Kerokero Keroppi no Yowamushi-ouji no Daibouken
English title: Keroppi in the Adventures of the Coward Prince
Japanese title: けろけろけろっぴのよわむし王子の大冒険
Type: OVA
Episodes: 1
Source: Unknown
Genres: Adventure, Fantasy
Producers: Sanrio
Duration: 30 min
Rating: G - All Ages

Keroppi is blamed for the tomfoolery of others during a movie. As he runs home crying he is struck by lightening and transported to another world--just like in the movie! There he meets a cowardly prince and the both of them go on adventure to learn about courage and sticking up for oneself.