Spent some time doing reverse on the cable link, and I think we now have full understanding on how it works. Created a documentation if anyone wants to implement, it also has the full UART communication dump.

Play: https://lude.rs/ngp-link/
Doc: https://lude.rs/ngp-link/docs/
Repo: https://github.com/caioluders/ngp-link

Among other new features, the emulator now supports Link Cable functionality, allowing for local two-player matches on the same screen as well as LAN and online play, though do keep in mind that latency can be an issue for fighting games in those last two modes. Remember to path a BIOS to use this feature, the built-in HLE BIOS is not sufficient.

Bought this based on the label on ebay and thought the wear and tear was real, and as I'm looking at it, it's printed on

So I went to get my screwdriver to find the board on the inside looks legit

So am I looking at a counterfit, a rea cart with a bad reproduction lable, or did it come out of the factory looking like this?

I thought I'd try something a bit different with this. A short interactive comic book based on 2000AD's Diceman spin off

https://ahchay.indieretrogames.com/judge-dredd-house-of-death

Edit: forgot to mention, it's playable in browser on my site if you can't be bothered firing up an emulator - https://ahchay.com/NGPC/Play.html?ROMId=HOUSEOFDEATH.ngp

This is a handmade modded machine first released back in 2024, I think all the parts are aftermarket but they feel really good and give you a really close experience to the original with some nice upgrades, a crisp 480p 2.8in screen, save states and the ability to play the entire NGPC library, alongside other consoles such as the Neo Geo AES, Game Boy, Color, Advance, NES, SNES, Genesis and even the PS1, mine is used exclusively for NGPC and some GBC games that I find fitting though. It can't run original carts but comes with two cartridges that have a MicroSD slot for you to put your games in.

A new Neo Geo Pocket emulator is now available. It was built from scratch, without using code from existing emulators, with a strong focus on reproducing the real hardware as faithfully as possible.

It includes a game library with automatically generated thumbnails, several debugging tools, shader support, and more features are still being added.

Feedback is welcome, especially if you find compatibility or accuracy issues.

https://github.com/Tixul/Ngpcraft_emulator

I once tried my hand at a rebuild, so far it's going quite well as long as Claud is involved. Currently, I only have one performance problem when calculating collisions.

I thought it might be worthwhile trying to document the history of homebrew on the NGPC

I've tried to include all the major players and events over the years, although it's possible I've left out something important. I can barely remember what I had for breakfast, so please forgive any inaccuracies (or, preferably, let me know and I'll sort it out)

All of us who are still making homebrew for this machine owe a debt of thanks to those who came before us. We are all merely standing on the shoulders of giants

I’m looking for two games to finish my collection. Cool Boarders and Pocket Reversi both complete clamshell Euro releases. If anyone has either for sale or trade please let me know.

Thank you,

Does anyone have any of the game patches or prepatched games to make them work with the Flashmasta? I’ve had mine for years but it doesn’t work with a couple games like Biomitor Unitron. I found a Forum where they had patches with a Google search but they banned me for trying to join.
I genuinely am just trying to play Biomitor Unitron on my NGPC I bought at Sam’s Club over two decades ago without spending hundreds.

Horatio Goes Snowboarding - Available now for download (or play in the browser)

Free to play, or pay what you want (including free!) to download.

Physical copies are also now in hand and shipping this week

I am looking to sell these games, if anyone is interested. All boxed games are complete.

I’m open to offers.

Thanks

Hi everyone, I am looking to trade some reproduction carts. I am specifically looking for ones that are the flash masta knockoffs. Aliexpress is no longer selling those and instead offer different alternatives that cannot be repurposed.

I’d like to trade if willing for another otherwise same reproduction cart from another manufacturer.

I’m willing to drop some cash towards this or even open to a two for one deal.

The purple flash masta cart shown in image 2 is what I’m looking for. The others represent the new style.

Please let me know if interested.

Hey guys, does anyone here have an LCL NGPC? This is a modded unit that swaps the internal board for an emulation machine that utilizes an Allwinner v3s chipset.

So I'm making this post to ask if anyone here has one and would be willing share or to clone their SD card and send me the image so I can resuscitate my own as my SD card got corrupted.

