JOTEGO posts
Some improvements
Polishing work on the Run'n Gun core continued this week. The core looks now much better on MiSTer and SiDi128 but the Pocket version still needs a few more days of work.
A while ago, one of our directors requested a core for Caliber 50, a game similar to Ikari Warriors. This title shares some logic with the JTKIWI core and will enable a b...
2025-11-21 17:34:00 +0000 UTC View PostRUN & GUN / Surprise Attack
RUN & GUN
Run & Gun is my favourite basketball game. I am thrilled to bring this to the FPGA realm!
History
This 5-on-5 basketball action game was released by Konami in 1993. When playing solo, you’ll be matched agai...
2025-11-07 16:26:21 +0000 UTC View PostJTS18: D.D.Crew/Hammer Away
D.D.Crew
History
This game is one of the titles for the Sega System 18, a side-scrolling fighting a...
2025-10-31 14:24:17 +0000 UTC View PostJTS18: Clock Work Aquario/Where's Wally
Clock Work Aquario
A new arcade game - yet from the past!? Clockwork Aquario was developed by Westone in 1991 on Sega’s System 18 hardware, and even went through multiple location tests in 1993. However, its release was cancelled, as the ...
2025-10-24 16:16:24 +0000 UTC View PostTurtles in Time
History
Released by Konami two years after the 1989 Teenage Mutant Ninja Turtles, this sequel was praised for improving upon its predecessor in every aspect—graphics, gameplay, and music—while also being welcomed for staying faithful to the original TV animation. Unfortunately, it never received an official release in Japan. The foll...
2025-10-10 09:41:31 +0000 UTC View PostService Release
These past two weeks we stopped working on new developments to go back to reported issues in released cores. Although this kind of work may not feel as exciting, it is actually quite rewarding when one issue leads to a better understanding of the original hardware and to a more accurate implementation. That was the case with Lightning Fighters, ...
2025-09-26 06:06:42 +0000 UTC View PostGolfing Greats/OutRun back on Analogue Pocket
History
In the late 1980s and early 1990s, the arcade market saw a surge of “realistic sports simulations,” with SEGA’s Dynamic Golf and Atari/Midway’s Golden Tee Golf enjoying great popularity. In 1991, Konami released Golfing Greats, powered by its uniquely developed PSAC2 graphics effects chip, which brought a...
2025-09-12 14:00:58 +0000 UTC View PostSurprise Attack
While we were working desperately to complete Golfing Greats or Run'n Gun cores for this week, another team member finished reviewing Konami's PCB for Surprise Attack. The PCB turned out to be a cost-saving version of Parodius Da! The Z80 and PCM sound chips had been removed, as well as their ROM chips, leavin...
2025-08-29 18:56:25 +0000 UTC View PostAudio Fixes
Development Update
Work still keeps us busy towards the two next big cores: Run'n Gun and CPS3, with these stepping stones
Add Golfing Greats to JTRIDERS, as it uses the same pseudo 3D chip as Run'n Gun but without a frame buffer
Fix frame buffer on O...
2025-08-15 15:13:52 +0000 UTC View Post
Development Update
NeoGeo Pocket
Thank you for sharing your views in the previous post comments. We decided to spend more time on the NeoGeo Pocket core as a result. The following games are now playable:
Metal Slug (Monochrome version was broken before )
Ogre Battle Gaiden
Last Blade
KoF Battle de ...
2025-07-18 18:34:27 +0000 UTC View Post
Ajax
This week's release updates the beta key. Please remember to copy the new one to your MiSTer/Pocket FPGA.
History
This game, released by Konami in 1987, features a unique mix of 2D vertical-scrolling and 3D-scrolling stag...
2025-07-04 16:20:43 +0000 UTC View PostLighting Fighters
History
A vertical scrolling shooter game released by Konami in 1990, supporting two-player simultaneous play.
Attack items differ between solo and two-player modes, and even the way you respawn changes depending on the mode. The hitbox i...
