I wrote to my friend superrsonic a few days ago to see if he would compile the MAME2000 core for hexaco because there are several games that can't be launched by other cores... still no response from him. But don't lose hope, hahaha.
I'm separating the games not by manufacturer (I already did that with more than 40 companies... don't ask me for details because I deleted them, although I still have some saved). But I realized that to work in Wiiflow it's better to separate the games by genre, that way you get to the game faster, and that's what I'm doing for both horizontal and vertical arcade games in Wiiflow... a lot of work, as you surely know. I'm making it possible to launch the same game with normal difficulty and, in the same category, that same game launched by the same core with hardest difficulty, all with a single button. This applies to all FBA games except for the FBA Alpha games themselves, which I believe don't allow access to the difficulty menu, and the CPS1 games (the NeoCPS1 and FBNEO CPS1 games do). If anyone knows how to access the difficulty settings to change it, I would appreciate it if you could tell me so I can implement it in Wiiflow.