 Frog" anime series, also known as "Sergeant Keroro" and originally titled as "Keroro Gunso", is a Japanese television series produced and animated by Sunrise Inc.It first began airing in Japan on the television network TV Tokyo on April 3, 2004, and has since broadcast over 300 episodes, which are normally constituted from two 15 minutes shorts mostly and sometimes one 30 minutes story.The anime is an adaptation of Mine Yoshizaki's manga series of the same name, which was first serialized in Japan's "Shōnen Ace" in 1999, and has been toned down for children instead of focusing on teenagers.