ケロ０ 出発だよ！全員集合！！
Sunrise
This is episode 0, the prequel to the main Keroro Gunsou anime series. KeroZero was shown in theaters with Keroro Gunsou Movie 4. On the day of Keroro battalion's departure from Keron Planet to Planet Earth, an opposing alien species assails the Keron space station, where Giroro and Zeroro (later known as Dororo) are waiting for Keroro to arrive.
Opening
Dororo
Main
Giroro
Main
Keroro
Main
Kururu
Main
Tamama
Main
Garuru
Supporting
Hinata, Fuyuki
Supporting
Hinata, Natsumi
Supporting
Keroro's father
Supporting
Keroro's mother
Supporting
Kogoro
Supporting
