Sgt. Frog Movie 2
Plot Summary: During a vacation Natsumi is visited by a female alien and male alien who she later gains feelings for from the ocean that makes her the Deep Sea Princess who, along with the rest of the Keroro Platoon, encounter many dangers summoned by a mysterious creature.
Type: winter 2007 Anime
Date aired: 2007-03-17
Other name: Keroro Gunsou Movie 2: Shinkai no Princess de Arimasu!, Sgt. Frog