Boss medal

The primary Boss Yo-kai symbol.

Boss Yo-kai (Japanese: ボス妖怪 Bosu Yōkai) are powerful enemy Yo-kai which the player cannot befriend or recruit, and are typically stronger than most Yo-kai the player has met up to that point.

Most of the chapters in the Yo-kai Watch video games end with a battle with one of these bosses, and they are registered in the last few pages of the Yo-kai Medallium, just after the Legend Pages; however, they are not assigned any true Rank or Tribe, with the Boss symbol being in place of a Tribe's own.

Some Boss Yo-kai become befriendable in future games following their debut, giving them a Tribe and a Rank as well as a smaller, more compact form, which is not considered a Boss Yo-kai. Most bosses belong to the Shady tribe, Slippery tribe, Wicked tribe, Brave tribe or Tough tribe due to them being sneaky with evil or bad intentions or their high defensive and offensive powers. Also, almost all bosses have a negative Inspiritment effect.

List of Boss Yo-kai

Boss Yo-kai introduced in Yo-kai Watch

Boss Medal Image Name Attribute Weakness
Boss medal Mitsumata-no-Zuchi Boss YW1-062 Slimamander Fire
Boss medal Nobosetonman YW1-063 Sproink Fire
Boss medal Tsuraretaromaru YW2-045 SV Snaggerjag Water
Boss medal Oboro Nyudo YW2-044 Massiface Earth
Boss medal Boreimusha YW4-039 Phantasmurai Wind
Boss medal Onikumomon Tarantutor Lightning
Boss medal Yaburekabure-incho YW4-040 Dr. Maddiman Drain
Boss medal McKraken McKraken Drain
Boss medal McKraken2 McKraken (Second Form) None
Boss medal Duwheel Duwheel Fire
Boss medal YW6-034 Chirpster Wind
Boss medal PYW-364 Eyedra Fire
Boss medal PYW-365 Hoggles Fire
Boss medal PYW-366 Styx Mk.VI Water
Boss medal PYW-367 Clipso Earth
Boss medal PYW-369 Spooklunk Wind
Boss medal PYW-368 Dr. Nogut Drain
Boss medal Squisker Squisker None
Boss medal YW10-021 Wobblewok Earth
Boss medal YW13-010 Gargaros Fire
Boss medal YW13-011 Ogralus Water
Boss medal YW13-012 Orcanos Drain

Boss Yo-kai introduced in Yo-kai Watch 2

Boss Medal Image Name Attribute
Boss medal Gashadokuro YW5-025 Gutsy Bones Strength Wind



Boss medal Dekanyan EYW-005 Meganyan Wind
Boss medal Daikougai-senchou YW7-036 Cap'n Crash Water
Boss medal Taifu-no-Me Eyeclone WInd
Boss medal Kin and Gin Kin and Gin Kin: Earth, Lightnig

Gin: Water, Ice

Boss medal YW9-041 Dame Dedtime Ice, Lightning
Boss medal Dame Demona Dame Demona Unknown
Boss medal Armdran Artwork Hans Full Unknown
Boss medal Torbellóptico Eyephoon Wind
Boss medal Derukuitataki Mallice Earth
Boss medal Images (82) Cap'n Rex Water
Boss medal Ikuyune-kuruyone Flippa and Floppa Unknown
Boss medal YW11-016 Dame Dredful Unknown
Boss medal Ayatori-sama Kat Kraydel Unknown
Boss medal Gashadokuro G YW8-025 Goldy Bones Strength




Boss medal YW11-015 Glitzy Bones Strength


Weakness Fire

Boss medal Vielarmoniker Artwork Hans Galore Unknown
Boss medal 37d0802bdf4e5414e38bdff1ee86f3de07cc6009 hq Retinado Wind

Boss Yo-kai introduced in Yo-kai Watch 2: Psychic Specters

Boss Medal Image Name Attribute
Boss medal YW8-030 Rubeus J Fire
Boss medal YW8-029 Hardy Hound Earth
Boss medal YW11-017 Hinozall Lightning
Boss medal Bronzlow Bronzlow Fire or Wind
Boss medal Teastroyer Teastroyer Ice
Boss medal Infinitio Infinipea
Boss medal YW11-019 Headasteam Fire
Boss medal YW8-028 Kabuking Lightning

Boss Yo-kai introduced in Yo-kai Watch Blasters

Boss Medal Image Name Attribute
Boss medal Schnatterschreck Artwork Tattleterror Unknown
Boss medal YW9-039 Mass Mutterer Unknown
Boss medal Whisped Cream Whisped Cream Unknown
Boss medal YW8-031 Robonyan 28 Strength




Boss medal YW13-014 Red Paws Unknown
Boss medal YW13-013 Swirlious Omai Unknown

Boss Yo-kai introduced in Yo-kai Watch Blasters: Moon Rabbit Crew

Boss Medal Image Name Attribute
Boss medal Captain Thunder artwork Captain Thunder Strength




