View source for Sgt. Frog

{{Short description|Japanese manga series by Mine Yoshizaki}}
{{Infobox animanga/Header
| image = Kerorotankobon1.jpg
| caption = First ''[[tankōbon]]'' volume cover, featuring Keroro
| ja_kanji = ケロロ軍曹
| ja_romaji = Keroro Gunsō
| genre = {{ubl|[[Comedy]]<ref>{{cite web |last1=Loveridge |first1=Lynzee |title=Viz Media Adds Mikansei No. 1, Sgt. Frog, Hands Off! Digitally |url=https://www.animenewsnetwork.com/news/2014-12-16/viz-media-adds-mikansei-no-1-sgt-frog-hands-off-digitally/.82256 |website=[[Anime News Network]] |access-date=February 21, 2019 |date=December 16, 2014 |archive-date=August 12, 2019 |archive-url=https://web.archive.org/web/20190812060614/https://www.animenewsnetwork.com/news/2014-12-16/viz-media-adds-mikansei-no-1-sgt-frog-hands-off-digitally/.82256 |url-status=live }}</ref>|[[Science fiction]]<ref>{{cite web |last1=Loo |first1=Egan |title=5th Sgt. Frog Movie, Nintendo DS RPG Detailed |url=https://www.animenewsnetwork.com/news/2009-12-09/5th-sgt-frog-movie-nintendo-ds-rpg-detailed |website=[[Anime News Network]] |access-date=February 21, 2019 |date=December 9, 2009 |archive-date=May 25, 2019 |archive-url=https://web.archive.org/web/20190525144513/https://www.animenewsnetwork.com/news/2009-12-09/5th-sgt-frog-movie-nintendo-ds-rpg-detailed |url-status=live }}</ref>}}<!-- Genres should be based on what reliable sources list them as and not on personal interpretations. Limit of the three most relevant genres in accordance with [[MOS:A&M]]. -->
}}
{{Infobox animanga/Print
| type = manga
| author = [[Mine Yoshizaki]]
| publisher = [[Kadokawa Shoten]]
| publisher_en = {{English manga publisher | [[Northern America|NA]]/[[United Kingdom|UK]] |[[Viz Media]]}}
| demographic = ''[[Shōnen manga|Shōnen]]''
| magazine = {{ubl|[[Monthly Shōnen Ace]]|{{noitalic|(April 1999 – September 2007, October 2013–present)}}|[[Kerokero Ace]]|{{noitalic|(October 2007 – September 2013)}}}}
| first = April 1999
| last = 
| volumes = 33
| volume_list = List of Sgt. Frog chapters
}}
{{Infobox animanga/Print
| type = manga
| title = Chō Keroro Gunsō UC: Keroro Robo Daikessen
| author = {{ubl|Yūtarō Shido|Mine Yoshizaki (original)}}
| publisher = Kadokawa Shoten
| publisher_en = 
| demographic = ''Shōnen''
| magazine = Monthly Shōnen Ace
| first = October 2018
| last = 
| volumes =
| volume_list = 
}}
{{Infobox animanga/Video
| type = tv series
| director = {{ubl|[[Junichi Sato]] (executive director)|Yusuke Yamamoto (#1–103)|Nobuhiro Kondo (#104–358)}}
| producer = {{ubl|Yoshikazu Beniya|Norio Yamakawa|Aya Yoshino|Naoki Sasada|Teruaki Jitsumatsu|Kazuhiro Asou|Tomoko Takahashi|Chieo Ohashi|Masayuki Ozaki}}
| writer = {{ubl|[[Mamiko Ikeda]] (#1–103)|[[Masahiro Yokotani]] (#104–358)}}
| music = Saeko Suzuki
| studio = [[Sunrise (company)|Sunrise]]
| network = [[TV Tokyo]]
| network_en = {{English anime networks|SEA=[[Animax Asia]] 
| NA= [[Crunchyroll]], [[Funimation]], [[Netflix]]
| JP=[[Cartoon Network Japan]]
| IN=[[Sony Yay]]
}}
| licensee = {{English anime licensee|NA={{ubl|[[Crunchyroll]] (streaming)|[[Discotek Media]] (home video)}}}}
| first = April 3, 2004
| last = April 3, 2011
| episodes = 358 
| episode_list = List of Sgt. Frog episodes
}}
{{Infobox animanga/Other
| title = Films
| content = 
* ''[[Keroro Gunsō the Super Movie]]'' (2006)
* ''[[Chō Gekijōban Keroro Gunsō 2: Shinkai no Princess de Arimasu!]]'' (2007)
* ''[[Keroro Gunso the Super Movie 3: Keroro vs. Keroro Great Sky Duel]]'' (2008)
* ''[[Keroro Gunso the Super Movie 4: Gekishin Dragon Warriors|Keroro Gunsō the Super Movie: Crushing Invasion, Dragon Warriors]]'' (2009)
* ''[[Keroro Gunso the Super Movie: Creation! Ultimate Keroro, Wonder Space-Time Island]]'' (2010)
}}
{{Infobox animanga/Video
| type = tv series
| title = Keroro 
| director = Haruki Kasugamori
| producer = {{ubl|Tsuyoshi Kikuchi|Hiroyuki Watanabe|Hiromitsu Higuchi}}
| writer = {{ubl|Haruki Kasugamori|Mine Yoshizaki}}
| music = SuperSweep co., ltd.
| studio = {{ubl|Sunrise|Gathering}}
| network = [[Animax]]
| network_en =
| licensee =
| first = March 22, 2014
| last = September 6, 2014
| episodes = 23
| episode_list = 
}}
{{Infobox animanga/Video
| type            = anime
| title           = 
| director        = 
| producer        = 
| writer          = 
| music           = 
| studio          = [[Bandai Namco Pictures]]
| licensee        = 
| network         = 
| network_en      = 
| first           = 
| last            = 
| episodes        = <!-- This parameter should only be incremented when new episodes air or when a [[Wikipedia:Identifying reliable sources|reliable source]] can confirm a specific number of episodes. -->
| episode_list    = 
}}
{{Infobox animanga/Other
| title           = Related media
| content         = 
* [[Sgt. Frog#Video games|List of ''Sgt. Frog'' video games]]
}}
{{Infobox animanga/Footer}}

