Artwork of Jibanyan's Lightside and Shadowside forms.
Shadowside Yo-kai (Japanese: シャドウサイド妖怪 Shadou Saido Youkai) are a type of Yo-kai that have two different forms which are Lightside (Japanese: ライトサイド Raito Saido) and Shadowside (Japanese: シャドウサイド Shadou Saido). They regularly appear in the Yo-kai Watch Shadowside series and are featured in Yo-kai Watch 4.
Some Shadowside Yo-kai are older forms of existing Yo-kai like Jibanyan, which can have drastic appearance or personality changes in comparison to their original self. They are usually found in the future, but some of them hail from different time periods or dimensional worlds.
Lightside and Shadowside Yo-kai forms are interchangeable, and can be summoned in either form with Yo-kai Keystones and via the Yo-kai Watch Arcane by scanning the ark on the watch on the form they want to be summoned in.
Overview[]
Lightside and Shadowside forms are two different yet related appearances most Yo-kai can assume either willingly or through the use of the Yo-kai Keystones and the Yo-kai Watch Elda by its accepted human.
Lightside forms are regularly used by Yo-kai outside of battle in most cases; as this form serves as the new standard form for them in a similar manner to original Yo-kai. As such, it allows for normal communications with humans, for it has a much friendlier physical appearance. Shadowside forms, on the other hand, are mostly used for combat, and as such most Yo-kai in this form assume a much fiercer-looking and monstrous appearance, in addition to being more suited by combat. In both forms, the voices, as well as some personality traits of most Yo-kai, are notably different from each other.
In some occasions such as Jibanyan, some Yo-kai can revert to their original selves upon experiencing a strong influx of memories related to their previous selves, implying that the transition can be reversible, albeit temporarily.
The phenomena of Lightside or Shadowside forms began at some point in the 30 years prior to the Shadowside movie and series; however, the exact circumstances, as well as the nature on how the transition began, are so far unknown.
Notably, Yo-kai from the original series (with some exceptions like Slimamander/Sly), retain their original names, and simply distinguish each form by adding Lightside or Shadowside depending on it. Yo-kai which first appear in the Yo-kai Watch Shadowside series (with exceptions like Tidynator) have two different names to distinguish each form.
In the games[]
In Yo-kai Watch 4, the mechanics are used in the following ways:
- When viewing a Shadowside Yo-kai in the Ukiukipedia, the R joystick to can be used change forms.
- When in battle, if a Yo-kai is in its Lightside form, it can change into Shadowside via pressing X+A while playing as it with a full Soultimate gauge, after which, it will revert after a while. While in their Shadowside forms, the Yo-kai can unleash a Soultimate via pressing X+A again.
List of Shadowside Yo-kai[]
Onnen tribe[]
| Lightside | Shadowside | ||
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| Blizzaria | Blizzaria | ||
| ??? | 
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??? | 
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| Sekka no Fubuki-hime | Sekka no Fubuki-hime | ||
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| Hyakki-hime | Hyakki-hime | ||
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| Himoji | Himoji | ||
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| Pakkun | Gabriel | ||
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| Mushbarber | Kirisaki Joker | ||
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| Atsushi Kamamoto | Kamadouma | ||
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| Leon | Dr. Chameleon | ||
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| Unchikuma | Unchikuma | ||
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| Sebas-chan | Jeannie | ||
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| Momy | Hitotsuri Momi-no-ki | ||
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| Chiyoko | Valentina | ||
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| Yamanbaa* | Yamamba | ||
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| Kyunshii | Zukkyunshii | ||
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| Hare-onna | Ame-onna | ||
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| Kakurenbou | Inaiinaibaa | ||
Goriki tribe[]
| Lightside | Shadowside | ||
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| Merameraion | Merameraion | ||
| ??? | 
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??? | 
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| Sakigake Merameraion | Sakigake Merameraion | ||
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| Rai Oton | Rai Oton | ||
| ??? | 
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??? | 
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| Todoroki Rai Oton | Todoroki Rai Oton | ||
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| Orochi | Orochi | ||
| ??? | 
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??? | 
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| Hakuryu Orochi | Hakuryu Orochi | ||
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| Kage Orochi | Kage Orochi | ||
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| Tsuchigumo | Tsuchigumo | ||
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| Bushinyan | Bushinyan | ||
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| Shurakoma | Shurakoma | ||
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| Jii-tan | Satan Claus | ||
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| Choky | Shiomaneki | ||
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| Saya | Makenki | ||
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| Itashikatanshi | Yamuwoen | ||
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| Daniel | Big Danny | ||
