> We'll have to check the build date given on boot screen to see if it's a newer > revision or just the same for another region.
will see soon, I hope the game itself will be somehow different.
in general - I suspect there was made not small number of regional NAOMI game releases, on cartridges, but we don't know they exists because cartridges looks all the same. so if there is chance - please check BIOS ROM test sums and compare with already preserved set(s).