Boss medal Captain Thunder 2 Captain Thunder (Serious Form) Strength




Boss medal YW10-022 Robonyan 3000 Unknown
Boss medal Inumaro2 Duke Drooly Unknown
Boss medal Nekokiyo2 Alicktokat Unknown
Boss medal EYD-006 Zazel Drain
Boss medal EYW-013 Zazelmare Unknown
Boss medal Images (76) Golden Claws Unknown
Boss medal Images (75) Swirlious Gold Unknown
Boss medal YW13-015 Hinozall Awoken Unknown
Boss medal Bushi-Oh Shogun King Unknown
Boss medal Images (62) Pink Emperor Unknown

Boss Yo-kai introduced in Yo-kai Sangokushi

Boss Medal Image Name Attribute
Boss medal None Noruka Fire
Boss medal None Soruka Ice
Boss medal None Norukasoruka Unknown
Boss medal None Maou Koi Unknown
Boss medal None Mao Shibu Unknown

Boss Yo-kai introduced in Yo-kai Watch 3

Boss Medal Image Name Attribute
Boss medal None Junkernaut Unknown
Boss medal Super Tencho YD2-051 Supermanager Unknown
Boss medal None Hoaxy-Coaxy Unknown
Boss medal None Agent X Unknown
Boss medal Demon Injaneno The Executor Unknown
Boss medal None Slackerjack Unknown
Boss medal None Yo-kaiju Water
Boss medal None Yopple-Bot Lighting
Boss medal None No-Bot Fire
Boss medal None Beddy-Byes Ice
Boss medal None Rongo Swirll Lightning
Boss medal None The Ghoulfather Unknown
Boss medal None Don Spiracy Unknown
Boss medal None Slackolyte Unknown
Boss medal None Duolyte Fire
Boss medal None Chirpolyte Wind
Boss medal None Torneyedo Wind
Boss medal None Hollow Guard Unknown
Boss medal None Skulk Earth
Boss medal None Orcalyte Unknown
Boss medal None The Zenlightener Unknown
Boss medal Oni King2 Plundros Unknown

Boss Yo-kai introduced in Yo-kai Watch 3: Sukiyaki

Boss Medal Image Name Attribute
Boss medal None Yellskitchen Unknown
Boss medal None Maiden Ruin Unknown
Boss medal Chronomen The Woebra Unknown
Boss medal YD8-048 The Goldfather Unknown
Boss medal Gotekki YD5-051 IcarOS Unknown
Boss medal Daiyōki Hogehoēru Narwail Unknown
Boss medal None Whaleman Unknown
Boss medal None Soulcleaver Unknown
Boss medal None Holey Moley Unknown
Boss medal YD7-063 The Lastest Nyanmurai Unknown

Boss Yo-kai introduced in Yo-kai Watch Blasters 2

Boss Medal Image Name Attribute
Boss medal None Chi Ma Tree Unknown
Boss medal None BaiKING Unknown
Boss medal None Miiror Ball Unknown
Boss medal None Kanibouzu Unknown
Boss medal None Orifalcon Unknown
Boss medal None WaNEWdou Unknown
Boss medal YD9-018 Dark Master Unknown
Boss medal None Sasurai no Billy Unknown
Boss medal None Gowin Unknown
Boss medal None Kanaendesu Unknown
Boss medal None Majin Banbarayar Unknown
Boss medal None Yoderusen Unknown
Boss medal None Zircondor Unknown

Boss Yo-kai introduced in Yo-kai Watch 4

Boss Medal Image Name Attribute
Boss medal Jingeki Jingeki Unknown
Boss medal None Mitsumatanozuchi (Shadowside) Unknown


With the release of Yo-kai Watch Blasters and the release of the DX Yo-kai Watch U Prototype, the Yo-kai bosses featured in the game were given B-medals. Like the other B-medals, their medals are black-framed, and their artwork features the Bosses in action.

However, there are some differences. Their medals don't play the traditional summoning music of any of the Yo-kai Tribes when inserted into the DX Yo-kai Watch U, but merely an ominous electric guitar. In addition, Boss Yo-kai Medals do not have any tribe-affiliated insignias on them; rather, they have a slash going through them.

Boss Yo-kai that have B Medals


  • In Yo-kai Watch 3, the bosses are no longer given numbers that continue from the befriendable/normal Yo-kai Medallium number. Instead, the Boss Yo-kai numbering restarts the numbering system, and adds a B for Boss in prefix form to the number.
  • Despite befriendable bosses like Slimamander or SV Snaggerjag gaining friendlier-looking forms, their medals still showcase their boss forms, indicating that all Boss Yo-kai have regular Yo-kai Medals that are simply unseen and never granted to the player.

In other languages

  • Italian: Mostri Yo-Kai
  • German: Boss-Yo-kai

See Also

Start a Discussion Discussions about Boss Yo-kai