I haven't been anywhere near the covid system for the enter lockdowns. So I don't know what a Japanese card looks like, or if there are any QR codes or other verification that would go into producing a realistic fake.

Also on principle, i don't want to submit a fake card. It shows that I'm complicit in cucking to the governments mandates, which is going to allow them to say, "people bent over an did what we ask, let's keep pushing for more". I'll take my chances being exiled indefinitely if the US is going to enforce this level of tyranny.