'''''Sgt. Frog''''', known in Japan as {{nihongo|'''''Keroro Gunso'''''|ケロロ軍曹|Keroro Gunsō|lit. "Sergeant Keroro"{{efn|{{nihongo||ケロケロ|Kerokero}} is the Japanese onomatopoeia for a frog's ribbit.}}}}, is a Japanese [[manga]] series written and illustrated by [[Mine Yoshizaki]]. It was launched in ''[[Monthly Shōnen Ace]]'' in April 1999. The story follows the attempts of a platoon of [[frog]]-like alien invaders to conquer [[Earth]]. Sergeant Keroro, the titular character, is the leader of the platoon, but is at the mercy of a human family of three after being captured by them. Keroro is forced to do meaningless chores and errands for the family after his army abandons his platoon on [[Earth]]. The series was later adapted into an [[anime]] television series by [[Sunrise (company)|Sunrise]], which ran for [[List of Sgt. Frog episodes|358 episodes]] from April 2004 to April 2011. A second 23-episode series was broadcast from March to September 2014. A new anime project has been announced.

The manga was released in North America by [[Tokyopop]] from March 9, 2004 to May 10, 2011 (for a total of 21 volumes), and later digitally by [[Viz Media]] since December 2014. A first English dub of the anime series aired on the Southeast Asian TV channel [[Animax Asia]] in 2008, with the title ''Sergeant Keroro''; [[Funimation Entertainment]] released a second 78-episode English dubbed version in North America in 2009, which aired as ''Sgt. Frog'' on [[Crunchyroll]], [[Funimation]] and later on [[Netflix]], as well as on DVD sets. [[Discotek Media]] re-released the Funimation dub in [[SD Blu-ray]] in 2021. In 2005, the manga received the 50th [[Shogakukan Manga Award]] for the [[Children's anime and manga|children's manga]] category.

