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 ++ ♢ Neue Quests, Yokai und Gebiete ♢ Let´s Play Yo-Kai Watch 4 #110 「Switch/Deutsch」
Level 5 เปิดตัว Yo-Kai Watch 4++ - เกมถูกบอกด้วย v.2
Yo-kai Watch 4++ opening movie - Gematsu
Yo-Kai Watch 4 [Articles] - IGN
Yo-kai Watch 4 lets you switch between humans and yo-kai in battle - Gematsu
Yo-kai Watch 1 and Yo-kai Watch 4 being re-released in Japan with, yo kai watch 5
Yo-kai Watch 4++ Announced For PS4 And Switch, Releases In Japan On December 5, 2019 - Siliconera
Yo-kai Watch 4, Yo-kai Watch Wiki
Yo-kai Watch 4++ details multiplayer mode, new quests, and more new yo-kai - Gematsu
Yo-kai Watch 4++ Announced For PS4 And Switch, Releases In Japan On December 5, 2019 - Siliconera
Yo-kai Watch 4 - The Cutting Room Floor