Daily Yo-kai Watch Factsさんのイラストまとめ

Komiger's in game model from Yo-kai Watch 1 and 2 and silver frame medal contain the error of not including the white muzzle around his face from his official artwork.

Jinpei has the most Yo-kai Hero forms out of anyone from the YSP club, those being Kengo Benimaru, Wild Boy, Bluemoon, Earth Walker, Earth Walker NOA, Earth Walker NOA Armored, Black Cat, Shikkokumaru, Kengo Benimaru (Seiken Version), Momotaromaru, and Yoroimusha Benimaru.

The Food Item, Gorigori-kun, from Yo-kai Watch 4, is a reference to the popular Japanese popsicle brand, Garigari-kun.

Dragon Lord (YW02-065), Elder Bloom (YW03-046), and Firewig (YW03-064), are the only 3 Yo-kai Cards that were banned from play in official Inspirit Card Battle tournaments.

Onsen Komajiro is the only Yo-kai to be directly holding an in game Food Item in their official artwork, in this case being the Fruit Milk item.

Jibanyan is 70 centimeters (approximately 27.5 inches) tall, making him shorter than an average 2 year old human child.

Robonyan 28's name and appearance are based off of the character Black Ox from the "Tetsujin 28-go" series.

Komajiro's name and appearance are based off of the character "Shimajiro", a young tiger from the kids anime of the same name, "Shimajiro".

Rongo Swirll's Japanese name, Kaminarasu Goro, is based off of former Japanese actor and singer, Yujiro Ishihara.

Despite Clock Lady making an appearance on posters for the Y School Heroes movie (M06), her initial debut is in episode 4 of the Y School Heroes anime.