Previously, Nintendo, Microsoft, and Sony had announced that game companies would be required to publish loot box odds for their consumers. Nintendo has now given an official, follow-up statement with regards to this specific situation:
At Nintendo, ensuring that our customers can make informed choices when they play our games is very important. As part of our ongoing efforts in this area, Nintendo will require disclosure of drop rates in Nintendo Switch games that offer randomised virtual items for purchase, such as loot boxes. This requirement will apply to all new games and includes updates to current games that add loot boxes through in-game purchases.
“We also offer tools like our Nintendo Switch Parental Controls mobile app, which empowers parents to choose what works for their family, including managing in-game purchases and setting playtime limits.”