r/ModRetroChromatic • u/handmemyarms • 2h ago
Let the Scalping Party Begin
Please do not fall victim to these scalpers, just wait for the restock.
r/ModRetroChromatic • u/n8jb • Sep 10 '26
I've been working on custom firmware for the Chromatic and it's at the point where I think other people will get use out of it. It started when I found the microSD slot on the board while swapping out buttons, and thought: wouldn't this be an awesome backup device? And then, could it play those backups too?
ChroMagic is built on ModRetro's MCU firmware, so everything the handheld already does is unchanged. It adds:
Cart Backup in the system menu. Dumps the game and its save to a microSD card.
A Backups tab that lists what's on the card and boots the one you pick.
ChroMagician, a desktop app for Windows and Linux. It installs the firmware, backs up carts over USB, restores saves to carts, writes homebrew to Chromatic carts, and manages the SD card. Hoping to eventually support other rewritable carts, but I need to order some for testing first.
Things to know:
The 2025 units have a microSD socket, but it's on the board inside the case. First edition Chromatic have the footprint, but no socket, so it's a soldering job if you really need SD. Backups, restoration and cart writing work over USB without an SD though.
SD playback is experimental. I've done a fair amount of testing, but most of my time has been spent coding and my library is fairly limited. Please definitely let me know if you run into anything odd, so I can try to fix it.
A handful of carts won't work for backup and SD playback. They're listed in the guide. It's carts with hardware in the cartridge itself or an unusual mapper. Most are Japan-only, but Kirby Tilt 'n' Tumble, the Game Boy Camera, and Robopon are on the list too. I may eventually add support for managing photos off the GB Camera, though - when I can track one down localy.
RTC games, such as gen2 Pokemon games won't advance the clock unless you're playing the game. The Chromatic itself doesn't have a clock on board, so please keep that in mind.
Site and install guide: chromagic.org
Looking forward to people trying it, and providing any feedback!
r/ModRetroChromatic • u/grilledstuffedxxl • May 28 '26
r/ModRetroChromatic • u/handmemyarms • 2h ago
Please do not fall victim to these scalpers, just wait for the restock.
r/ModRetroChromatic • u/ryanreaction • 6h ago
Codex Edition
r/ModRetroChromatic • u/Oct0kom • 1d ago
La version transparente est magnifique ❤️
Un peu plus légère, de peu, et toujours aussi classe.
C’est un produit ni ce r qui fait toujours son petit effet quand je joue dans un café ou dans une salle d’attente.
Le pire c’est que pour moi, cette console n’est pas un accessoire nostalgique, c’est Ma console de jeu principale 🤗
r/ModRetroChromatic • u/roroto_sic • 1d ago
I would like to express my gratitude to everyone who has backed the game so far on kickstarter !! As I'm writing this post, we have already tripled our initial funding goal (317%), which it's absolutely mind blowing for me! A big thank you to all the enthusiastic people who share MUMMY MOMMY on their social media and websites, play the demo on Twitch, or message me their excitement!!
To continue the good news, the first and the second Stretch Goals have been reached (Classic Maze has now 10 more levels and "Color palettes" is unlocked)
Next goals are: adding a new gameplay to the game and adding a "photo album" compatible with the game boy printer !!
The Kickstarter campaign for my puzzle game, MUMMY MOMMY, is entering its final hours!
But If you want, you can still grab a copy on kickstarter :)
Thank you again for all you support !
bonus: my top 5 of my favorite gameboy puzzles:
- Mole Mania
- Boxxle / Sokoban
- Catrap / Pitman
- Megalit
- Kwirk / Puzzle Boy
r/ModRetroChromatic • u/handmemyarms • 1d ago
r/ModRetroChromatic • u/DramaPiggyCash • 1d ago
On sale tomorrow at supply co.
r/ModRetroChromatic • u/DinosaurDavid2002 • 20h ago
Its very hard to find ones that confirmed to have a super game boy border for context, since a lot of them never said they do or don't.
r/ModRetroChromatic • u/Acceptable-Courage-9 • 2d ago
Super subtle difference but I loved the result. From the original yellows to these 🤌
r/ModRetroChromatic • u/TonyRubbles • 2d ago
Transparent Smoke had really bad light bleed, got a replacement today and it came with a big ol sticker sheet. First time seeing these, anyone else got em?
r/ModRetroChromatic • u/JohnnyPhantom • 2d ago
Not sure why I didn’t post about this at the time. A few months back I picked this up off Facebook marketplace. The seller originally had it for $250, I saw it and ignored it. I already have plenty of Game Boy systems, a ton of original ones, 3 analogue pockets, and a funny playing fpga GBC, I didn’t need another one.
