Classic Yo-kai, Yo-kai Watch Wiki

Classic Yo-kai (Japanese: 古典妖怪, Koten Yōkai) are a group of Yo-kai hailing from decades or even centuries in the past; in other words, they have been around for a very long time. They first debuted in Yo-kai Watch 2. They are based on yōkai from traditional Japanese folklore, down to having the same name in Japanese in most cases. Originally, they could only be encountered in the past, be it in when searched with the Yo-kai Watch, in Yo-kai Spots, or in the Crank-a-kai from 60 years in the past.

Tengloom, Yo-kai Watch Wiki, Fandom

Mermadonna, Yo-kai Watch Wiki

Jibanyan, The United Organization Toons Heroes Wiki, Fandom

Mermaidyn, Yo-kai Watch Wiki

Yo-kai Watch Land/Unobtainable Medals - The Cutting Room Floor

Yokai Watch - Nintendo 3DS Forum - Page 8

Yo-kai Watch - Wikipedia

Classic Yo-kai, Yo-kai Watch Wiki

EP151, Yo-kai Watch Wiki

Pallysol, Yo-kai Watch Wiki