|This article is about a/an video game in Kamen Rider Ex-Aid.|
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Moshi Moshi Faiz was developed as part of a series of Heisei Rider Gashats by Genm Corp.. As part of CEO Kuroto Dan's ambition to gather the power of the legends preceeding his own Kamen Riders, they contributed to the completion of his Kamen Rider Battle: Ganbarizing.
A manifestation of Kamen Rider Faiz (仮面ライダーファイズ Kamen Raidā Faizu) appeared as part of a gathering of the first seventeen Heisei Riders which empowered Genm as he performed the Ganbarizing Critical Strike, defeating the three doctor Riders with one Rider Kick. Returning to his lair, Dan announced to Parado, who had taken the guise of Dr. Pac-Man, that everything was proceeding according to plan as his assembly of Gashats was completed.
Moshi Moshi Faiz Gashat
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Behind the scenes
Among the Rider Gashats based off the first thirteen Heisei Riders, Moshi Moshi Faiz appears on-screen in Kamen Rider Ex-Aid "Tricks": Kamen Rider Genm; its associated Faiz Gamer features exclusively in Kamen Rider Battle: Ganbarizing.
- The Gashat's Level 2 jingle is a remix of Gekitotsu Robots' Level 2 jingle.
- The Gashat's Level 3 jingle is a remix of DoReMiFa Beat's Level 3 jingle. 
- The first part of it's name, "Moshi Moshi", is what people in Japan say when answering a phone; this is a nod to Faiz having a cellphone as a transformation item, the Faiz Phone.
- Kamen Rider Ex-Aid "Tricks": Kamen Rider Genm