When Pocapon's belly button gone missing, Keroppi, Den Den, and Ruby go to find it as without it he is unable to play the drums.
Hoshi no Yuuenchi
Hello Kitty no Santa-san ga Futari Ita
My Melody no Akazukin (OVA)
Bad Badtz-Maru no Otoko Dokyou no Omoiyari
Hello Kitty no London ni Orita Uchuujin
Cinnamon the Movie
Kerokero Keroppi no Kyouryuu ga Deta
Santa-san to Tonakai Kuppi
Sanrio Christmas Fantasia
Kerokero Keroppi no Christmas Eve no Okurimono
Hello Kitty no Yuubinya-san Arigatou
Kitty to Mimmy no Atarashii Kasa
Eigo de Utatte Asobou
Hello Kitty no Kieta Santa-san no Okurimono
Littleforestmello
Hello Kitty no Shirayuki-hime