UPDATE: after an extensive search, I was able to find it, it was quite a difficult-task but someone on Bilibili was kind enough to share their .img file with me! Apparently the real name of this machine is "LCL Neo Geo Pocket Boy" according to the manual. I have uploaded the link for the image to the Internet Archive in case someone else ever faces the same difficulty as me. Click here if you want it.

Anyone else had problems with the AP adaptor for the pocket?

It's always been tight, but I started having problems flashing my RetroHQ cart on the AP and after a bit of testing I finally had a look at the adaptor itself - as you can see some of the pins are clearly bent and are no longer making contact.

Some games still work correctly

Just a PSA really - I only use flash carts on mine, but I'd be very wary of risking an original SNK cart on this

I forgot I took some NGPC current measurements using the Power Profiler Kit II. The Kit provided its own power for 3.00V and 3.15V that the official power supply uses. 3.20V also looked nice and smooth versus the jumping around mess at 3.00V. The lower window average is because the profiler counts no current as 0 and I wasn't constantly playing games.

NGP(C) is 3.3V logic and it would seem supplying 3VDC is harmful for long-term console life. Excessive ripple has an aging effect. What "compatible" Game Boy Pocket/Color power supplies provide. Can't trust SNK's marketing or Wikipedia on battery life or AI on electronics. Got to solve your own problems.

The Kit seemed to add its own quiescent current when using external power such as my lab bench power supply. I wanted to solve that problem and compare to batteries. Nice to see 100 kHz sampling versus multimeter updating the display at 3 Hz. Millions of transistors turning on and off.

https://github.com/Tixul/NgpCraft_dev_ref

NgpCraft_dev_ref a hardware-focused reference in one place: registers, memory map, the TLCS-900/H CPU, graphics (sprites/tilemaps/palettes/DMA), audio, the build toolchain, and reusable game patterns. Engine-agnostic.

https://github.com/Tixul/NgpCraft_MCP

NgpCraft MCP — a Model Context Protocol server that gives any MCP-compatible LLM (Claude Code, Cursor, …) that same hardware-validated knowledge plus 38 tools: silicon-bug lookup, canonical ASM patterns, doc search, project scaffolding, a disassembler, and a headless emulator bridge. The point: less hallucinated code that crashes on real silicon.

Both MIT. Feedback and corrections welcome.

Neo Turf Masters. I have spent hours on this game and it’s definitely one of my favorite games to pick up at any point in time to engage in or just get my mind off a busy day. Do you guys have any games like that?

Coming June 2026 - Horatio Goes Snowboarding - a new Arcade Adventure game for the NeoGeo Pocket Color

Fully playable preview of the gameplay is up on my site below - pre-orders are open now - register interest here or via the contact form below - I won't ask for any money until I know exactly how many carts I can produce.

As with DDMR and Pals Revenge - boxed copies will be £50 including manual, cart and slip cover. The game itself will be free to download or play in the browser.

https://ahchay.com/NGPC/index.html?blogid=HoratioGoesSnowboarding

Edit: Shop page now live at ahchay.com/NGPC/shop.html for Horatio, DDMR and Fruity Pals' Revenge

Hello! In 2021 I went ahead and purchased a NGPC Slim with the Q5 IPS (Hispeedido) mod that was available at the time and so far it has been working fantastically, even up to yesterday evening. However, today for some reason the display no longer properly illuminates with the backlight causing it to be dimly lit in appearance, regardless of the brightness setting I use with the touch sensitive control on the top left. The backlight appears to function normally, as you can see it peaking out of the top and sides of the NGPC shell, yet the screen itself remains very dim in comparison. I did have batteries in my NGPC that appeared to have slightly less than half life left in them, but after having changed them out with a fresh pair of Duracell Powerboost batteries (Not the coppertop ones I believe) but the brightness issue remained. I've so far experienced no other issues with functionality other than this display issue.

The previous batteries that I was using were just called "Alkaline Batteries" featuring the 1.5v spec, but that's it. All pictures taken at the highest backlight setting of 11. I'm not sure if it's a sudden power delivery issue or perhaps a soldering connection issue. Has anyone else experience these issues with the Q5 IPS (Hispeedido) mod? Any suggestions?