When the evil Kin and Gin steal the Yo-kai Watch from Nate Adams one night to help their master Dame Dedtime prevent humans and Yo-kai from being friends, Nate finds help in the Yo-kai Hovernyan who takes Nate, Whisper, and Jibanyan back in time 60 years to when the Yo-kai Watch was first invented by Nate's own grandfather, Nathaniel while he was a kid. Together, the two boys fight Dame Dedtime and her evil Wicked Yo-kai minions to save the world from her evil plans.
Differences Between the Game and Movie Adaption
- There is no war relating to the Bonies and Fleshies at all, even though Toadal Dude and Arachanus make an appearance in the climax.
- In the movie, Dame Dedtime meets Nathan and the gang at a place in Old Harrisville after they meet Master Nyada rather than at Flatpot Plains.
- In the game, Nathaniel only calls all of his Classic Yo-kai friends, as opposed to many other Yo-kai like Leggly and Chippa in the movie.
- In the game, after defeating Kin and Gin for the first time (Which is also not in the movie) Nate goes back to the present and fight Eyeclone, and then come back to the past because of the Bonies vs Fleshies war. In the movie, he does not go back to the present until after Dame Dedtime was defeated.
- In the movie, Tattletell inspirits Dame Dedtime during the climax in order for her to tell what happened when she was still a human. In the game, the backstory is told via a Psychic Specters-exclusive request.
- Dame Dedtime/Dame Demona
- Castelius I
- Toadal Dude
- Master Nyada
- Moximous N
- Castelius I
- Toadal Dude
- Master Nyada
- Moximous N
- Papa Windbag
- Sergeant Burly
- Lie-in Heart
- Supoor Hero
From October 29, 2014, select McDonald's fast food chains in Japan were temporarily transformed into real life Mog Burger restaurants for a limited time, with Yo-kai appearing all over the decorations and a unique Mog Burger-themed Quarter Pounder being served.
A manga adaption of the film, illustrated by Noriyuki Konishi, was released in December 2014.
In France, The Yo-kai Watch movie had a theatrical nationwide release with previews at selected locations on August 6, 2017 and across cinemas on August 9, 2017. People who attended the event were given a Hovernyan Yo-motion Medal and a paper Jibanyan visor.
The film set a new record for Toho for advance ticket sales, with 721,422 sold by October 26, reaching 840,000 by late November and more than 1 million by mid-December.
The film was number-one on its opening weekend, with ¥1.629 billion, a record for a Japanese film, previously held by Studio Ghibli film Howl's Moving Castle. It reached ¥5 billion by its third weekend, ¥6.54 billion by the fourth weekend and ¥7 billion by the sixth weekend. The film was the highest-grossing Japanese film at the Japanese box office in 2015, with ¥7.8 billion.
The Blu-ray and DVD were released on July 8, 2015 in Japan, with both reaching the number-one place on the animation rankings, with 14,090 and 84,932 copies sold, respectively. By its thirteenth week, the DVD had sold 128,810 copies.
- According to the film's Japanese release date, this film is likely located between EP049 and EP050.
- After Whisper's Secret Past, Kin and Gin don't appear in the series ever again. Also, Nate doesn't ever make an appearance and the beginning/ending scenes take place at night.
- When Komasan was summoned at the climax, he had his green sling pouch that was given by Komajiro in The Koma-Santa Clause, and was worn from that point on in the anime.
- In the movie, Nate only uses his original watch but recognizes the Model Zero Watch when it reappears, as he obtained his in The New Yo-kai Watch, which means that both disappeared. In addition, Nathaniel gives his to Nate at the end.
- He summons Kyubi, who he did not befriend until Westward Yo!.
- For promotion in Japan, the first five million attendants received an exclusive Darknyan Medal.
- A similar thing happened in the United States, where attendants got a Hovernyan Medal each. They were later used for the Watch & Win contest promotion across their YouTube channel.
- This movie was planned to be shown at select theaters across Canada, but it got cancelled for unknown reasons.
- In the Japanese version, Nate apologizes to Whisper saying, "Sorry sorry I'm so sorry!" referencing So-Sorree.
- Not counting the cameos of M02, this is the movie with the most Yo-kai make an appearance.
- After the credits rolled during theatrical releases across North America, Legend of Poofessor was shown.
- Whisper says that he always have his weapon with him.
- This movie features the first use of several Yo-kai's Soultimates.
- This is the last time Nate summons Jibanyan with his normal Yo-kai Watch.
- This is the first time someone other than Nate summons a Yo-kai.
- This is the only time where Brave Yo-kai are summoned with the Yo-kai Watch Model Zero.
- This is the first time when Cadin, Noway, Dandoodle and Kyubi are summoned..
- During the battle with Dame Dedtime's more monstrous form, both Nate and Whisper break the fourth wall whereas Whisper says that they turned her into a CGI monster to "make the movie more exciting" while Nate states this is the "final act."
- Negasus appears in the closing song, even though he never appeared in the anime before his debut episode aired in Japan.
- After the credits, there's a teaser trailer for M02 feaaturing Nate and Master Nyada that plays homage to Star Wars.
- After the movie made it's debut in the United States, it was mentioned that a DVD release would be coming later in 2016. However, the English dub of the movie is yet to get a proper physical release as of now.
- Hovernyan, Mermaidyn, Eyesoar, Blandon, Pittapatt, Tongus, Singcada, Castelius I, Frostina, Chummer, Everfore, Arachnus, Gnomey, Toadal Dude, Reuknight, Sushiyama, and Buchinyan made their debuts in the main anime series, While Blowkade, Chymera, Furgus, Chippa, Predictabull, Leggly, Mudmunch, Nird, Slitheref, Miradox, Master Nyada, Kumamon and Moximous N are exclusive in the anime. (Blowkade made a cameo in EP095, and Sushiyama mades a shadow cameo in EP025).
- The original movie featured an unique opening playing an alternate version of Gera Gera Po. Instead the dub just features the english opening song Yo-kai Watch feat. Swampy Marsh with new lyrics.
- The scene of Nathaniel Adams beating the Wicked Yo-kai that inspirited Whisper has been cut short, likely because it looked violent.
- When Nathaniel, Nate, Whisper and Jibanyan hear Dame Dedtime from far away, it was implied that Old Springdale was a short way away from Harrisville.
In The English Dub
- None of the Z Medals or the Classic Yo-kai's Medals had the Yo-Motion symbols added to them.
- When Reuknight was summoned, the Model Zero didn't announce "Summoning Brave."
- The 'G' on Moximus Mask's helmet was never removed in the movie, but it was replaced with the 'M' used in Yo-kai Watch 2 for the Moxie-enhanced Soultimates.
- During the scene where Hovernyan calls Nate and Nathaniel's attention after Dame Dedtime turns into Dame Demona, the subtitles refer to him as Robonyan, in spite of Robonyan not even appearing in that scene.