Official update instructions can be found on Nintendo Support , though these apply primarily to official Japanese eShop accounts.
The text you provided appears to be a file name or a search topic for on the Nintendo Switch, specifically referencing the base game (NSP), the version 2.2.0 update, and its associated DLC content. What is Yo-kai Watch 4++? Yo-kai-Watch-4-PuraPura-NSP-UPDATE-DLC__x27_s-R...
: To fully experience the "++" content, players typically need the base game plus specific DLC files. Some users report needing up to 13 DLC components to enable all features in certain environments. Official update instructions can be found on Nintendo
: Officially, the product only supports Japanese and Chinese (Simplified and Traditional). Helpful Resources for Players : To fully experience the "++" content, players
Yo-kai Watch 4++ is an enhanced version of the original Japanese RPG released by Level-5. The "Pura Pura" portion refers to the multiplayer mode and additional DLC content included in this definitive edition. Key Technical Details
Installation troubleshooting and modding tips on the Yo-kai Watch Subreddit .