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Yo-kai Watch 4

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Title Screen

Yo-kai Watch 4

Also known as: Yo-kai Watch 4: Bokura wa Onaji Sora wo Miagete Iru (full subtitle), Yo-kai Watch 4++ (JP rerelease/CN)
Developer: Level-5
Publisher: Level-5
Platforms: Nintendo Switch, PlayStation 4
Released in JP: June 20, 2019 (Switch), December 5, 2019 (PS4)
Released in CN: August 2, 2023
Released in TW: December 5, 2019

AreasIcon.png This game has unused areas.
GraphicsIcon.png This game has unused graphics.
MusicIcon.png This game has unused music.
RegionIcon.png This game has regional differences.
Carts.png This game has revisional differences.

PrereleaseIcon.png This game has a prerelease article

To do:
So much to do.
  • Look for more unused music.
  • Mainland China version changes.
    • Jinta/Jingeki and Gutsy Bones redesigns.
    • Shadowside Blizzaria, Zundoumaru, Gyuuki and Yamanbaa small designs changes.
    • Biography changes for Yamanbaa and Jibanyan.
    • Name changes like Usapyon and the Oni Tribe.
    • Options removed on the Lambert Post Office Menu.

Yo-kai Watch 4 is the fourth entry in the series, now with a complete graphical overhaul, a darker storyline, and expanding on many mechanics previously seen in the series. An expanded version, Yo-kai Watch 4++, was released in December 2019, containing a new multiplayer mode, and in 2023, a Simplified Chinese localization released, making this game the first time that an entry in the Yo-kai Watch franchise came to China.


Read about prerelease information and/or media for this game.
Prerelease Info

Unused Graphics

To do:
Looooooooads of unused character portraits....

Yo-kai Tribes

Though only Baku, Jibanyan (which both have the Charming Tribe) and Hidabat (who has the Shady Tribe) can be recruited during the first chapter before the Present Yo-kai Tribes switch to the Shadowside Yo-kai Tribes in Chapter 3, when Nate is playable again, icons exist for the other six tribes too! Oddly, the Wicked, Enma or Wandroid Tribes aren't present in this graphic file.

YW4 icon race olds.00.png

Xbox and PC Controller Buttons

There are some unused PC and Xbox One controller button graphics, despite the game not being announced for a release on either of those systems. As the game uses the same graphic motor as Ni no Kuni II these are likely leftovers.

YKW4-gaiji key.png YKW4-gaiji xinput.png

Ni no Kuni II Leftovers

Found in the same folders as the above.

YKW4-gaiji ic (Ninokuni2).png

Unused Characters


There exists an unused bust shot of an NPC character. The filename suggests that you may have been able to manually shop from Yoka Net, rather than Hailey purchasing battle items from Yoka Net for you.

Yokanet npc shop 01.00.png


There are unused textures for Yamata no Orochi, who previously appeared in Yo-kai Watch the Movie: Forever Friends. It's possible that he could have been planned to appear during the adaptation of Forever Friends in the main plot.

X23010000 l.00.png Icon ark x23010000.00.png


A scrapped Yo-kai boss named Hyakumenki (百面鬼/ひゃくめんき) of the Oni Tribe, It is unknown at what point in the game it was intended to be used.

YW4 x25010000 Bustup.png YW4 x25010000 Ark.png


There is also a scrapped Yo-kai named Momoko (百子/ももこ), according to her Yo-kai Ark. Internally, her name and sprites are stored right after the boss Yo-kai, so they're probably related.

X25020000 l.00.png Icon ark x25020000.00.png YW4 Momoko Sprite Unused.gif


There are unused textures for McKraken's final form from Yo-kai Watch 1. Based on the naming convention and other factors, it's possible that it was planned to unlock this form via Equipment or by having it innately with McKraken's base form as a Transformation.

