本片是一部Animation片，由Junichi Sato导演，由Kumiko Watanabe/Etsuko Kozakura/Jouji Nakata主演。
剧情简介：Another Kiruru appears in the South Pacific, but it was defeated by two unknown entities that look like Keronians, with subtle differences. Meanwhile, Keroro and the gang goes for a trip sponsored by Momoka to a private island. There, an alien named Meru, who claims himself as the prince of the deep sea, captures them, and aims to make Natsumi his princess, and that they had captured Keroro, who pleads to them to assist the Keroro Platoon, only to be kicked out.
外文名：超劇場版 ケロロ軍曹２ 深海のプリンセスであります！
类型：Animation / Comedy / Science Fiction
导演：Junichi Sato / Susumu Yamaguchi
演员：Kumiko Watanabe / Etsuko Kozakura / Jouji Nakata / Takehito Koyasu
