It is possible to change the language of yokai watch 1, 2 and 3 (Japanese), without CFW. There is some database in which you can see the available languages, especially in the
Yo-Kai Watch 2: Fleshy Souls for Nintendo 3DS
Yo-Kai Watch 2: Psychic Specters - Nintendo 3DS | Nintendo 3DS | GameStop
3ds Yokai watch 1 game nintendo japanese, Video Gaming, Video Games, Nintendo on Carousell
Yo-Kai Watch - 3DS Review
Yo-kai Watch review | Polygon
WIP] Yo-kai Watch 1 Switch English Translation Project | GBAtemp.net - The Independent Video Game Community
3DS Yo-Kai Watch (English) – HeavyArm Store
YO-KAI WATCH (Nintendo 3DS) : Amazon.co.uk: PC & Video Games
Yo-Kai Watch - Nintendo 3DS | Nintendo 3DS | GameStop