Omamori tribe[]
| Lightside | Shadowside | ||
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| Komasan | Komasan | ||
| ??? | 
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??? | 
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| Koumou no Komasan | Koumou no Komasan | ||
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| Komajiro | Komajiro | ||
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| Seiryuu | Seiryuu | ||
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| Ogama | Ogama | ||
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| Tsuchinoko | Tsuchinoko | ||
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| Bancho | Basher | ||
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| Honmaguro-taishou | Neptuna | ||
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| Ikarin | Gesodrill | ||
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| Semicolon | Bugaboo | ||
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??? | 
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| Suu-san | Suu-san | ||
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??? | 
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| Zashiki-warashi | Zashiki-warashi | ||
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| Yamanbaa | Yamamba* | ||
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| Chokichi | Yamikichi | ||
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| Rai-chan | Raijin | ||
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| Fuu-kun | Fuujin | ||
Mononoke tribe[]
| Lightside | Shadowside | ||
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| Jibanyan | Jibanyan | ||
| ??? | 
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??? | 
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| Mafura Jibanyan | Mafura Jibanyan | ||
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| Kyubi | Kyubi | ||
| ??? | 
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| Kosen Kyubi | Kosen Kyubi | ||
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| Inugami | Inugami | ||
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| Lucky | Dogman | ||
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| Inari | Tatarigitsune | ||
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| Shibumenken | Menkueater | ||
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| Usakichi | Bunny Trap | ||
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| Gusto | Kaibyou Kamaitachi | ||
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??? | 
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| Karasu Tengu | Karasu Tengu | ||
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| Tamamo | Tamamo no Mae | ||
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| Uribou | Inosasaou | ||
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| Hamham | Aburaham | ||
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| Doyapon | Doudanuki | ||
Tsukumono tribe[]
| Lightside | Shadowside | ||
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| Ungaikyo | Ungaikyo | ||
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| Charlie | Ghostcycle | ||
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| Hot Pot | Shiryou no Dokudoku-nabe | ||
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| Jinta | Jingeki | ||
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| Tidynator | Tidynator | ||
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| Filmlin | Eigalien | ||
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| Hana-chan | Ohana-san | ||
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| Anzen-bouya | Nitanita-san | ||
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| Shield of Brightness | Darkness | ||
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| Kantaro | Jihanki | ||
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??? | 
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| Narikama | Narikama | ||
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| Kiborikkuma | Onikuma | ||
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| Kezurin | Jinkotsukezuri | ||
Uwanosora tribe[]
| Lightside | Shadowside | ||
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| Junior | Burning Dragon | ||
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| Junior | Blizzard Wolf | ||
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| Sly | Slimamander | ||
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| Super Sly | Mitsumata Ghidorah | ||
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??? | 
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| Kappa | Kappa | ||
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| Wakame-kun | Wakame-kun | ||
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| Konbu-san | Konbu-san | ||
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| Mekabu-chan | Mekabu-chan | ||
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| Umataro | Umazura | ||
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| Hi no Shin | Hi no Shin | ||
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| Becchan | Nuttarabeccha | ||
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| Dameboy | Zettai Guardman | ||
Trivia[]
- From SS033 to SS036, the Shadowside Yo-kai that were causing trouble were influenced by the Gloom.
- Before Yo-kai Watch 4 was released, there was originally no term to distinguish the Shadowside Yo-kai and the original Yo-kai. The Ukiukipedia makes them fall under the same category as Rare Yo-kai.
See also[]
Other Yo-kai Types[]
Similar Elements[]
In other languages[]
Lightside[]
| Language | Name | Meaning |
|---|---|---|
 French
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Forme Aurorale | Aurorale is from Aurore (Dawn) |
Shadowside[]
| Language | Name | Meaning |
|---|---|---|
| French
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Forme Crépusculaire | Crépusculaire is from Crépuscule (Dusk) |