Is it piracy to play my legally purchased and backed up games on an emulator?
Edit: a lot of people responding to this are accidentally answering the question above. Yes, those are the things they would have fought if they had the money to go up against Nintendo.
To those saying that it is indeed piracy -- pretty sure the law has disagreed up to this point. Note that Nintendo didn't win this suit, Yuzu settled. No legal precedent set (yet).