Hi
i'm using on my Darksoft Muticart MVS the SNK vs Capcom Chaos Plus rom: it has 8 hidden characters permanently unlocked (see the blu lines in the imag below) but i don't know how to unlock the 4 bosses (see the red lined into the picutres above):
https://i.postimg.cc/qqrdtmrn/Cattura.png
I...