Kero Kero Keroppi no Dai Bouken
English name: Keroppi in the Big Adventure
Genres: Adventure, Fantasy
Type: OVA, Episodes: 1
Aired: Sep 27, 1989
Source: Unknown
Rating: G - All Ages
Synopsis:
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.