2025-06-27 18:42:35 +0000 UTC View PostDesert Breaker
Desert Breaker: History
This game, released by SEGA two years after Capcom's Commando II (Mercs), shares a similar style—set on the battlefield, where the player must take down any enemy alone. You can choose from three characters, and up to ...
2025-06-20 15:23:06 +0000 UTC View PostLaser Ghost
In 1990, after Ghostbusters II release in 1989, SEGA released their first light gun arcade shooter: Laser Ghost (if you are thinking of The House of the Dead, that would still take six more years to come alive!). This game takes heavy inspiration from Ghostbusters in the System 18 version, whereas the Master System version presents a di...
2025-06-13 16:30:47 +0000 UTC View PostMetro Cross
History
This side-scrolling action game released by Namco in 1985 is very very simple. It's a race against time as a man runs towards the goal while overcoming traps and obstacles set in a mysterious space. It is unclear whether this project re...
2025-06-06 14:21:12 +0000 UTC View PostThe Return of Ishtar/Genpei
GENPEI TOMA DEN
History
The motif of this Namco action game is based on a joruri work about the Genpei wars of the Kamakura period (...
2025-05-31 07:22:11 +0000 UTC View PostPac-Land
The 45th anniversary of Pac-Man was yesterday. In order to join the cellebration we are bringing a new core compatible with the Pac-Land hardware: JTPACLAN.
History
Released by Namco in 1984. When this game was first planned, it was based...
2025-05-23 14:49:02 +0000 UTC View PostWonder Momo, Hopping Mappy
This JTFriday brings us two new titles to the JTTHUNDR core in beta and the promotion of JTFLSTORY (The Fairy Land Story, etc.) to public core.
Wonder Momo
History
Wonder Momo, one of the Namco Sy...
2025-05-16 13:58:31 +0000 UTC View PostSky Kid Deluxe
Work on the JTTHUNDR core continues, apart from fixing the PCM sound pitch, we add support for Sky Kid Deluxe this week.
History
Sky Kid was released in...
2025-05-09 21:46:55 +0000 UTC View PostRolling Thunder
History
It is 1986, there are 26,573 game centres in Japan, the highest number in history. The Family Computer (NES) was launched three years ago and home video game consoles are becoming more popular, but the quality of games is overwhelmingly better in the arcades.
Namco releases this action shooter game, in which the main chara...
2025-04-25 18:59:03 +0000 UTC View PostBronx (Cycle Shooting)
History
Cycle Shooting is a gun shooting game released by Taito in 1986. There are six stages in total, alternating between horizontal-scrolling and fixed-screen stages. In order to save the kidnapped girl, the player uses guns to finish o...
2025-04-04 15:54:00 +0000 UTC View PostSinden Light Guns, Dokaben 2
DOKABEN 2
Sometimes, information for new game arises that makes them playable on existing cores. This week we bring Dokaben 2, running on the JTPANG core.
History
There are many mangas about high school baseb...
2025-03-21 17:29:47 +0000 UTC View PostSTRATO FIGHTER/RAIGA
The final game on the JTGAIDEN core is a famous shooter: RAIGA. I have looked for other Tecmo games of around this time but they do not seem to operate on this hardware. So the core will support Ninja Gaiden, Wild Fang and Raiga.
History
...
2025-03-14 17:12:49 +0000 UTC View PostWild Fang/Tecmo Knight
One more game for the JTGAIDEN core, which in the previous beta only covered Shadow Warriors (Ninja Gaiden). Wild Fang operates on very similar hardware but adds a small microcontroller (MCU). This MCU serves...
2025-03-07 12:39:43 +0000 UTC View PostLight Gun Action: NY Captor
Last minute compilation problems made this JTFRIDAY a Saturday, apologies about that. And here we are!
NYCaptor
This might be the last game for the JTFLSTORY core: NY Captor. A shooting game from Taito that precedes Operation Wolf. This game is not part of the MAME's driver ...
2025-03-01 09:39:01 +0000 UTC View Post