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hello. I'm sorry if ever discussed this topic. While playing AtomisWave Metal Slug6, which was fixed for Naomi, a graphic issue occurs when I obtain and throw 'fire' among the bomb items in the second stage. The same problem occurs with Naomi 1 and 2, multibios, and regular bios. Of course, I...

Super rare. Non working order parts or repair. Instructions, manual is a copy $250 $200 + ship $50

hello I only patched games that can run on mame using a debugger, I would like to get some hints on how to bypass patch for a game that won't boot. The game I want to patch is 'Spikeout'. To find the part in the main CPU's code that accesses the location (fe1a0000~fe1a001f) of the 315-5881...

hello. I wanted to convert the Namco system11 games to Dancing Eyes, so I applied a patch to bypass keycus in mame and succeeded in booting and running the game. However, keycus is used to convert hexadecimal to decimal, which displays the remaining time during gameplay, so when I run patched...

Radiant Silvergun - Perfectly working, converted $120 + shipping $10 Shienryu - Perfectly working, converted $120 + shipping $10 Ikaruga - Perfectly working, converted $150 + shipping $15

Perfectly working, $350 conversion, $20 shipping.

Working Perfectly, Conversion, faster loading time. $200 + shipping $15 (Additional label provided for use when changing to blue cartridge case)

Working Perfectly, Conversion, Good shape. USD430 + shipping USD20

Virtua Cop 1 required a CRT. I prefer LCD, so it was annoying to have to install a CRT to play Virtua Cop 1. So I created a PATCHED ROM that can be played without a CRT. In the video, it is played with an analog stick, but 'GUN IO TYPE2' also uses the same 5V signal as the analog stick, so GUN...

hello. I am making an Ikaruga cartridge, and when I make it with a cartridge that does not have the x76f100 chip at the ic37 location, it stops with error 04 displayed on the screen. Is it possible to bypass the x76f100 check by modifying the binary of Ikaruga's ic22?

View: https://www.youtube.com/watch?v=CheYl23PnNw I bought a SYSTEM32 board that had a sound problem. Repetitive noise is played continuously and no sound effects or BGM are played. 5V and 12V are normal, and I double-checked that the IC35 and IC31 EPROMs were burned correctly. I have...

hello. I have a Virtua Striker 2 bootleg security board and a Dynamite Deka bootleg security board. These boards used FPGA chips. So, I am wondering if it is possible to extract the data inside this FPGA chip and modify it so that it can be used to decrypt other games by inserting the 'key' of...

hello. I recently bought the Silent Scope 1 PCB. When I turn it on Nothing is displayed on the screen, 'RA-PR-CH' is displayed on the 7-segment LED, and after the memory test, 'Er40' is displayed repeatedly and does not boot. If anyone knows what causes ER40, please help.

hi. I have a problem with my Model 3 board, so I need help. When I turn it on, I see strange patterns all over the screen and the text is messed up. And I can't proceed any further on that screen in the attached screenshot. The graphics board is fine. If you swap it with another CPU board, the...

Hello. I've been collecting SEGA model series boards for a long time. The model board is a board made nearly 30 years ago, so I've been thinking about how to preserve it for a long time. I've found that a kind of "rechargeable battery" that exists to hold data in NVRAM's volatile memory, called...