I think... think ( it's just my suppose only) the game engine must be seems like virtua fighter 2 ( same hardware, same company, year after....)
Well, i have psn version VF2, but config file of psn classics game is differernt, and more.... NPUD30928 (Vf2) made not like all ps2 classics game cause didnt have CONFIG file in USRDIR folder. I think it is made like emulation of arcade model 2 rom cause pkg has file rom.psarc - 16 mb. And rom for MAME\model 2 emulator size is nearly 19mb....
But anyway, it's all has no metter, cause i coldn't get config from it