Everything is protected by exe packers. Not only that, half the games are all hacked to shit. For example, Persona 4 and BlazBlue Chrono Phantasma uses a file encryption on some of the game files that prevent the games from running outside of Nesica. So what he did was take pieces from the PC/XBOX360 versions and hacked the games all up to not try to decrypt certain files.
In his version of King of Fighters Climax, he broke the test menu patching the game. Fixing the test menu is a pretty simple fix, he is just too fucking lazy to do it.
All of those games + more WILL be released in time. Trust me, who do you think he got those games from....
Not only that you will have proper clean dumps of all versions of all the games. Any games that do need a small patch to remove network checks, etc. will also include their original unpatched files right along side. So you never have to wonder, what was done to get the games to work.
Best part though, is it will all be 100% free! You will be able to make as many backups, or copies as you want.
The reason these games are not being released right now, is Taito and the game developers are still making money off Nesica. Not only that, but they are still releasing new games.
So trust me, do not give that douche bag any money, and just be patient. They are all being preserved properly.
As far as the FastIO/RFID goes, I know he admitted the RFID emulator was written by someone else and I suspect the FastIO is also someone else's work.
I'm currently working on developing my own RFID emulator, and the FastIO has already been figured out thanks to
@Dion, another member here who helped me reverse and understand exactly how the driver works.