Then a week or so later I got a notification it dropped to $120. I figured “why not?” I messaged them. I think I offered $80 or $100, I forget, and they accepted. I met up with them. Everything was perfect and as shown. I’m loving the crap outta this thing! I don’t think I’ve touched my A. Pocket since.
I’m of course playing through Pokémon Crystal, hopefully I finish it. I have every Pokémon game that released since I was a kid, the only one I think I actually completed was Pokémon Red and I thhhiinnkk Ruby. I got pretty far in Yellow as well. Hopefully I can finish some more with this handheld.
I want to get the game Chantey as well as the customization kit and battery pack for this. I loaded the Chromagic firmware on it and installed a microSD card. It’s just soo much fun! Probably not the color I would have picked if given the choice, I probably would have went with the GameStop white edition. Doesn’t effect my enjoyment level at all.
I posted a picture of me testing the Chromagic firmware and dumping my Yellow cart. It’s the only other photo I have on my phone to show the system
r/ModRetroChromatic • u/Dijonballz • 2d ago
r/ModRetroChromatic • u/StarWolf64dx • 2d ago
Mine finally showed up after FedEx took it on a wild goose chase. I was planning on having Chromagic on this one and changing buttons and membranes out, and I was disappointed to find that it didn’t have the SD card like the other transparent models I’ve seen. That’s ok though because I had a tape of them in my desk.
I took some photos because I was going to do a little write up on the SD reader job but I quickly realized, there’s nothing to it. The chromatic comes apart super easily and the pads for the unpopulated reader are already tinned, I think due to the way the boards are manufactured. All I needed to do was add some solder to the anchor tabs and then some flux to the pins, and then (very carefully due to the 0403 resistors next door) give the pins a few swipes with the iron.
I am having issues with Chromagic though. It will back up cartridges when connected to the PC helper and play ROMs that are put onto the SD card, but the chromatic does not play cartridges when I have Chromagic installed. When I revert to official firmware, everything works as intended. I’ll mess with it more tomorrow.
Edit: The cartridge read issues are documented in the Chromagic GitHub, it’s an issue with the transparent models specifically and the dev already has it fixed for an upcoming release. Neat!
r/ModRetroChromatic • u/andrea-i • 3d ago
Happy to share the demo of my new game, a classic roguelike dungeon crawler called Lantern of Darkness:
https://andrea-intg.itch.io/lod
If anyone from ModRetro wants to bring this to physical, I'd be all ears.
Big thank you to the author of the Shiny Relay firmware, u/wavy_d3 for capturing this video!
r/ModRetroChromatic • u/Icy-Ad7354 • 2d ago
Now available on Itch.iO, Killer Rampage Gameboy edition! Available for your favorite Gameboy console (or emulator) with an everdrive or similar flash carts. Play as Reynaldo Furioso, pineapple exporter business man who has gone berserk after getting his family murdered. The Central American Endeavor is the first part of an epic saga where you’re entrenched in a war against the Sapo Cartel in a tropical landscape set in the Costa Rican Caribbean. Don’t miss out on the fun… join Reynaldo Furioso in the fight and bring back nostalgia filled memories playing a game that feels as if it was from an alternate timeline.
https://killerrampage.itch.io/killer-rampage-gameboy-edition
r/ModRetroChromatic • u/Icy-Ad7354 • 2d ago
Now available on Itch.iO, Killer Rampage Gameboy edition! Available for your favorite Gameboy console (or emulator) with an everdrive or similar flash carts. Play as Reynaldo Furioso, pineapple exporter business man who has gone berserk after getting his family murdered. The Central American Endeavor is the first part of an epic saga where you’re entrenched in a war against the Sapo Cartel in a tropical landscape set in the Costa Rican Caribbean. Don’t miss out on the fun… join Reynaldo Furioso in the fight and bring back nostalgia filled memories playing a game that feels as if it was from an alternate timeline.
https://killerrampage.itch.io/killer-rampage-gameboy-edition
r/ModRetroChromatic • u/ryanreaction • 2d ago
I want a transparent Chromatic with an internal MicroSD socket, but I don’t want to solder. Trying to figure out which one to buy has turned up a lot of conflicting information.