==Plot==
{{See also|List of Sgt. Frog characters}}

The Keroro Platoon is a group of five, froglike alien soldiers from Planet Keron. They mean to conquer “Pekopon” (their name for  "Earth") but fail every time they try.  Their leader, Sergeant Keroro, is incompetent and has little interest in conquering Pekopon. Instead, he likes making plastic [[Gundam model|Gundam models]], watching TV, or coming up with schemes to make money. The four other members of the platoon are: adorable but violent Private Second Class Tamama; bellicose yet tenderhearted Corporal Giroro; intelligent but mischievous Sergeant Major Kururu; and disciplined but traumatized Lance Corporal Dororo.

The largest obstacle in the way of their mission is the Hinata Family, who must take care of the Keroro Platoon due to the Keron Army deserting the latter on Earth. Keroro is kept busy with manual labor and constant abuse, primarily from the family daughter, Natsumi. Each member of the platoon finds himself in the care of a human: Giroro's is Natsumi Hinata, whom he falls in love with; Keroro's is Fuyuki Hinata, who considers the sergeant his only true friend; Kururu's is Mutsumi Saburo, who's just as mischievous as him; Dororo's is Koyuki Azumaya, a fellow ninja; and Tamama's is Momoka Nishizawa, who's just as bipolar as him. All are tied to the Hinatas in some way throughout the events in the anime and manga.

==Media==

===Manga===
{{see also|List of Sgt. Frog chapters}}
''Sgt. Frog'' is published in Japan by [[Kadokawa Shoten]], serialized in the magazine ''[[Monthly Shōnen Ace]]'', and was published in English by [[Tokyopop]]. The manga, first aimed at the older audience (teens/adults) from the first to the seventh volume, was toned down after the anime adaption started (since the TV series was a family show). However, the manga still maintains suggestive comedy that only the more mature audiences understand in present volumes. [[Tokyopop]] initially held the American rights to the ''Sgt. Frog'' manga until 2011 when the company ceased operations. By the time their publication ended, they had published 21 volumes. Their release of the manga have censored nipples drawn in some scenes, in order to get away from the OT (Older teen) rating and maintaining its Teen rating.{{citation needed|date=May 2015}} [[Viz Media]] relicensed the manga for digital release on December 16, 2014.<ref>{{cite news|url=http://www.animenewsnetwork.com/news/2014-12-16/viz-media-adds-mikansei-no-1-sgt-frog-hands-off-digitally/.82256|title=Viz Media Adds Mikansei No. 1, Sgt. Frog, Hands Off! Digitally|date=December 16, 2014|access-date=2014-12-22|archive-date=2014-12-26|archive-url=https://web.archive.org/web/20141226193349/http://www.animenewsnetwork.com/news/2014-12-16/viz-media-adds-mikansei-no-1-sgt-frog-hands-off-digitally/.82256|url-status=live}}</ref>

To commemorate the 20th anniversary of the series, the November issue of ''Shōnen Ace'' announced the launching of a new manga titled ''Chō Keroro Gunsō UC: Keroro Robo Daikessen'' (Super Sgt. Frog Ultra Cool: Keroro Robo's Epic Climactic Battle) on the next issue, on sale October 26, 2018. The manga is created by Yūtarō Shido, while Mine Yoshikizaki being credited as original author.<ref>{{cite web |title=Sgt. Frog Gets New Manga Series to Mark 20th Anniversary |url=https://www.animenewsnetwork.com/news/2018-09-29/sgt-frog-gets-new-manga-series-to-mark-20th-anniversary/.137306 |website=Anime News Network |access-date=26 April 2019 |date=29 September 2018 |archive-date=27 April 2019 |archive-url=https://web.archive.org/web/20190427014741/https://www.animenewsnetwork.com/news/2018-09-29/sgt-frog-gets-new-manga-series-to-mark-20th-anniversary/.137306 |url-status=live }}</ref>

