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Bad Boya (Japanese: バッド坊や) is a Rank S Fire-attribute Merican Yo-kai of the Charming tribe.

Bad Boya evolves from Unbelievabou when fused with a Bad Ball.


Bad Boya now has pale blue skin and a dark seafoam green as hair with double ends. He wears shades with grey frames and pointed ends, a slate grey cape with a formed large collar, gray pants with a black belt and a golden buckle that says "BAD", and black ankle boots with four spikes on each.



In Yo-kai Watch 3: Tempura, Bad Boya is Angie's childhood friend. Even as Angie grew up and couldn't see Yo-kai anymore, he still watches over her.

Abilities and Powers


Type Name Power Attribute Range
Attack Practiced Punch (Japanese: 正拳突き Seikenzuki) Single enemy
No description.
Technique Blaze (Japanese: 火炎の術 Kaen no Jutsu) Fire Single enemy
No description.
Inspirit Going Bad (Japanese: ワルにする Waru ni Suru) Single enemy
The Inspirited Yo-kai goes bad (REAL bad) and attacks their allies.
Soultimate Move BAD ☆ Burning Wrath (Japanese: バッド☆炎怒 Bad ☆ Endō) 95 Middle column
(Pending: damaged terrain becomes lava)
Skill Explosive Power (Japanese: 爆発力 Bakuhatsu-ryoku)
First attack will always land a critical.



In Yo-Kai Watch 3 Tempera, Bad Boya and the rest of the Tempest Pride team rescue Nate and Hailey.