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Español abajo, 日本語は以下, Português abaixo

As you probably all know, Furrtek made an awesome research work on the Konami chips used in the TMNT arcade game. These chips are used in other games and I had made my own version of them based upon his detailed findings. The JTALIENS core uses those chips, for instance.

Furrtek was working on a MiSTer core for TMNT, for which there is a preview available. It is playable but it has some problems. After asking Furrtek for permission so as not to be in the middle of his development roadmap, I decided to make my own core for this board.

Atrac17 and DJHardrich loaned this system to me a while ago. Atrac17 has also tested this new core thoroughly and we think there are not bugs. The sound mixing can be improved but I am leaving that for the future. I’d like to spend some 3-4 weeks modelling the analog sound output of all these chips better and then apply the findings to all cores. But, we need to catch up with the core backlog first.

The new JTTMNT core is available for the usual platforms at the usual locations. It is likely that it can be expanded to support several other games, as a minimum, Missing in Action (Green Beret 2) should work with just small changes to it.

Work on NGP continues. We found a small bug in one of the CPU instructions but it didn’t have an effect on the games. On the schematic front, Esperanza has started Turtles in Time after her work on the Simpsons was complete.

Thank you so much for the warm reception of the JTSIMSON core last week and your continuous support.

Español

Como probablemente todos saben, Furrtek hizo un trabajo de investigación impresionante sobre los chips de Konami utilizados en el juego de arcade TMNT. Estos chips se utilizan en otros juegos y yo había hecho mi propia versión de ellos basándome en sus detallados descubrimientos. El núcleo de JTALIENS utiliza esos chips, por ejemplo.

Furrtek estaba trabajando en un núcleo MiSTer para TMNT, del que hay disponible una versión preliminar. Es jugable pero tiene algunos problemas. Después de pedir permiso a Furrtek para no estar en medio de su hoja de ruta de desarrollo, decidí hacer mi propio núcleo para esta placa.

Atrac17 y DJHardrich me prestaron este sistema hace un tiempo. Atrac17 también ha probado este nuevo núcleo a fondo y creemos que no hay errores. La mezcla de sonido se puede mejorar pero eso lo dejo para el futuro. Me gustaría pasar unas 3-4 semanas modelando mejor la salida de sonido analógico de todos estos chips y luego aplicar los resultados a todos los núcleos. Pero primero tenemos que ponernos al día con los núcleos pendientes.

El nuevo núcleo JTTMNT está disponible para las plataformas habituales en los lugares habituales. Como mínimo, Missing in Action (Green Beret 2) debería funcionar con pequeños cambios.

El trabajo en NGP continúa. Hemos encontrado un pequeño error en una de las instrucciones de la CPU, pero no ha tenido efecto en los juegos. En el frente esquemático, Esperanza ha empezado Turtles in Time después de que su trabajo en los Simpsons estuviera terminado.

Muchas gracias por la calurosa acogida del núcleo JTSIMSON la semana pasada y por vuestro continuo apoyo.

日本語

皆さんご存知のように、FurrtekはTMNTのアーケードゲームに使われているコナミのチップについて素晴らしい研究をしていました。これらのチップは他のゲームでも使われていて、私は彼の詳細な調査結果に基づいて自分なりのバージョンを作ったんだ。例えば、JTALIENSコアはこれらのチップを使っている。

FurrtekはTMNT用のMiSTerコアに取り組んでいて、プレビューが公開されています。プレイは可能ですが、いくつかの問題があります。Furrtekの開発ロードマップの邪魔にならないよう、Furrtekに許可を求めた後、このボード用に自分のコアを作ることにしました。

少し前にAtrac17とDJHardrichがこのシステムを貸してくれた。Atrac17もこの新しいコアを徹底的にテストし、バグはないと考えています。サウンドのミキシングは改善することができますが、それは将来のために残しておきます。これらのチップのアナログ・サウンド出力を3~4週間かけてモデリングし、その結果をすべてのコアに適用したい。しかし、その前にコアのバックログに追いつく必要がある。