===Anime===
{{Main|List of Sgt. Frog episodes}}
The anime series started airing on [[TV Tokyo]] in 2004 and ended in 2011. The anime is produced by [[Sunrise (company)|Sunrise]], [[Nihon Ad Systems|NAS]], and TV Tokyo and has also been aired on [[Animax]], [[Cartoon Network (Japanese TV channel)|Cartoon Network Japan]], and [[TX Network|TXN]]. Seven seasons have been created during its seven-year run. Unlike the manga which is aimed at older audiences, the anime adaptation has been toned down to a level suitable for family audiences.

The anime ran almost year-round, with each season beginning in the first week of April and ending on the last week of March. The first season aired on Saturdays, but the show was moved to Fridays for the second and third seasons. The show returned to Saturdays for seasons four, five and six, and the final season aired on Sundays.

The term "[[:ja:%E3%83%9D%E3%82%B3%E3%83%9A%E3%83%B3|Pokopen]]", and "Pokopenjin" are both derogatory words the Japanese historically used to describe [[China]] and [[People of China|its people]] during the [[Sino-Japanese War (disambiguation)|Sino-Japanese Wars]]; thus, they were changed to "Pekopon" & "Pekoponjin" respectively.

The first English-language dub of the show to be released was entitled ''Sergeant Keroro'' and aired on [[Animax Asia]], a pay TV channel received in multiple countries in Southeast Asia, including Indonesia, Malaysia, the Philippines, Singapore, and Thailand. It premiered in 2008.<ref>{{cite web|url=https://www.animenewsnetwork.com/press-release/2008-07-30/sergeant-keroro-premieres-tuesday-1-july-2008-6.00pm-on-animax|website=Anime News Network|title=Sergeant Keroro Premieres Tuesday 1 July 2008, 6.00pm on Animax|date=30 July 2008|access-date=3 October 2019|archive-date=27 March 2020|archive-url=https://web.archive.org/web/20200327235825/https://www.animenewsnetwork.com/press-release/2008-07-30/sergeant-keroro-premieres-tuesday-1-july-2008-6.00pm-on-animax|url-status=live}}</ref><ref>{{cite web|url=https://www.animenewsnetwork.com/press-release/2008-07-31/animax-searches-for-keroro-new-alien-friend-across-southeast-asia|website=Anime News Network|title=Animax Searches for Keroro's New Alien Friend across Southeast Asia|date=31 July 2008|access-date=2019-10-03|archive-date=2024-09-15|archive-url=https://web.archive.org/web/20240915223949/https://www.animenewsnetwork.com/press-release/2008-07-31/animax-searches-for-keroro-new-alien-friend-across-southeast-asia|url-status=live}}</ref>

