Franchise: おしりたんてい シリーズ

Butt Detective the Movie: The Curry Incident
Butt Detective the Movie: Mystery of the Ruins of Tentōmushi
Butt Detective the Movie: The Secret of Souffulé Island
Butt Detective the Movie: Shiriarty
Butt Detective the Movie: The Dream Jumbo Sweet Potato Cake Festival
Butt Detective the Movie: Farewell, Oh My Beloved Butty
Butt Detective the Movie: Star and Moon