🕹 RetroReversing - Reverse Retro Games 🕹

New Post: Covering everything we know so far about the Official & Unofficial SNES (Super Famicom) Software Development Kit (SDK) retroreversing.com/super-famicom-… #retroreversing #snes #sdk #gamedev #SuperNintendo #programming if you have any additional info please get in touch

You can just add a CRT shader to your software.

Happy Friday! We're thrilled to announce the full run of Marukatsu PC Engine is now available to download/view. We believe we have now scanned every Japanese PC Engine focused magazine completely. Enjoy and please spread the word by liking/RT'ing. gamingalexandria.com/wp/2025/12/mar…

Babe, wake up, Super Mario 64 on PS1 is now real. The port is being done by a mad genius Malucart who's been working on it for a while. A lot of the things are still WIP and a bit broken (good for creepypasta material though!), but overall it's an incredible work!

The Duke Nukem Zero Hour decompilation just reached 100% status

Hello everyone! I have a major announcement regarding my ports to the Super Nintendo. As of 10-12-2025, I've went back and updated ALL 16 of my ports so that 3rd party controllers can function properly with them. I figured out the Krusty Krab secret formula, to getting all 3rd party controllers working with my ports, including @RandalLinden's rumble controller. Thank you for confirming, Randy! For those that don't know the in's and out's of the hardware, the SNES uses the same joypad registers from the NES ($4016/$4017). And since I do 1:1 ports, those registers are brought over. OEM controllers have no issue, but for some reason 3rd party controllers DO have an issue. I'm not a hardware guy, just software/coding. So I wanted to try to convert NES $4016/$4017 to what the SNES uses for A/B/Select/Start/Up/Down/Left/Right, which is $4219/$421B. I've always known that these bits represent the buttons on an NES controller 80 = A 40 = B 20 = Select 10 = Start 08 = Up 04 = Down 02 = Left 01 = Right SNES does the same thing within $4219/$421B. Now, over decades of rom hacking and as of late, porting, I've always assumed that $4016/$4017 produce those bits when the buttons are pressed, since I see them appear in the NES ram. But it's not the case. Quick lesson on the NES controllers. The NES reads against $4016/$4017 8 times, since there are 8 buttons. Once you initiate $4016 with 01 then 00, you can now read against $4016 in the bit order of 80,40,20,10,08,04,02,01/A,B,Select,Start,Up,Down,Left,Right So what I discovered, by holding down A since that is the first button detected in $4016, it didn't produce an 80, it produced a 01. I didn't know that when a button, or multiple buttons are pressed/held, that when they're called upon they're represented by a 01. So now I understood how $4016/$4017 really worked, and I tested this within my TMNT SNES port. I removed just the reads of $4016/$4017, and replaced them with $4219/$421B. Now, right after they are read, I have what is loaded into A, then I AND against an AND table to see if it matches. Meaning, if B on the SNES controller is held *which is 80* I take that value and AND against a bit table i have stored in ROM, so if 80 is still present in A after the AND operation, I then change that value in A from 80 to 01, and resume the games normal asm. And in doing that, I was able to now only have the SNES control registers work in the NES games asm now ported over! So, as of 10-12-2025, I've redone ALL 16 ports that i've released since 2021! All of them I've personally confirmed to work on Randy Linden's rumble controller, and i've had confirmation from others with 3rd party controllers, that what i've done works! Also, I've went back to my earlier MSU-1 OST selection menus in my ports, and fixed the order in which my cover art should flow when pressing left/right on the d-pad. They all flow in the same direction you get within Super Mario All-Stars. I strongly suggest to everyone that has my ports since 2021, to update all of them when you can. I've already created a new pinned topic on my page, which will take you directly to my archive page. But as a thank you for making it this far into this long explanation, here are direct links to ALL 16 ports as of 10-12-2025. Once again, I'd like to thank all of you here for following me, supporting my work, and spreading the word of what I bring to the community, it is extremely appreciated! Please enjoy my ports now with any controller. 😀 Contra SNES = archive.org/download/contr… DuckTales SNES = archive.org/download/duck-… Mega Man SNES = archive.org/download/mega-… Mega Man II SNES = archive.org/download/mega-… Mega Man III SNES = archive.org/download/mega-… Mega Man IV SNES = archive.org/download/mega-… Mega Man V SNES = archive.org/download/mega-… Mega Man VI SNES = archive.org/download/mega-… Metroid SNES = archive.org/download/metro… Mike Tyson's Punch-Out!! SNES = archive.org/download/mike-… Ninja Gaiden Trilogy SNES = archive.org/download/ninja… Super Mario Bros. Maker = archive.org/download/super… Super Mario Bros. SNES = archive.org/download/super… Teenage Mutant Ninja Turtles SNES = archive.org/download/teena… The Legend of Zelda SNES = archive.org/download/the-l… Zelda II - The Adventure of Link SNES = archive.org/download/zelda… @retrorgb @MyLifeInGaming

