The game is NBA 2K18, which has been revealed to have new Switch box art with a clear label that says a MicroSD card is required. Nintendo is getting out in front of this issue, revealing the news alongside an actual partnership with SanDisk, which is rather clever.
It's not as if these games won't function at all without the extra storage space. Nintendo makes it clear that portions of the game will work even without an SD card, but which portions will vary from game to game, and clearly for any of these titles, it's going to be wise to have an SD card to access the full release.
Forbes
It's not as if these games won't function at all without the extra storage space. Nintendo makes it clear that portions of the game will work even without an SD card, but which portions will vary from game to game, and clearly for any of these titles, it's going to be wise to have an SD card to access the full release.
Forbes