Posted by exodus on February 08, 2022 at 17:58:21 EST in reply to What is the top piece of some Japanese NGPC cartridges used for? I see it in pictures sometimes and can’t figure out what the deal is. from MHC.
I never really looked into this. Obviously it slots into the notch on the top of the cartridge... I bet it's in the manual if I had that handy! My best guess is it's to hold the dongle on the wireless communication thingie. It's just about the right size, it looks like it's meant to hold a cylinder, seems like the thing to me. See inside:
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