Yo-kai Watch 4++ is an updated version of Yo-kai Watch 4 with new content for the game, there will be new areas like "Blossom Heights" and “Cauldron-Boiled Hell”, a new Yo-kai to befriend, a new boss and a new multiplayer mode.
Yo-kai Watch 4++ NSP, XCI ROM v2.2.0 [Update] Download
2019 Yo-kai Watch 4++ Nintendo Switch game (Japanese Version)
Yo-kai Watch Movies, Yo-kai Watch Wiki
Level 5 Yo-kai Watch 4++ for NINTENDO SWITCH REGION FREE JAPANESE VERSION : Video Games
Yo-Kai Watch 4++ Announced for PS4 and Switch - Niche Gamer
YO-KAI WATCH 4 ++ ♢ Neue Quests, Yokai und Gebiete ♢ Let´s Play Yo-Kai Watch 4 #110 「Switch/Deutsch」
Yo-kai Watch 4++ details multiplayer mode, new quests, and more new yo-kai - Gematsu
Yo-Kai Watch 4 [Articles] - IGN
Yo-kai Watch 4 - The Cutting Room Floor