JOTEGO

Service Release + Victorious Nine

The JTFLSTORY core now covers one more game:

History

Baseball game released by Taito in 1984. The game uses the names of Japanese professional basebal...

TYPHOON GAL/ONNA SANSHIRO - RUMBA LUMBER

I resumed work on the JTFLSTORY beta. There are a few more games that run on similar hardware. The new beta brings support to two more games.

TYPHOON GAL/ONNA SANSHIRO

     2025-02-07 20:10:01 +0000 UTC View Post

JTTWIN16: Cue Brick Support

 2025-01-24 15:08:21 +0000 UTC View Post

Gradius 2: Gopher's Ambition

This week JTTWIN16 beta is expanded to support Gradius 2. This game was originally failing because the scroll settings that affect the sprite location were not applied at the expected time. That caused the game not to detect any collisions so the ship would just have a peaceful travel to the boss scene, and then stay there as you cannot hit the ...

Ninja Gaiden/Shadow Warriors

Happy New Year and welcome to the first release of 2025. We just had JTTWIN16 beta featuring Dark Adventure a few days ago so I am sure you did not see today's one coming!

Update your BETA.KEY file for this release

History

Developed by Tecmo, this belt-scrolling action game was first released in Nort...

The Game with Three Names

History

Devil World in Europe, 魔獣の王国 Maju no Okoku in Japan and Dark Adventure in North America, where the game system was significantly changed. This Konami's 1987 game was developed by Hiroyasu Machiguchi, who worked on "Gradius" and...

Service Release

A couple of small things that affect almost all JT cores in this week's release:

• Better low pass filter implementation, with more precise cut-off frequency, attenuation and much less quantization noise. This is a side effect of the work I have been doing on implementing the equalizer for JTFLSTORY

• Support for screen ...

  2024-12-21 08:23:44 +0000 UTC View Post

The FairyLand Story

Saturday release this time, as there was a last minute hickup yesterday.

History

This fixed-screen action game was developed and released by Taito in 1985. Compared to "Chack'n Pop", a game with a similar system released by...

World Cup: Analog Controls and Audio Volume

Work on Tehkan World Cup electrical schematic diagrams is finished. It has brought up a number of new discoveries on this hardware:

• correct video timing (including frame rate)

• 3kHz antialias audio filter for PCM

• 16-step volume control for PCM audio

• priority control for character and spri...

  2024-11-29 12:17:12 +0000 UTC View Post

1985 World Cup

History

The most popular soccer game in the 80's arcades was released by Tehkan, the former name of Tecmo in 1985.

There were two types of cabinet of it: upright one which had a uniform shape when viewed from the side and table one which ...

GFX Patches

Work on Konami-compatible hardware continues. Impacting several cores. See the post images for examples of fixed scenes.

• Fixed missing button 3, missing OSD option for dip switches and shadow problems on X-MEN

• Fixed 2024-10-25 16:31:25 +0000 UTC View Post

JTXMEN Beta

We bring a new beta core, JTXMEN, compatible with KONAMI's X-MEN hardware. KONAMI's X-MEN is based on the 1989 US-aired PRYDE OF THE X-MEN cartoon, and the colourful costumes conform to those of the time. The appeal of this title was that players could choose from six main characters, with flashy explosion effects and flying gad...

Service Release

Service release this week, with special attention to NGPC as more games work now:

• Revisited shouse: flip not working which did not work well on Analogue Pocket.

• Fixes on the NeoGeo Pocket color core have rendered many more games...

  2024-10-04 14:33:28 +0000 UTC View Post

The Other Avengers

There have been developments related to CAPCOM's Avengers (1987). A copy of the Trojan schematics appeared in the internet a while ago. It included a sheet for an MCU (microcontroller unit) that was not used on Trojan. Looking more into it, this was for Avengers. Recently too, a dump of this MCU also appeared on the internet. Dumping MCU ROMs is...

The other avengers

There have been developments related to CAPCOM's Avengers (1987). A copy of the Trojan schematics appeared on the internet a while ago. It included a sheet for an MCU (microcontroller unit) that was not used on Trojan. Looking more into it, this was for Avengers. Recently too, a dump of this MCU also appeared on the interne...

Rumbling Super Stars

Do you remember the thrill of stepping into the arcade as a kid, hearing the roar of the crowd and the iconic entrance music of your favorite WWF wrestlers? WWF Superstars, released by Technos Japan in 1989, was the game that brought all of that action to life.

It was the first WWF arcade game, and it had everything: real ...

Circus Charlie & NGP Color

Very busy three weeks working on many, many items. Some of them involved changes to many cores. 515 files have been edited in the source code since the last JTFRIDAY, so plenty of work. The main achievements are:

A new c...