Before you can befriend a Yo-kai you must find them with the Yo-kai Watch. With the Yo-kai Watch's radar, players can track down invisible Yo-kai
Level-5 Shares More Info About Yo-kai Watch 4++ New Quests, Yo-kais, & Multiplayer Mode – NintendoSoup
Yo-Kai Watch 2 Guide - IGN
Yo-Kai Watch Guide - IGN
Walkthrough - Yo-Kai Watch Guide - IGN, yo kai watch wiki
Yo-kai Watch Blasters: Moon Rabbit Crew [Videos] - IGN
Two years ago I remember looking at my old save file and found it corrupted, I come back and IT UNCORRUPTED :D : r/yokaiwatch
Mount Wildwood - Yo-Kai Watch Guide - IGN
Walkthrough - Yo-Kai Watch Guide - IGN
Yo-Kai Watch Blasters: White Dog Squad - IGN
Using the Yo-kai Watch - Yo-Kai Watch Guide - IGN
Tips and Tricks - Yo-Kai Watch Guide - IGN