Puraimu

Wow, it's kind of crazy they would bother with serial numbers. Thanks! Now I'll have even more nonsense to OCD over, haha.

Aside from the expected game-related paperwork, GBA games would usually come with a Nintendo Power subscription insert. Can these vary depending on when a particular copy of the game was printed? When browsing for games on eBay, I often see the same game include a different slip. Sorry if this is the wrong subforum to ask this.

Oh, I'm sure there are cheap Chinese copies out there, but those don't usually come boxed. There are quite a few GBA games that are hard to find boxed, let alone in pristine condition or even sealed. Which is why I'm surprised to see so many sealed copies that are not priced at $100+. This, for example, doesn't really scream 'fake' to me: https://www.ebay.com/itm/Advance-Guardian-Heroes-GBA-2004-brand-new-factory-sealed/164735874069?epid=30951687&hash=item265b05f415:g:5KUAAOSwpe5gPnWh

I've been looking for a copy of Advance Guardian Heroes for the GBA on eBay, and there seems to be a surprising number of sealed copies, some sellers even have multiple. Is it an oft-bootlegged game or something?