新しいJTTMNTコアは、通常のプラットフォームで通常の場所で利用可能です。他のいくつかのゲームをサポートするために拡張できる可能性があり、最低限、Missing in Action (Green Beret 2)は少し変更するだけで動くはずです。

NGPの作業は続いています。CPU命令の1つに小さなバグが見つかりましたが、ゲームへの影響はありませんでした。回路図の方では、エスペランサがシンプソンズの仕事を終えた後、タートルズ・イン・タイムを始めた。

先週はJTSIMSONコアを暖かく迎えてくださり、また継続的なサポートをありがとうございました。

Português

Como provavelmente todos sabem, Furrtek fez um trabalho de pesquisa incrível sobre os chips da Konami usados no jogo de arcade TMNT. Esses chips são usados em outros jogos e eu fiz minha própria versão deles com base em suas descobertas detalhadas. O núcleo do JTALIENS usa esses chips, por exemplo.

Furrtek estava trabalhando em um núcleo MiSTer para TMNT, para o qual há uma prévia disponível. Ele é jogável, mas tem alguns problemas. Depois de pedir permissão a Furrtek para não ficar no meio de seu roteiro de desenvolvimento, decidi criar meu próprio núcleo para essa placa.

Atrac17 e DJHardrich me emprestaram esse sistema há algum tempo. O Atrac17 também testou exaustivamente esse novo núcleo e acreditamos que não há bugs. A mixagem de som pode ser melhorada, mas estou deixando isso para o futuro. Gostaria de passar de três a quatro semanas modelando melhor a saída de som analógico de todos esses chips e, em seguida, aplicar as descobertas a todos os núcleos. Mas, primeiro, precisamos nos atualizar com o backlog do núcleo.

O novo núcleo JTTMNT está disponível para as plataformas usuais nos locais usuais. É provável que ele possa ser expandido para suportar vários outros jogos; no mínimo, o Missing in Action (Green Beret 2) deve funcionar com apenas pequenas alterações.

O trabalho no NGP continua. Encontramos um pequeno bug em uma das instruções da CPU, mas ele não afetou os jogos. Na frente esquemática, Esperanza começou o Turtles in Time depois que seu trabalho nos Simpsons foi concluído.

Muito obrigado pela calorosa recepção do núcleo JTSIMSON na semana passada e pelo seu apoio contínuo.

Files

Comments

Tony Shong

Thank you soooooo much for your great effort!!!!!!

JonnyRage17

This is awesome, thank you! Just curious if you will continue working on other Konami boards such as Sunset Riders and Mystic Warriors at some point down the line now that you and your team have been working on Konami boards?

Richard Maxey

I got so excited seeing this, I dropped my phone! Thank you for your awesome work and this super cool stealth drop. I was convinced it was going to be X-Men today(which would have been just as amazing). You’re the reason I signed up for and will continue to be the reason I stay on the Patreon platform. Cheers!!

Spiff

It’s refeshing to hear developers sharing between projects instead of just a bunch of different forks going nowhere. Happy Friday Team Jotego

Martin Hinchliffe

Hi there, loving your cores! Just wondering if The Simpsons is now working after changing the controls in the menu on Mister? When I tried yesterday I got a error with the 12C rom afterwards.

Pixel Cherry Ninja

Nice, this is great for MiSTer users, but especially great for Pocket users, as this was a core that pocket users always requested. Thanks team, and I hope you all have a good weekend.

Frank McDonald

think everyone was expecting X-Men after it was mentioned in last weeks update but no-one will be complaining about an improved version of what Furrtek started. It'd be great if this means we're going to get a load of Konami cores from that era in the not so distant future. Very exciting stuff!

Wayne

What a day to be alive 🐢

Ronald Dean

Hell yea. This is what it’s about!!!! Much love.