In the United States, [[A.D. Vision|ADV]] had previously announced they had acquired exclusive rights to an English dub of ''Sgt. Frog''<ref name="AVI">{{cite news|url=http://www.animenewsnetwork.com/press-release/2006-11-20/adv-acquires-sgt-frog|title=ADV Acquires SGT. Frog|date=November 20, 2006|publisher=AnimeNewsNetwork|access-date=5 March 2010|archive-date=2009-09-09|archive-url=https://web.archive.org/web/20090909082259/http://www.animenewsnetwork.com/press-release/2006-11-20/adv-acquires-sgt-frog|url-status=live}}</ref> (for $408,000<ref>{{cite web| url= http://www.animenewsnetwork.com/news/2012-01-30/adv-court-documents-reveal-amounts-paid-for-29-anime-titles| title= ADV Court Documents Reveal Amounts Paid for 29 Anime Titles| website= AnimeNewsNetwork.com| date= 30 January 2012| access-date= 14 May 2015| archive-date= 25 August 2023| archive-url= https://web.archive.org/web/20230825053959/https://www.animenewsnetwork.com/news/2012-01-30/adv-court-documents-reveal-amounts-paid-for-29-anime-titles| url-status= live}}</ref>). However, on July 4, 2008, it was announced that rights to the English release were transferred to [[Funimation Entertainment]].<ref name="Funimation">{{cite news|url=http://www.animenewsnetwork.com/news/2008-07-04/funimation-picks-up-over-30-former-ad-vision-titles|title=Funimation Picks Up Over 30 Former AD Vision Titles|date=July 4, 2008|publisher=AnimeNewsNetwork|access-date=5 March 2010|archive-date=2008-07-07|archive-url=https://web.archive.org/web/20080707034228/http://www.animenewsnetwork.com/news/2008-07-04/funimation-picks-up-over-30-former-ad-vision-titles|url-status=live}}</ref>

[[ADV Films]] had originally added a brief teaser page to their website, announcing their licensing of the anime. The site turned to static before playing a short clip of Keroro dancing to "Afro Gunso," then leaving the message "hacked by the frog."<ref>{{cite news|url=http://www.animenewsnetwork.com/news/2006-11-15/sgt-frog-invades-advfilms.com|title=SGT Frog Invades ADVFilms.com|date=November 15, 2006|publisher=Anime News Network|access-date=5 March 2010|archive-date=2011-06-04|archive-url=https://web.archive.org/web/20110604151310/http://www.animenewsnetwork.com/news/2006-11-15/sgt-frog-invades-advfilms.com|url-status=live}}</ref> This was followed by a press release from ADV on November 20, 2006, stating that they had licensed all Sgt. Frog properties (except the manga, which was already licensed by [[Tokyopop]]) for the US.<ref name="AVI"/> It was once confirmed that the anime dub would be released on DVD in the United States in February 2007. However, ADV Films had never confirmed a release date.<ref>{{cite news|url=http://www.animenewsnetwork.com/news/2006-11-20/adv-films-officially-announces-sgt-frog-no-february-release|title=ADV Films Officially Announces Sgt. Frog, No February Release|date=November 20, 2006|publisher=AnimeNewsNetwork|access-date=5 March 2010|archive-date=2009-06-11|archive-url=https://web.archive.org/web/20090611121559/http://www.animenewsnetwork.com/news/2006-11-20/adv-films-officially-announces-sgt-frog-no-february-release|url-status=live}}</ref> ADV announced at the 2007 [[San Diego Comic-Con]] that the US release date had been delayed because of TV negotiations but would not comment on which networks they were talking to. In a DVD included with the December issue of Newtype USA was an English-language trailer for Sgt. Frog released by ADV, with voices for Keroro (said to be voiced by [[Vic Mignogna]]<ref>{{cite web |url=http://wha-chow.podomatic.com/entry/2010-09-15T19_46_18-07_00 |title=PodOmatic &#124; Best Free Podcasts |publisher=Wha-chow.podomatic.com |access-date=2014-06-26 |archive-date=2014-12-23 |archive-url=https://web.archive.org/web/20141223004416/http://wha-chow.podomatic.com/entry/2010-09-15T19_46_18-07_00 |url-status=live }}</ref>), Natsumi, Fuyuki, Aki, and the narrator. ADV was 90% done on getting a deal with the show, though they created a separate team to work specifically on it that included people from [[The Summit Media Group|Summit Entertainment]] (the company that worked with [[4Kids Entertainment]] during the time they had [[Pokémon (anime)|Pokémon]]). They had dubbed three episodes, but they were dubbed three times because ADV created three different pilot-packages for television to see which one worked the best. They made an otaku/fan pilot, a mass-market pilot, and a kids' pilot. They received positive responses from three different networks. [[Cartoon Network]] liked the mass-market pilot, while [[Nickelodeon]] liked the kids' pilot. Nickelodeon told them that they would air the show if ADV got the merchandising rights. However, as of July 4, 2008, the English license for the first 51 episodes of the Sgt. Frog anime was transferred to [[Funimation Entertainment]] through a deal with [[Sojitz]].<ref name="Funimation"/>

