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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++ (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: 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

Yo-kai Watch 4 is the fourth entry in the series, now with a complete graphical overhaul and bigger focus on combat and plot rather than discovery while also being released on a console. Depending on who you ask, they either call it an unfinished amalgamation of a game or a fresher take on the formula that was already established, as well as a much more serious plot. An expanded version, Yo-kai Watch 4++, was released in December 2019 and also contained a new multiplayer mode.

To do:
So much to do.
  • Unused out-of-bounds areas and geometry. Since Uptown Springdale is pretty much ported over from the 3DS games, there's bound to be some unseen graphics.
  • Purapura Busters test maps.
  • Unused jingle.
  • More unused music?
  • Leftover data for a seventh playable character.


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

Unused Graphics

Xbox and PC Controller Buttons

There are some unused PC and Xbox One controller button graphics, despite them not being announced for a release on either of those systems.

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

Ni no Kuni II Leftovers

Some icons from Ni no Kuni II can be found in the same folders as the Xbox and PC Controller Buttons.

YKW4-gaiji ic (Ninokuni2).png

Unused Characters

There exists an unused bust shot of an NPC character. The filename suggests it was supposed to be a shopkeeper for a shop that ended up being scrapped.

Yokanet npc shop 01.00.png

There is also an unused Yo-kai named Momoko (百子), according to her Yo-kai Ark. It is unknown what she was intended to be used for.

X25020000 l.00.png Icon ark x25020000.00.png

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

Through the expansive array of items Yo-kai Watch 4 has to offer, some new unused items have shown up in Version 2.2.0, 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


Internal Playable Character Number

Number Character
1 Touma
2 Natsume
3 Akinori
4 Shin
5 Nate
6 ???
7 ???
8 Katie

There are two for unknown other playable characters exist in the internal coding, as well as Katie significantly being placed last. Considering Yo-kai Watch 4 strictly focused on Shadowside early in development, Natsume, Touma and Akinori may have been placed first and Shin being placed after may have been an extension of the game's plot (as Forever Friends expands on the whole lore of Soranaki).

Two unused entries are placed after Nate, whom are unknown but one of them is likely Hailey Anne who was previously playable in Yo-kai Watch 3. Katie was also notably a late addition. In a later update, Jinpei Jiba was placed on the list as the ninth Watcher.

(Source: source needed)

Revisional Changes

Ver. 1.0

The version used for pre-release material.


The version used for retail and launch after its pushed back release date.


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

  • TEST
  • Fixed a bug involving the Chapter 3 Quest "Play At Midnight" getting the player locked out of the time-travelling doors.
  • One of the lines said by Haruya Sakami were changed in Chapter 3 in the Ver.1.1.1. update.
Ver.1.0.0 - Ver.1.1.0 Ver.1.1.1+
ヘぇ... 面白いヤツらだね。 フッ... 変わった子だね。
(Source: source needed)


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 the 4++ expansion.
    • That said, he notoriously has a lot more animations hidden in the files.
  • Sighborg Y was added as a befriendable Yo-kai, unlockable via a code.


Released in July 2019.

  • Bug fixes.


It was released in August 9th, 2019.

  • A new arena was added to the Past Yo-kai World that can be fought in and accessed after beating the main storyline.
  • 18 new befriendable Yo-kai have been 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.

  • This update notably adds data of the Yo-kai found in the then-upcoming 4++ expansion.
  • McKraken is added as a befriendable Yo-kai for those who bought Yo-kai Watch 1 for Nintendo Switch.

Ver 2.1.0.

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

  • Chinese-language support is added.
  • The Forester house is added as an enterable interior in Uptown Springdale.

Ver 2.2.0.

Released in April 2020.