is a 2009 Japanese animated comic science fantasy film directed by Susumu Yamaguchi. It is the fourth film installment in the Sgt. Frog series created by Mine Yoshizaki. The film was released on March 7, 2009 in Japanese theatres and later got released to DVD on July 24, 2009 in Japan.
Plot Mysterious giant dragon-like creatures called "Dragon Tails" appeared across the world. Due to the danger it could bring, the Keroro Platoon did a worldwide research on the Dragon Tails, but Tamama suddenly disappeared during the research. Because of this, the whole platoon started their search for Tamama and ended up in Mont-Saint-Michel, France where they met mysterious girl named Sion, who holds the mysterious Ryū no Hon (Dragon Book). But little they know about the secrets about her and the worldwide calamity that would destroy the entire world, as they know it.
Cast Character Voice actor Sergeant KeroroKumiko WatanabePrivate Second Class TamamaEtsuko KozakuraCorporal GiroroJōji NakataSergeant Major KululuTakehito KoyasuLance Corporal DororoTakeshi KusaoFuyuki HinataTomoko KawakamiNatsumi HinataChiwa SaitōAki HinataAkiko HiramatsuShionNana MizukiPierreDaisuke GouriTeraraIkue ŌtaniKoyuki AzumayaRyō HirohashiAngol MoisMamiko NotoMutsumi SaburoAkira IshidaPaul MoriyamaKeiji FujiwaraMomoka NishizawaHaruna IkezawaNarrationKeiji Fujiwara
Reception During its first week, Keroro Gunso the Super Movie 4: Gekishin Dragon Warriors was placed 5th at the Japanese box office.
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