I'm not sure if this is the correct forum for this topic. It concerns an undumped cartridge and has nothing to do with homebrew and little to do with emulation. If this is the wrong forum, feel free to move it.
The FamicomBox is a hotel unit in Japan that played Famicom games, just like the Super Famicom Box. And also like the Super Famicom Box, it had cartridges made specifically for it, but each cartridge only held a single game and was shaped just like the NES cartridges used in America and Europe. But the CIC was connected to different pins, so NES games would not work on a FamicomBox, although FamicomBox games will work on an NES-101 top-loader (not the NES-001 front-loader). i64X made a video review of it on YouTube
Most of the time, though, FamicomBox cartridges had identical ROM content to the regular Famicom cartridges, so they rarely get dumped because the ROM dumps would be redundant. They don't even have instruction and security ROMs like PlayChoice-10 games do.
However! A few weeks ago, I determined that a game revision that was only ever available for the FamicomBox exists! And currently, that game revision has never been preserved.
The game is Pro Wrestling, or プロレス for short. This was a Famicom Disk System game in Japan, and it was released as a cartridge in America and Europe. It also has a PlayChoice-10 version. But no cartridge release of Pro Wrestling was ever available in Japan, at least not for the regular Famicom; only on the FamicomBox does a Japanese cartridge release exist, complete with the Disk System version's unique title screen.
And, as of 2017-02-17, this unique game revision has never been dumped. It is not available online, anywhere at all. No-Intro does not have it registered. And it certainly is not in the GoodNES set.
As far as I know, Pro Wrestling is the only FamicomBox game with this situation. Even Senjou no Ookami (戦場の狼, Commando), the only Famicom game to use the unique HVC-UN1ROM board, has an identical FamicomBox version, so there is no need to dump a Senjou no Ookami cartridge if you have one. This was verified by actually running the game on an emulated FamicomBox, which compares the checksum with its internal database, and that game has no internal footer like some FamicomBox games, so the database is the only way to verify that game. Pro Wrestling, on the other hand, is not in the database, so it will have an internal footer.
Does anyone with a FamicomBox and a Pro Wrestling cartridge want to preserve it by dumping its ROM and registering it with No-Intro? If you are reluctant to do so because you think that will devalue the cartridge, I will understand, but this is not some obscure competition or test software; all it is is a Japanese cartridge release of a game that is already available on the Famicom Disk System and NES.
This post should not be interpreted as a ROM request. If anyone actually does dump it and post it online, please do not link to it here.