It seems complete with box to me. How should this 4 player kit be more complete?

It seems complete with box to me. How should this 4 player kit be more complete?
The person who sold it to me had hesitated to tell me that it was very rare that it was a prototype (he finally sold me all his pcb stock including this kit)wow, never seen that, it is a really scarce item to find.
I am using unibios with neo SD on mv1c.The problem is time and space at the moment. You do have to use a compatible BIOS for the game to detect the adapter: https://github.com/mamedev/mame/blo...e4b0dad29f41/src/mame/neogeo/neogeo.cpp#L7287
No idea - it seems to be less of a region issue, and more that only some motherboards supported it. I'll have to re-check unibios, but I only got the adapter detected when I used the correct bios.Is bios an issue if the Neo SD is able to force change game region?