Washogun Artwork
This article is in need of cleanup to meet Yo-kai Watch Wiki's quality standards.

Please improve it as you see fit. Editing help is available.
Reason:November 7, 2016.

Rubeus J (Japanese: レッドJ Reddo Jei) is a Boss Yo-kai.

In Yo-kai Watch Blasters: Moon Rabbit Crew, Rubeus J can be befriended, and is a Fire-attribute Rank A Rare Yo-kai of the Charming tribe.

In Yo-kai Watch: Wibble Wobble, Rubeus J is recruitable in his Boss form, which is a Rank SS Yo-kai.


Video games

Anime series


Rubeus J is a towering and very powerful anthropomorphic Cat Yo-kai who bears a strong resemblance to Jibanyan, though the difference is that Rubeus J's body is brimming with muscles and built more like a humanoid. Rubeus J has a pair of long pointy ears, a long face with a small beard under the chin, thick upper cat lips and angry-looking yellow eyes. Instead of wearing a belly warmer like Jibanyan's, Rubeus J wears a golden belt equipped with numerous sticks of dynamite. He also wears a small pendant around his neck.

Rubeus J is a very violent and vicious Yo-kai, standing out as one of the most well-known evil ones, preceded only by Dame Dedtime, Kin, Gin, Bronzlow and the Wicked tribe. He showed no qualms when destroying a young boy's village and caused him to become the Yo-kai Venoct. He also showed a cocky and arrogant disposition, referring to Venoct as a "child" and even after his defeat at hands of the latter, he taunted him by describing Hardy Hound and his subordination to him.

In Venoct's backstory, Rubeus J is the Yo-kai responsible for the destruction of Venoct's village, the deaths of his family and friends, and triggering his conversion into a Yo-kai. Since then, Venoct has a fueled desire for revenge, as revealed in the last chapter of his mini-series. Upon his defeat, it is revealed that Rubeus J answers to the even stronger Hardy Hound. He states he himself is "nothing compared" to the dog Yo-kai.

Red Palace

Rubeus J, the Red Palace and the silhouettes of his subordinates.

In Venoct's search for Rubeus J, he states he has several subordinates under his command, whose descriptions matched Nate, his family, Whisper, and a number of students in his school. These unnamed subordinates include:

  • An anthropomorphic hound-like entity adept on using an iron flail (his description matched Nate's father).
  • A beautiful, violent woman (her description matched Nate's Mother) with two sets of snakes growing out of her back. She has a penchant for slicing people in half with her Zanbatō.
  • A strategist (who matched Whisper).
  • A subordinate with no special qualities (which matched Nate).

With the exception of the latter two, all of Rubeus J's subordinates accompanied him and engaged Venoct in battle.

The Dread Knights are the foot soldiers of Rubeus J. They are said to be humans who act like savages.

According to Venoct, he has the power to crush "mechanical beasts" with his punches. His prowess was shown in a flashback, as he viciously raided and destroyed Venoct's home village. He can also make a large purple fireball form from his hand, as seen in his fight with Venoct.


Yo-kai Watch Blasters

Rubeus J can be befriended in the first main mission of the Moon Rabbit Crew update by getting the Special prize in the fight against Super Rubeus J and Super Hardy Hound (Requires all the players to be Red Cat Corp members).

Yo-kai Watch 3

Rubeus J can be freed from the Springdale Crank-a-kai with a 5-Star Coin.

Game data

Main series games data

Yo-kai Watch 3

Stats Calculation
This shows Rubeus J's stat on level: 99.

Type Name Power Attribute Range
Attack Cleave (Japanese: きりさく) 17-37 x 3 Single enemy
No description.
Technique Blaze (Japanese: 火炎の術) 50-110 Fire Single enemy
No description.
Inspirit Become Violent (Japanese: 狂暴にする) - Single enemy
The inspirited Yo-kai becomes violent, making it attack it's allies.
Soultimate Move Infernal Blast(Infernal Grudge Ball (Japanese: 地獄の怨念玉)) 190-285 Single row
No description.
Skill Rush (Japanese: ラッシュ) - Self
When user defeats a enemy, the user moves again.
Blasters Stats

