Machine translation (with minor edits from me) of Nintendo's official earning report Q&A transcript regarding the NFT/metaverse:
So no, Nintendo is not interested in NFT, and doesn't think metaverse is ready either.
Q: What is your approach to the metaverse and NFT? You may already have worked on some aspect of this in "Animal Crossing: New Horizon”. Please tell us as much as you can about the metaverse, which has great potential for the future.
Furukawa: The metaverse is attracting the attention of many companies around the world, and we believe that it has great potential. In addition, as the metaverse is introduced in the media, software such as "Animal Crossing" is mentioned as an example, and I am interested in that sense.
On the other hand, it is not easy to define what kind of surprises and fun can be provided to customers by the metaverse at this point in time. As a company that provides entertainment, we place the utmost importance on how we can deliver fresh surprises and fun to our customers. If we can find a way to communicate our "Nintendo approach" to many people in an easy-to-understand manner, we may be able to consider something, but we do not believe that this is the case at this time.
So no, Nintendo is not interested in NFT, and doesn't think metaverse is ready either.