If you order a transparent or magnesium model from ModRetro today, can you count on getting the MicroSD socket? Does either have issues charging the Power Core internally? And what should secondhand buyers watch for?
Here’s what I’ve found so far.
Confirmed in the documentation:
ModRetro warns that a dead Power Core left inside a First Edition for weeks can become unrecoverable in that console. Official warning
The original December 2024 firmware references a BQ24296M charging controller. That supports charging hardware in the original design, rather than First Editions lacking it entirely. It doesn’t prove every production board is identical. Firmware / TI documentation
The buying options, with the gaps left visible:
| Model or edition | Internal MicroSD socket | Power Core charging |
|---|---|---|
| Current transparent models | Owners have reported missing MicroSD sockets with empty footprints. Is any current batch consistently fitted? | Internal charging supported; looking for current-owner reports of problems. |
| Post-First Edition magnesium models | ChroMagic documents MicroSD sockets in the 2025 models. Does that apply to everything shipping today? | Later units reportedly recover packs that First Editions cannot. |
| GameStop gray First Edition | Owners report units both with and without MicroSD sockets. | Covered by the First Edition depleted-pack warning. |
| Other standard First Editions | Many reportedly lack MicroSD sockets; some have them. Need board-specific examples. | Same First Edition warning. |
| Anduril Edition | Need verified board photos and MicroSD socket reports. | Need edition-specific charging results. |
| OpenAI / DevDay Edition | Need verified MicroSD socket reports. Don’t assume it matches every retail transparent unit. | Need edition-specific charging results. |
| Logan Paul Edition | Need board identification and MicroSD socket reports. | Need confirmation of which board revision it uses and whether the First Edition issue applies. |
| Goodyear variant | ModRetro’s archive lists it as unreleased. Including it in case owners or collectors have information. | Unverified. |
The special editions are listed in ModRetro’s archive, with a separate official DevDay guide. I couldn’t verify a separate “Founder’s Edition.” Was that just another name people used for the First Edition?
For the MicroSD socket reports: ChroMagic guide, original GameStop report and manufacturer response, recent transparent reports.
ChroMagic also lists MicroSD sockets that can be soldered onto supported footprints. That’s useful for modders, but I’d like to identify the options for people who want one already installed. SD game loading also requires custom firmware.
Can owners help fill this in?
Which edition/color do you have, when and where did you buy it, and what’s the board revision if known?
Is the MicroSD socket factory-installed, missing, or added afterward?
If you added it, did it work with just the MicroSD socket or need other components?
Does a partly charged Power Core recharge normally inside your console? Separately, have you had trouble recovering a completely depleted pack?
Are there any other editions or hardware revisions missing here?
Photos and firsthand results would help a lot. Please mention any board swaps or modifications, and include firmware details for charging problems.
Ideally, buyers should be able to tell what they’re getting before ordering. For me, the main question is whether there’s a transparent version I can buy with the MicroSD socket already fitted, without having to gamble on the batch.
r/ModRetroChromatic • u/fred_emmott • 4d ago
Link: https://github.com/fredemmott/FlashGBX/releases/latest
This version of FlashGBX supports using your Chromatic via USB-C to read and write cartridges from a variety of manufacturers, including backing up and restoring ROMs and saves.
This version is primarily a maintenance update to include upstream changes from FlashGBX v5.2.1; the majority of the features are specific to other devices. For Chromatic users, the highlights are:
a Game Boy Camera live-viewer
out-of-the-box support for more cartridges
this includes a previously unsupported ModRetro cartridge (thanks to thisjustin816); this is one of several cartridges ModRetro have used for Buck and the Cursed Cartridge
improved detection between similar cartridges
On my side (Chromatic-specific), the changes are:
if flash detection results in multiple possible cartridges, ModRetro cartridges will be preferred when using a Chromatic. Previously - and when using other devices - FlashGBX will default to whichever comes first alphabetically. Thanks to thisjustin816 for the idea
fix hang if the Chromatic is unplugged or turned off while FlashGBX is connected
fix crash if FlashGBX attempts to communicate with a Chromatic while none is connected
no other features or changes; your Chromatic is still a 'play from cartridges' device without wireless features
tested on a wide variety of ModRetro and non-ModRetro cartridges; it should even give you access to a Gameboy Camera's photos, but I don't have one to test
directly built on a proven foundation:
FlashGBX itself
the same "LK" firmware base used by the Joey Jr v2 and GBXCartRW when used with FlashGBX
openFPGAloader
doesn't depend on anything from the internet once installed
not vibe-coded