Keroro Gunsou Movie 5: Tanjou! Kyuukyoku Keroro, Kiseki no Jikuu-jima, de Arimasu!!
English title: Keroro Gunso the Super Movie: Creation! Ultimate Keroro, Wonder Space-Time Island!!
Japanese title: 超劇場版ケロロ軍曹 誕生!究極ケロロ奇跡の時空島であります!!
Alternative titles: Chou Gekijou-ban Keroro Gunsou: Tanjou! Kyuukyoku Keroro, Kiseki no Jikuu-jima, de arimasu!!
Type: Movie
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Feb 27, 2010
Duration: 1 hr 14 min
Rating: PG - Children
Studios: Sunrise
Genres: Comedy
Demographics: Shounen

One day, a stone carving bearing an uncanny likeness to Keroro  arrives at Fuyumi's place. To solve this mystery, the Keroro Squad travels to the isolated and mysterious Easter Island. There, they meet harmless spirits known as Mana, and the odd twins Io and Rana. Lastly, there is Akuaku, a legendary evil spirit recently awoken from its long sleep. 

(Source: AniDB)