Originally Posted by
nusilver
from what i recall, the stamps only mean what factory the games were assembled at, not which revision.
I recently received Kaboomer's copy of Super Mario RPG - one that works on a Supaboy. I don't have my Supaboy to test right now, but I can confirm from watching his video that it's the same cartridge. Having said that, when I opened up both copies of the game that I have, the insides are using the same PCB revision, though the chips look slightly different. I honestly don't know how to differentiate between a clone-compatible copy and a non-working copy. Sigh.