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 ++ Announced for PS4, Switch, Adds Online Co-op, New Maps and Characters
New screens and art for Yo-Kai Watch 4++ released, plus info on multiplayer, new Yo-Kai, quests, and more, The GoNintendo Archives
Yo-kai Watch 4++ details multiplayer mode, new quests, and more new yo-kai - Gematsu
Yo-kai Watch 4 and Yo-kai Watch 4++: Software updates (latest: Ver. 2.2.0) - Perfectly Nintendo
Yo-Kai Watch 4++ updated to Version 2.1.3, The GoNintendo Archives
WIP] Yo-kai Watch 4 ++ Switch English Translation Project
Yo-kai Watch 4++ announced for PS4 and Nintendo Switch in Japan - LootPots
Yo-Kai Watch 4++, YW4++
Yo-kai Watch 4++ (2019)
Yo-Kai Watch 4 [Articles] - IGN
Chinese Nintendo on X: This is what all of you have been waiting for: Yes, Gutsy Bones has been redesigned in the Chinese release of #YokaiWatch 4++, as many have expected. He
Yo-Kai Watch Tried To Rip Off Pokémon And Failed
Yo-Kai Watch 4++ - 010086C00AF7C000 · Issue #4494 · Ryujinx/Ryujinx-Games-List · GitHub
YO-KAI WATCH 4 ++ ♢ Neue Quests, Yokai und Gebiete ♢ Let´s Play Yo-Kai Watch 4 #110 「Switch/Deutsch」