Attribute tolerance

Held items


Spin-off game data

Yo-kai Watch Blasters

Yo-kai Watch Busters 2

Other games

Yo-kai Watch: Wibble Wobble

Rubeus J Wib Wob
Stats Calculation
Soultimate Move
Infernal Blast
Pops central Yo-kai Wib Wob with a blast of evil energy.
Other Effects
Soultimate Levels
LV01 Damage Inflicted: 39pt
LV02 Damage Inflicted: 51pt
LV03 Damage Inflicted: 62pt
LV04 Damage Inflicted: 74pt
LV05 Damage Inflicted: 85pt
LV06 Damage Inflicted: 96pt
LV07 Damage Inflicted: 107pt
Skill Levels
Get a bonus in Score Attack against Mass Mutterer
LV01 Effect: 5%
LV02 Effect: 6%
LV03 Effect: 7%
LV04 Effect: 8%
LV05 Effect: 10%

Yo-kai Watch: Ukiukupedia


Fire Attribute
Rubeus J
Level 30
Fire Attribute



Fire Attribute
Rubeus J
Fire Attribute


Fire Attribute


Busters/Blasters Moveset

Rubeus J-attacker

Strong against; fire

weak against; Earth

Busters Skill; Rush-user can use the attack used by the A button forever.

Move Base Power/description
Triple Attack 30 (hits three times. On the third attack, does more damage)
Avoid None (dodges an enemy attack)
Attack rush 25 (hits a bunch of times. On the last attack, does more damage)
Soultimate; Infernal Grudge ball 500 (User throws a ball that damages enemies)

Moves that can be learned:

Move Base Power/description
Charge Attack 80 (attacks a nearby enemy, If charged does it more damage)
Flame 50 (user attacks an enemy with a fire attack, does more damage if charged.)


  • Befriended (Yo-kai Watch: Wibble Wobble): "Heh Heh Heh...For me liking such a pitiful child... I'll make you suffer!"
  • Released from Crank-a-kai (Yo-kai Watch 3): "I'm out and it was a calmity. Fufufu... I'll go on a rampage...!" (我を出すとは 災難だったな. ふふふ... 暴れまわってやるぞ!)

In the anime

After his description on the previous three episodes, Rubeus J makes his formal appearance in Venoct's Revenge 4: Rubeus J. He shows in front of Venoct along with his army and engages him into combat. After a long battle, Venoct defeats Rubeus J and his subordinates. Upon defeat, Rubeus J taunts Venoct about Hardy Hound and how is he subordinated to him, along with his greater power- coincidentally, Komasan was walking over there.

MD and Red J 2

Hardy Hound and Rubeus J being befriended by Momonyan.

Momonyan befriended him along with Hardy Hound in EP093 and they got ready to fight the Oni.

In EP112, Rubeus J, Gargaros, Hardy Hound, and Cap'n Crash went to Disrupting Class Academy but all they did is to damage the school. Mr. Crabbycat had the idea to rebuild the academy to match their size, which worked until the school got destroyed by transfer students Dromp, Gutsy Bones, and Meganyan.

In EP113, Rubeus J, Hardy Hound and Captain Thunder caught Whisper for stealing their spiked microphone and started to beat Whisper up, sending him flying out of the building when singing.

Rubeus J appears again in EP143, where Nate uses him as a target for testing out his new Yo-kai Blaster.


"Rubeus" is the Latin word for "red;" hence, "Rubeus J" translates to "Red J," essentially mimicking his Japanese name.


Red J's appearance bears a strong resemblance to Kenshiro from the Fist of the North Star franchise. Red J even made the same posture as Kenshiro usually did with intimidatingly cracking his knuckles during his introduction.


  • Red J is notable for being one of the few Yo-kai to be defeated in actual combat in the anime.

In Other Languages

Language Name Meaning
Flag of Japan Japanese レッドJ Reddo Jei "Red J"
Flag of France French Jiganyan
Flag of Spain Spanish Rúbeo J
Flag of Germany German Jibalzebub/Jibalzebub J
Flag of Italy Italian Felimonio
Flag of South Korea Korean 레드 J Ledeu J
More Languages
Flag of Portugal Portuguese (European) Devastador

Community content is available under CC-BY-SA unless otherwise noted.