@Yugonibblit , I'm not sure if you're interested, but I just figured out that save data on the switch is region locked. I have poi from the eshop, and I have a cartridge of poi from a different region. it doesn't detect my save. I checked first to make sure the save was present with eshop version. it was. also, a second poi game is displayed on the home menu suggesting that the title id is different as well. I've heard that some dlc is also region locked such as splatoon 2's. well, that sucks for me at retaining saves. region-free doesn't seem to mean much then. I couldn't find a concrete answer on this, because very few people have the same game from different regions. digital to retail saves work, but different region saves don't. edit: my cart poi says USA on it, but it's not. I figured out a quick way to determine region (if possible). coins won't be redeemable on an account when the game is from a different region. that seems to be a problem especially when the system is supposed to be region free. I think you have to make a separate account for a different region just like with the playstation, so I guess they're alike there.