Y027810000 l.00.png YW4 Icon ark y02781000.00.png

Unused Audio

To do:
Unused slightly shorter Mitsumata Mark Jingle? (bgm#230) Maybe it's used in a cutscene.

Unused Music


Usapyon's Invader Mode theme, from Yo-kai Watch Blasters and Yo-kai Watch 3. The filename ordering implies that it was going to be used in a cutscene, but Usapyon never goes into Invader Mode outside of battle, rendering this theme unused.

Unused Jingles


The jingle for picking up an ordinary item from the previous Yo-kai Watch games. Items picked up on the ground are displayed on the top-left screen without any jingle used. It's not even used when opening Treasure Boxes or for getting ordinary Crank-a-kai prizes.


An unused victory jingle, originally used in prerelease footage. Unlike the used jingle, it has no outro intended to play in the results screen, where it was skipped in prerelease footage of it.


The Rocket Completion Fanfare from the Yo-kai Watch anime and Yo-kai Watch 3, likely intended to play in a Hailey and Usapyon Quest.

Unused Geometry

Outer Uptown Springdale Areas

The collision for the roads leading to Blossom Heights, Downtown Springdale, and Breezy Hills can be walked on, leftover from the previous Yo-kai Watch games.

If one goes southwest further out of bounds in the district, one can find some unused geometry placed near what appears to be Shopper's Row, facing the railroad tracks leading to Downtown Springdale. It may have been there to test the low-poly draw distance.

Unused Items

To do:
Add the rest.

Some new unused items were added in v2.2.0, which was likely intended for link with Waiwai Gakuen Seikatsu.

Image Item Name Description Rarity Effects
悠久のペンダント 時を忘れて見とれるほど美しいペンダント。繊細な装飾に思わずため息が漏れてしまう。 ★★★★★ 1人で戦っているとき 敵のミス率

Platform Differences

In the PlayStation 4 version, McKraken cannot be unlocked due to Yo-kai Watch 1 for Nintendo Switch not having interlocking support with those systems, nor the game itself being released for it.

Revisional Differences


The launch version.


Released on June 27, 2019. Downloading the update will reward the Gacha Coin and the One-Star Coin.

  • Fixes a bug involving a Chapter 3 quest getting the player locked out of the time-travelling doors.
  • Alters one of Haruya Sakami's lines in Chapter 3:
Pre-v1.1.1 v1.1.1 Onward
ヘぇ... 面白いヤツらだね。 フッ... 変わった子だね。
(Source: Twitter)


Released on July 10, 2019. Downloading the update will give the player a free One-Star Coin, Five-Star Coin, and Gasha Coin.

  • A new character named Jiba Jinpei is introduced, where scanning his Yo-kai Ark will allow the player to complete a then-exclusive sidequest. It would later be freely available in the update coinciding with the 4++ expansion.
    • That said, he notoriously has a lot more animations hidden in the files.
  • Sighborg Y is added as a befriendable Yo-kai, unlockable via a code.


Released in July 2019.

  • Bug fixes.


Released on August 9, 2019.

  • A new arena is added to the Past Yo-kai World that can be fought in and accessed after beating the main storyline.
  • 18 new befriendable Yo-kai are added, as well as Boss Yo-kai Raidenryuu.
  • The Yo-kai Yamakasa is introduced, where following it at nighttime will drop rare items.


Released in August 2019.

  • Bug fixes.


Released on October 8, 2019.


Released on December 5, 2019, as well as being re-released as the 4++ expansion.

  • Chinese-language support is added.
    • The credits were altered to remove LEVEL-5's localization department from "Special Thanks" in favor of their involvement on the Chinese localization.
  • The Forester house is added as an enterable interior in Uptown Springdale.


Released in April 2020.

  • Three new items are added: the Blue Moon Staff, Sky Snaker Guitar, and Overdrive Helmet. These are likely intended to be unlocked with owning a copy of Yo-kai Watch Jam: Yo-kai Gakuen Y Waiwai Gakuen Seikatsu.