Daily Yo-kai Watch Factsさんのイラストまとめ

The scrapped Yo-kai Dekin-chan is based on the character Dokin-chan from the "Anpanman" series.

Zomboy was Nyanses II's owner while he was still a human.

Enerfly and Enefly have the exact same pronunciation of their names in Japanese, "Zekkouchou". However the "Zekkou" in Enerfly's name is in hiragana and the "Zekkou" in Enefly's name is in katakana.

Dazzabel and Gutsy Bones are the parents of the Yo-kai Nummskull.

Skulk is based on "Bishagatsuku", a real folklore youkai native to the prefecture of Fukui that was said to have chased you down dark roads at night.

Elna Amami uses the M-Watch to transform into Elzemekia and Zodiaraia, however what the M stands for has remained a mystery. Fans have speculated that it means "Mashoujo".

Sternyan's design is based off of Jibanyan's Japanese voice actor, Etsuko Kozakura.

Episode 121 of the original Yo-kai Watch anime reveals that Tattletell was a spy before she died, and her Japanese catchphrase "ban ban" comes from the sound a gun makes.

Bousou Zazel's tentacles at the bottom of his body are a reference to normal Zazel's boss form that has the same tentacles.