They can be summoned by putting in the Y Medal of the Yo-kai Hero when their respective Onryo are around. The YSP Watch is turned anti-clockwise while the summoning jingle plays and transforms the bearer into the hero itself, giving them strength to fight enemies.
Each Yo-kai Hero has a specific power that can be altered by putting in different kinds of Command Y Medals, giving the hero a unique ability.
List of Yo-kai Heroes
|Yo-kai Heroes (Japanese: 妖怪HERO (ヒーロー) Yōkai Hīrō)||Appearance||Watcher||Yo-kai/Onryo||Y Medal||First Appearance|
|Yami Shishi O||-||-||TBA|
|Mysterious Hero 2||-||-|
Transformation Song Phrase (YSP Watch)
When a Yo-kai Hero's medal is inserted into the YSP Watch, the watch says: Y! ♪Changing Form Yo-kai Hero!♪ (Japanese: ウーイ！ ♪チェンジフォーム 妖怪ヒーロー！♪ Wai! ♪Chenjifōmu yōkai hīrō!♪)
Transformation Song Phrase (YSP Watch Zero)
When a Yo-kai Hero's medal is inserted into the YSP Watch Zero, it says: ♪Hero Change!♪ (Japanese: ♪英傑変化！♪ ♪Eiketsu henka!♪)
Transformation Song Phrase (YSP Watch Viper Connector)
When a Yo-kai Hero's medal is inserted into the YSP Watch Viper Connector, it says: ♪Snake! Are you heavy?♪ (Japanese: ♪スネーク！ アー ユー ヘビー？♪ ♪Sunēku! Ā yū hebī?♪)
Transformation Song Phrase (UR Watch)
♪Y! Y! Yo-kai! Heroes!♪ (Japanese: ♪ワイ！ ワイ！ 妖怪！ ヒーローズ！♪ ♪Wai! Wai! Yōkai! Hīrōzu!♪)
Command (YSP Watch)
When a command medal is inserted into YSP Watch, it says: Y! Execute! (Japanese: ウーイ！ エグゼキュート！ Wai! Eguzekyūto!)
Command (YSP Watch Zero)
When a command medal is inserted into YSP Watch Zero, it says: Glorious Execution! (Japanese: 英名実行！ Eimei Jikkō!)
Command (YSP Watch Viper Connector)
When a command medal is inserted into the YSP Watch Viper Connector, it says: Snake! Execute! (Japanese: スネーク！ エグゼキュート！ Sunēku! Eguzekyūto!)
Command (UR Watch)
- As the name implies, they are superheroes possessed by Yo-kai.
- They may be inspired by tokusatsu heroes.
- Some Yo-kai Heroes introduced in Yo-kai Watch Jam - Yo-kai Academy Y: Close Encounters of the N Kind (Clock Lady, Wild Boy, Mist Shadow, Blue Moon, Sky Snaker, The Viper, Shining Boy, DS Galaxy and Earth Walker) have their names in English, written with Japanese Katakana.
- All the Heroes that do not have the Watcher possessed by an Onryo still have the same voice actor as the Watcher. (E.g., Mist Shadow, DS Galaxy, Sky Snaker, The Viper)
- Kengo Benimaru, Shishi O, Momotaromaru, Yami Shishi O and Yami Ninetail are the only five Yo-kai Heroes with a Japanese name.
- Yami Shishi O and Yami Ninetail are the only two Yo-kai Heroes with ”Yami” in name.
- Little Kommander is currently the only Yo-kai Hero to have his voice actress protraying him, his Watcher, as well as the Onryo needed to possess that watcher.