Chibi Kero: Kerobouru no Himitsu!? (Chibi Kero: Secret of the Kero Ball!?) é um anime no formato especial que estreou em primavera (abril) de 2007, produzido pelo estúdio Sunrise.

Sobre a produção: são 1 episódio de cerca de 17 minutos e o status atual é "finalizado".

Os gêneros principais são comédia, com temas como Aliens.

No AniList, Chibi Kero: Kerobouru no Himitsu!? tem nota média de 53%, uma nota mediana, e está na lista de 547 usuários.

A young Keroro tries to impress Pururu by showing off the Kero Ball, a ball borrowed by Giroro from his brother Garuru. While testing the buttons, he accidentally transports the 4 tadpoles inside the ball. To get out, they must win the pinball maze. In the outside world, a young blue tadpole Kururu picks up the ball and hears the cries of help. He makes a deal to free those trapped inside if he gets a plate of curry rice. A deal is a deal and with the Kero Ball, a plate of curry rice is produced for Kururu. Unfortunately, the plate grows bigger and bigger and bigger. It got so big, that Kururu was immersed in the curry. The yellow curry slowly transforms the blue Kururu into the "yellow devil" and as the film is about to fade into black, "Kukuku" is heard. (Summary found on Veoh.com)

Sinopse oficial do AniList, traduzida automaticamente quando o navegador permite.