Daily Yo-kai Watch Factsさんのイラストまとめ

Maiccaa GOGO is a variant of Oh Wheel that originates from Yo-kai Watch World. Maiccaa GOGO has a sticker on his windshield that says, "Oh Wheel". This is the only instance in which a non-localized variant of a Yo-kai has acknowledged its original counterpart's localized name.

Peachnyan, Duriannyan, and Coconutnyan are three unreleased Yo-kai that were discovered within Yo-kai Watch World Memories' Yo-kai Medallium. They are suspected to have been part of a Fruitnyan event that was ultimately scrapped due to the shutdown of Yo-kai Watch World.

Intrudapyon is the only Yo-Criminal to have been designed by a fan.

In episode 91 of the Yo-kai Watch anime, Whisper briefly sports a white jumpsuit and pompadour, likely an homage to American singer and actor, Elvis Presley, who would commonly wear a similar outfit at his performances in the 1970s.

Salarynyan S is the mascot character for LEVEL-5's sales account on Twitter. Salarynyan S's only appearance in official media is as an NPC in Yo-kai Watch World.

Da Vincibana's Soultimate Move from Yo-kai Watch: Puni Puni shows a graphic of what resembles the Vitruvian Man, a drawing by Leonardo da Vinci, who is also who Da Vincibana is directly based off of.

Yo-kai Watch Land, he is referred to as Buffoom. (2/2)

Yodelsen is the only Yo-kai as of this time that is directly based off of the Yo-kai Medallium. Not only does Yodelsen’s main body reside within a book, the staffs that Yodelsen wields resemble the first 8 Yo-kai Tribes’ symbols, and are in the same order as the Yo-kai (1/2)

Blazion can only speak through saying "blaze", however, episode 97 of the Yo-kai Watch anime reveals that by removing Blazion's mane, he is capable of human speech.

Shadow Oroochi is based off of Solid Snake, of the “Metal Gear” franchise.