There are 12 companion pieces in the forms of "Fact Files" (which expand upon a given character from a corresponding episode) airing shortly after each episode.
Mars Daybreak
Kimi ga Aruji de Shitsuji ga Ore de
RIN-NE 2nd Season
Mikan's Picture Diary
One Piece: Django's Dance Carnival
Onegai My Melody: Kuru Kuru Shuffle!
Gargantia on the Verdurous Planet: Specials
One Piece: Clockwork Island Adventure
One Piece: Soccer King of Dreams
Please Teacher!
Inferno Cop
