Kerokero Keroppi no Kero Kero House no Himitsu
English title: Keroppi in the Frog's Secret House
Japanese title: けろけろけろっぴのけろけろハウスのひみつ
Alternative titles: Hello Kitty and Friends: The Frog's Secret House, Keroppi and Friends: The Frog's Secret House
Type: OVA
Source: Unknown
Episodes: 1
Status: Finished Airing
Aired: Nov 21, 1993
Duration: 30 min
Rating: G - All Ages
Producers: Sanrio
Genres: Fantasy
Demographics: Kids

On a rainy day Keroppi and friends find their elders' old secret club house. But the house ends up being more magical than they thought.