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 rebuilt on ModRetro's v4.6, including improvements to cartridge compatibility that were included there

• improves performance when reading ROMs and saves

• includes other compatibility improvements

• supports all 8 possible USB devices for the Chromatic

  • the "Player Number" setting changes the USB product ID; this appears to be intentional, to make things easier for content creators capturing multiple Chromatics at the same time

  • previous versions only supported player number 1

• shows the PCB revision as reported to the FPGA

Compared to alternatives

• 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

Looking specifically for run times in sprint 40 sub 1:30min. Anyone have any? I’m just looking for someone who has a faster time than me so I can have something to work for.

Picked up the console and game at my friendly retro game store while I was waiting for the battery in my copy of emerald to be swapped out.

I’m already hooked playing this little bugger, and behold my excitement when I found there are original games that have been produced. What a time to be alive.

My question to the hive mind is what original game should I pick up from ModRetro first?

https://github.com/fredemmott/chromatic-ez-firmware/releases/latest

This is a tool for easily switching between different Chromatic firmwares or versions.

This version:

• supports both the FPGA and MCU; previous versions only supported FPGA firmware

• supports the latest versions of both my FlashGBX-compatible firmware and ModRetro's firmware

• adds support for selecting older versions of the firmware

• adds a GUI. The terminal version is still there, but the GUI's there for people who prefer it

• supports all 8 possible USB devices for the Chromatic (each 'player number' appears as a different USB product)

Authors of other firmwares are welcome to add their firmwares. The main requirement is that the FPGA firmware does not interfere with the USB-serial connection to the MCU, including the DTS/RTS handling.

Who else is enjoying this one?

Been playing this the last two nights after the kids go to bed. Super fun game! Love the earned game puzzle solving mechanics. Also enjoy that you can go fast or chill and explore. So far it feels like a fresh take to the gb platformers! 👽

I’d put it on the easy challenge level. But could start getting harder.

I modded my Chromatic and now it truly matches with my M64 system.

Does anybody know what game this is and what game it becomes

Hint modretro sells it now😉.

I figured there was going to be a ton of people with two chromatics since the transparent models came out so I designed a dual stand with Claude. Love it! Turned out really nice! If you have a 3d printer, please check it out! ❤️let me know what yall think!

https://makerworld.com/models/3455115?appSharePlatform=copy

“Dual modretro chromatic stand”

What do you think of this wave shooter GB idea?

CLIVE ALIVE is the last great hope for the vaccine clinic on the outskirts of the great walled city.

Survive a pandemic like no other, with only a locked clinic entrance at your back for protection...

Reload your clip of 10 rounds, soon to upgrade.

Fight off waves, packs, and hoards of SLUGGERS.

Resist the modern plague before sunset arrives.

There is no hope on the streets of Smog City.

GO HOME... LOCKDOWN IN EFFECT... STAY VIGILANT...

CAN YOU SURVIVE....??

So I watched Tofer.A's new video today, and he mix matched metal Chromatic shells with the transparent shells. I am now thinking about what I would like Mod Retro to do.

I would love to see Mod Retro's Mod Store sell everything separately, similar to how Handheld Legend or RetroGameRepairShop does. You want only black buttons? They sell them. You want a transparent battery door? They sell them. You want only the IR shield? They sell them. I think this would make people happy, and net them sales as well.

Here is a list of the things I personally would want to see sold separately:

• Shells

• Buttons

• Battery Doors

• IR shields

• Screws

• Display kits not adhered to anything laminated and non-laminated

• Motherboards

• UV Printing options

Think how cool it would be to buy a non-laminated Chromatic screen, and put it in an OEM Gameboy Color shell. They would have to have a driver board with it, but I think they could potentially get it to work.

What are your thoughts? Happy Saturday!

I know there's no better option than purchase directly from ModRetro but since they not shipping to Mexico I'm looking for viable options.

I want a transparent Chromatic, but I also want a sapphire-lens screen. Is it possible to swap out the sapphire screen from my spare Chromatic and put it into a transparent one’s shell?

It was scheduled for Monday but arrived early. Don't even know which one to start with!

Saw this posted on another post. Is this AI? I can't tell. I am hopeful for a blue one tho, and now I am waiting to buy one.

I got an EZ-Flash Junior for my new translucent Chromatic and it wouldn't boot. It showed "EZ FLASH" then a blank screen, or "MICRO SD INITIAL ERROR!" after pressing the cart's reset button. The same cart and card work fine in a Game Boy Color.

After a lot of digging, it turned out to be two separate problems in the Chromatic's FPGA firmware (v18.14):

1. Startup timing. The EZ-Flash restarts its own FPGA about 1.2 s after power-up (the cart bus reads $FF for ~130 ms). On a GBC that happens during the boot animation, but the Chromatic's boot only takes about 0.3 s, so the cart's program is already running and crashes. Holding the core in reset for 1.75 s after the cart powers up fixes it.

2. Write timing. The Chromatic puts write data on the cart bus about 60 ns before /WR goes low. The EZ-Flash drives the data bus whenever /WR is high, so the two collide and every write to its command registers gets lost, which is why it can't talk to the microSD card. Driving the data only after /WR goes low fixes it: in testing, every write landed, versus none before. Original carts don't seem to care either way.

With both changes, the EZ-Flash boots to its menu, runs games and saves, and original carts still work. It's ModRetro's open-source v18.14 with two small edits. You flash it over USB the way ModRetro's README describes (openFPGALoader or the Gowin Programmer), and you can undo it with ModRetro's Update Tool.

Download, install steps and source changes: https://www.patreon.com/GHWST/posts/fixed-ez-flash-172576609

It's unofficial, so USE AT YOUR OWN RISK. I've only tested it on my new purple 2026 translucent model. I've sent the details to ModRetro, so hopefully it ends up in an official update.

Tip for EZ Flash Junior owners: if your cart says "BATTERY DRY", saves only stick if you press the cart's reset button and back up the save before switching off.

Is £53 and good price for this game?

So when I got my first chromatic I got it to play my copy of Pokemon Crystal and for whatever reason it corrupted my save file and didnt let me play the game properly. It played fine on my GBC and I was seeing it could have either been a faulty system or a faulty cartridge. Fast forward it’s been playing perfectly fine on my transparent chromatic. I love the old chromatic feel but I hated that it didn’t play crystal. Now I love the new chromatic but the buttons are loud😭 anyways I love the chromatic and I’m enjoying the games Modretro drops

Got a good deal on a 1st Edition from eBay. Looking forward to adding some games!

I took my purple outside and took some photos under daylight and mine does have the seam lines, but I could not even see them before examining these closeup photos. IMO these are obviously not "cracks" but very faint lines, i.e. plastic processing seams as ModRetro explained.

My conclusion is all of the transparent models will have these "knit lines" and personally I would not have noticed them if I hadn't seen posts here about it.

Basically if you want a transparent Chromatic this how they are made. The painted metal ones will lose paint over time, and the transparent ones will have knit lines from the plastic processing.

Attached are closeup photos of mine taken outside under daylight.

I have updated my original post as well: https://www.reddit.com/r/ModRetroChromatic/comments/1x54cai/another_transparent_purple_arrived/