James Kilgore

Great news about TMNT. One (possibly dumb) question. How in the OSD do we distinguish between your core and Furrtek’s core?

Jesus Rodriguez

It feels like Christmas! Thanks Jose and your team for making this possible. Game plays amazing and the sound is flawless. I’ve played this a few years ago at a local arcade and with the mister it doesn’t feel any different. What a dream come true.

Mat Azel

Thank you guys so much for your work !!

Martin B

Err pocket_updater can't find the necessary TMNT rom. Any tips?

Adam Davis

TURTLES AND TURTLES IN TIME?!?!?! 😳😵 You guys are AMAZING!!!! Thank you so much! 🙏🏼🙏🏼🙏🏼

Dr. Manga

Genial. Gracias como siempre don José y enhorabuena a su equipo por un gran trabajo.

AlxUnderBase

Gracias , Jose ! Great to have possibility to play again this game , like in my childhood times when arcades was all over the place !

Steven S

YES!!! Thank you!!!!

Rautz

Happy JTFriday everyone!! Thanks Furrtek for working on the Konami chips 😀 Looks like this coming summer(winter for you northeners) is going to be an awesome one! Thanks to Jose, the team and anyone behind the scenes that makes these releases possible. Nice to see Atrac_17 and DJHardrich helping out by lending pcb hardware, thanks team!!! Churry

Christoph

I always get this error when starting the rom: games/mame/tmnt.zip/963a31.g19 not found ... And a similar message also pops up when i try to start the simpsons . I put the jtbeta.zip in the right place and the jtfriday.zip as well. And used update all as well . Can anyone pls help me out ?

Mark Saunders

This is so cool- more TMNT goodness, will check this out tomorrow ! Thanks team JT

Mark Saunders

With everyone involved This is spot on now 100%, the title music is so much clearer and louder. Big differences, just superb :)

Lessthankate

One game away from having a clean sweep of the Konami style turtles games on the Pocket, plus the Simpsons. I have been getting in tons of practice thanks to these new cores.

Waifu4Life

I don't see a US 2 Players MRA for Teenage Mutant Ninja Turtles in the package.

Alan Johnson

Amazing!!! Great work!! Fingers crossed X-Men is on the way sometime too!

joseph

Great Job on this core. Is there anyway that you can update Super Street Fighter 2 New Legacy v0.8 on the core?

Atom

Can't say thank you enough for all your hard work in getting these cores up and running! Relative noob here who needs a little help (and advance forgiveness if this is a stupid quandary). I'm having difficulty obtaining the necessary ROMs to run the 2 player version. I'm working on a Mac and neither MRA converter tool is compatible. Any files I find via search engine when unzipped are folders with multiple non-ROM files. Not sure what to try next, but any help would be appreciated!

Ross Liversidge (edited)

Comment edits

2026-09-06 20:00 Great to see all the work going into making the Pocket live up to its potential, thank you! As a relative newcomer to the scene, is there anything that needs to be done to the ROMS to make the emulation work? I keep getting "Error in Framework Missing 'ROM' ID [1]" error despite placing the World X version in the Common folder. A "catch up how to" would be really useful if you get the time.
2023-08-29 11:10

엘케

It says "error in framework missing rom id [1]" and does not run. Can you tell me why?

Adam Davis

Hey Jose, noticed the other day while playing that while battling Rocksteady boss level 1 Leo’s shadow and Rocksteady’s shadows were overlapping with each others characters and looking a little weird. Have you come across this issue?

Mobiledecay

After updating I get a bunch of credits scrolling on the screen and I can't do anything. ☹️

Adam Davis

Hi Team, did TMNT get moved? Just ran an update this morning and can’t seem to find it …. 🤷🏻‍♂️

Nick Nielson’s Nepenthe

The game boots up, but there is a bunch of text in the way and can start/insert coin. Any thoughts?

Sean Worsham

How do I get this to work? I use update_all on MISTer but I don't see the game itself just the core.