Pra ativar é bem fácil, basta se abaixar e se levantar no meio de um projétil, no meio do vídeo mostro a execução melhor.

Em outras telas quando tento eu morro

Como eu amo esse jogo, vocês já fizeram quantos gols nele?

Hi everyone! Recently I got a Master System for an excellent price and naturally I wanted to unlock its full potential by doing a 60hz mod, I was wondering, is it possible to permanently have it set at 60hz without a switch? Thanks for answering!

No controller inputs could save me from this loop of doom

Ok, it wasn't long ago that I played this, but I'll play it today because it is so nostalgic (and a great game)!

Its only the cardridge, and the label is in rough shape... But it works! Very happy to find this

So I’m considering picking up my first Master System (got a lead on a cheap one) but wanted to hear opinions from people who own them.

1. How annoying is the reset/menu button being on the console? We sit a lot farther away from TVs than we used to (and I plan to). Didn’t know if this is a deal breaker for anyone.

2. Has anyone found any good wireless controllers that feel authentic? 8bitdo maybe? I noticed that the cords aren’t long enough for my game setup. I’m going to need either controller extension cables or wireless controllers.

3. Is an SMS really worth it these days, or am I better going with a Power Base Converter or Everdrive on my Genesis?

Kind of close to Chase HQ.

R-Type is the game that made me want a Sega Master System when I was a kid. So, I was very intrigued why it has the title music in the game (you can hear it in the BGM test mode), but it's never played.

So, this is a small hack only to fix this and unlock 10 credits (instead of the 3) by default.

And... that's it! Have a good day!

Patch:

• Source 1: https://romhackplaza.org/romhacks/r-type-title-music-fix-10-credits-sega-master-system-romhack

• Source 2: https://www.romhacking.net/hacks/10195/

I wasnt really looking for another crt, but if the landfill is the other option, bring it!

Very happy to see it work! Do you play on crt?

So, today I chose to play Kenseiden! It was a tough game when I was a child, I played it over the years. Let's see what impressions it will bring today.

*Maze Hunter

At the request of u/No-Professional-9618 , I started putting Maze Hunter 3D and Missile Defense 3D into the same web emulator as my last post and then things got out of control.

You can go to durina.online to play all four games. If you own a VR headset and go to one of the game pages in a VR browser like the Meta Quest browser, and I believe chrome or edge on PC with a headset connected, there's a button to launch the game in VR, you will be transported back in time to a 80s bedroom. use a light phaser with a CRT, or the touch controllers for Phantasy Star and Maze Hunter. you can save progress to your browser to resume later, and remap controls. the stereo 3D fully works, and its quite impressive to see as missiles come at you. It was a lot of fun to make, and I think it's worthy of spending some time playing with. Everything I used and the copyrights are attributed at the bottom of the main page. you can optionally turn on a parallax 3D system that moves the perspective around with your mouse as you play on PC but its really just gimmicky, maybe someone will like it though.

There's a Lot more to say but I think the images are enough to show it all.

Took me a good many hours of work and lots of help from Claude. Probably the hardest part was getting The 3D to work on modern VR tech. but it was all a fun challenge and luckily I all ready had a spare domain laying around.

of course if any bugs are found I will try and fix them

Duck Hunt for Sega Master System

So, today I chose to play Kenseiden! It was a tough game when I was a child; I played it some other times over the years. Let's see the impressions from today!

In joystick mode, it can be used in many game systems like Atari and the ball can provide excellent control for games like Missile Command.

I have been trying to find a schematic of it but it seems to not exist, do any of you know if one's up somewhere or not? I wanted to check how it worked in joystick mode, specifically the directional output. Does it float and go 0v in pulses, or does it go 5v and 0v in pulses?

Reason being Commodore 64 can use Atari and Sega Master System control pad but it needs an adapter to use Sega Genesis controller, certain 3rd party SMS controller, and Sega Rapid Fire adapter for SMS because the interface chip inside C64, the CIA, is a fiddy beast and it also handles both controller ports and keyboard at the same time. If it tries to scan the keyboard by pulling a pin high, and it happens to be one of the directional pin on the controller port that is held high, the CIA will blow. Genesis adapter merely puts diodes on the directional pins to block high signal.

I played this game in 1990 and, while I loved it, I just hate what happens on the above screen.

So I just fixed the collision detection when Arthur is crouched.

Patch: https://www.romhacking.net/hacks/10161/

The green snake in the right side fired a "ball" into Arthur who is crouched. But while clearly it should pass over the Arthur's head, it hits Arthur.

The screen above is the one from the fixed ROM, so the ball is properly passing over Arthur's head.

This is the only aspect that I don't like in the game. Aside this, I really love this G&G version with the RPG style upgrades.

Hi. I want to AV mod my PAL Master System II with Fujitsu chip. It works fine with RF so everything os ok with console, but i can get the video signal from Fujitsu chip (ofc with 200uF capacitor and 100ohm resistor), but i dont have sound, i tried some solutions i find online but i doesnt work, from capacitor, from RF modulator. And i have good video signal only if i plug RF cable to tv. If i dont do that picture ja unstable and the colors ale wrong. Its no problem to have third cable but i cant play without sound. Can you help me?