When i said first revision i meant the first revision of the cps1 pcb that were ever made. Forgotten worlds, ghouls n ghost and strider all got this first revision. If there is another revision pcb for this game, ive not yet seen one, but capcom did have a habit of making factory conversions. Ive seen strider and ghouls and ghost factory conversions but oddly enough not forgotten worlds.
These first revisions pcbs always seem to sell for crazy money on yahoo. A marked difference compared to factory conversions. ( or sometimes mistaken with operator conversions lol. Capcom eprom labels were printed on foil backed paper so scratching it to see foil underneath was a fair sign that it was factory conversion ) With ghouls n ghost, there were even blue socketed versions before the all black ones.