This post is here just in case Ross didn't get my email. Without further ado, here we go. I would like to bring to your attention a trilogy of games released only in Japan made by Cybertech Custom for a number of platforms, barring the last one, which is a PC-FX exclusive. They star the company mascot, Chip-chan, which is what loosely ties them together. They include:
-Carat(a Columns clone from 1992 for the PC-98 & X68000)
-Cyberblock Metal Orange(an Arkanoid/Breakout clone released the same year as Bip Bop II & III, also for the PC-98 & X68000, & believe me, if Bip Bop II & III have the best writing in a Breakout clone, than this has the best OST of any Breakout clone.)
-Chip-chan Kick!(a Snow Bros. clone that plays similarly to Arcade America & Hotel Mario, but much more polished, & a PC-FX exclusive released in 1996. This is what most likely brought Cybertech Custom under in the first place, due to the PC-FX's failure, making these three games abandonware).
Someone who might help you in the realm of PC-98, X68000 & PC-FX emulation is a Youtube & Deviantart user named Ruko Michiharu. She's an outright expert on such fields as obscure Japanese computers & consoles.
She's even made her own tutorials on PC-98 emulation. Her format could make for a perfect cameo in your Game Dungeon series. Have a look-see:
& she covers Video Game tunes on the Turbo Grafix 16 & Game Boy chips. You could ask her to cover the Nyet III intro & ending themes if you want to. Again, have a look-see:
& that's about it. I sincerely hope you take these requests into careful consideration. Take care, as always.
Regards, WretchedChild88 Productions.