We have just published the source code to @AnthonyBall 's Snes cross assembler for the Amiga from the early 90s. deluxepixel.com/tasm

This is an excellent video and yet another reminder of the genius of Datel employees! I would love more information to come out about the inner workings at Datel. The recreation of the ice climbers pak is beautiful too: youtu.be/0cpjhIS6ClI?si…

@deedydas @grok who is Roy and what rules have they rewritten?

There’s a deep malaise in tech right now. —New grads can’t find jobs —BigTech middle managers are trying to justify their existence —Everyone not in AI wants to be in AI —Founders struggling with their startup for years see Roy rewrite the rules —Comp insecurity is at an all time high with the Meta offers (“why am I working so hard?”) Tech, net of AI, is just not as sexy a job it used to be 10yrs ago. Tech, net of AI, is not the sexy job it used to be.

Some kind of Playstation Development setup #playstation #development

Shot from the IS-CGB-Character board

And finally, as a bonus, the fine folks at @_codebound_ released the source code to the NES and Game Boy versions of The Lion King, as well as a few working Game Boy builds spanning multiple months.

SURPRISE SURPRISE! The alpha release of Grand Theft Auto 3 running on the Sega #Dreamcast (DCA3) is here! Here is an actual hardware capture I took from my DC while doing some physics engine optimization work. Over the last several months, a rag-tag team of indie DC developers and GTA fans assembled to take on what seemed to many to be an impossible feat: port GTA3 to the Sega Dreamcast. I will be posting about our journey regularly! #baking-the-cdi" target="_blank" rel="nofollow noopener">gitlab.com/skmp/dca3-game…

A HUGE number of #Sony #PS2 games were released with debug symbols - retroreversing.com/ps2-unstripped/ if you know of any we missed let us know #programming #gamedev #retro

Back in 2020 #Nintendo wasn't the only company to have source code for some of their retro games leaked. #Capcom was hit with by RagnarLeaks if you are curious what was in it - retroreversing.com/capcomleaks #programming #gamedev #leak #megaman #ROM

There was a surprising number of file formats using during the development of #Nintendo #Wii games, if you know of any more that are not covered let us know - retroreversing.com/wii-file-forma… #gamedev #programming #ROM #ISO #retrodev

Ever wondered what hardware was used to create #Nintendo DS games? We have a post on what we know so far retroreversing.com/nintendo-ds-de… #gamedev #programming #ROM #hardware #retro #NDS

A very incomplete post on what was included in the Nintendo "Ninja Leak", named due to it leaking how Nintendo approaches 3DS Hackers. Still so much cool stuff to document - retroreversing.com/ninjaleak #nintendo #programming #leak #switch #3ds #gamedev

There is still much mystery around Official Game Gear Development Hardware but here is what we know so far: retroreversing.com/sega-game-gear… #devkit #gamegear #sega #programming #gamedev #retro

Ever wondered how to create a frontend for libretro? Try our #rust tutorial buff.ly/3Z1IWxe #programming #emudev #retro #gamedev

Ever wondered what hardware was used to create #Nintendo #Wii games? Checkout retroreversing.com/nintendo-wii-d… . If you have any additional information let us know! #gamedev #programming #hardware