There's a AAA game from a major studio on Nintendo's store right now that can't be completed due to a game-breaking bug (the new Knights of the Old Republic II port), so Nintendo's obviously not doing that much of their own QA for things they're selling on their store.

Early on in the Switch's lifespan, the GameGrumps decided to check out the "Worst rated games on the Nintendo store". For reference, these are two games that Nintendo gave the green light to sell in their store:

https://www.youtube.com/watch?v=cGtanhZvjcM

https://www.youtube.com/watch?v=dFJwO7AbfCk

They've actually published games with Nintendo before, so they discuss how such terrible games were allowed on the shop in the second video

Whether or not something is acceptable quality is not up to Nintendo, right? Otherwise it would be a weird conflict of interest that Nintendo would set the standards for their own store with no recourse for the consumer.

"acceptable quality" is very broad and subjective. I don't think you'll have much luck convincing a court a game is objectively bad. (unless the game actually crashed like where somebody mentioned in KOTOR)

If you take a game back to a major retailer like Target or Big W, they won't accept it with the seal broken unless you tell them there is something wrong with the physical disk or cartage. They won't accept a return if you just tell them you didn't like it. (in my experience - also not an expert on this either)

My point is just that their broad "we don't accept returns, ever" policy in the UK is not legal in some jurisdictions, and nothing about returning a game because you don't like it. How that's interpreted is, of course, a matter of convincing the courts but the language Nintendo uses in the UK is not applicable worldwide, as many other companies have been raked over the coals for trying to do the same. Note that the wording on the UK page definitely excludes things like KOTOR II from being returned!

"Its not an open store after all."

The Nintendo online market pretty much has no oversight anymore. They don't do any careful pruning of shovelware these days.

At a bare minimum, you can buy games on the Switch with incomprehensible English translations:

https://legendsoflocalization.com/this-be-bad-translation-19...

NES games often had some pretty rough translations, but I can't think of a single game in that era that was this garbled.

These are bad but seem to be at the level of "All your base are belong to us".

Which comes from a Sega game. Not that the NES was really better, it still has classics like "a winner is you!"

It’s open enough because I’ve demanded a refund for a total dog shit game and received it. And I’m American.

Nintendo's Lot Check doesn't really establish anything. Nintendo Switch's game store is flooded with games that don't really work as the testing was minimized.