Funimation released a dubbed version of episode 12B as a test on [[YouTube]] to be reviewed by the viewers.<ref>{{cite news|url=http://www.animationmagazine.net/article/9162|title=FUNimation Posts Test Episode of Sgt. Frog|date=November 4, 2008|publisher=Animation Magazine|access-date=5 March 2010|archive-date=22 December 2008|archive-url=https://web.archive.org/web/20081222210618/http://www.animationmagazine.net/article/9162|url-status=live}}</ref> Many instances of regional name changes were observed; Natsumi is renamed Natalie, and Giroro's cat was renamed "Mr. Furbottom," (despite being female). Additionally, the word Pekopon was changed to Planet Wuss, Pekoponians were referred to as Wussians, Keron was changed to Frogulon and Keronians were called Frogulonians respectively. The extra-terrestrial frogs' names remained the same as the Japanese version, though shortened by one syllable (e.g. Keroro changed to Kero, Tamama to Tama).<ref>{{cite web|url=https://www.youtube.com/watch?v=iQ5mQPVQmZ8| archive-url=https://web.archive.org/web/20081112004443/http://www.youtube.com/watch?v=iQ5mQPVQmZ8| archive-date=2008-11-12 | url-status=dead|title=Sgt. Frog - TEST EPISODE - For Review|work=Funimation|publisher=YouTube|access-date=5 March 2010}}</ref> The test episode had mixed reviews by fans involving the voice acting, jokes, and name changes.

At Otakon 2009, the first five episodes of ''Sgt. Frog'' were screened, where the original versions of the various names that were changed were used. The voice actor for Sergeant Keroro in the test video, [[Chris Cason]], was swapped out for Sergeant Major Kululu's test actor, [[Todd Haberkorn]]. Kululu was changed to [[Chuck Huber]], and the narrator also appears to have been changed. FUNimation stated at their panel that they were going to keep the anime as similar as possible to its Japanese counterpart, and claimed to only change references from Japanese pop culture (save for those Americans were already familiar with) to references from American pop culture. Those present at the showing seemed to enjoy the changes, and the reception of the official dub was very positive. On February 19, 2011, Funimation announced at [[Katsucon]] that they had licensed more episodes of Sgt. Frog.<ref>{{cite news | url= http://www.animenewsnetwork.com/news/2011-02-19/funimation-adds-3rd-sgt-frog-anime-season | website= AnimeNewsNetwork.com | title= Funimation Adds 3rd Sgt. Frog Anime Season | date= 19 February 2011 | access-date= 14 May 2015 | archive-date= 19 May 2015 | archive-url= https://web.archive.org/web/20150519031005/http://www.animenewsnetwork.com/news/2011-02-19/funimation-adds-3rd-sgt-frog-anime-season | url-status= live }}</ref>

According to Funimation, as of February 2013, the English dub of ''Sgt. Frog'' is "now on hiatus".<ref>{{cite web |url=http://www.ustream.tv/recorded/29314084 |title=Funimation industry panel Katsucon 2013 |location=Washington, DC |author=aquastar83 |publisher=Ustream.tv |date=2013-02-15 |access-date=2014-06-26 |url-status=dead |archive-url=https://web.archive.org/web/20131213103523/http://www.ustream.tv/recorded/29314084 |archive-date=2013-12-13}}</ref>

On July 31, 2009, Funimation added the first 4 dubbed episodes of the series to their online video portal. After a considerable delay following between the release of the first dubbed episodes, Funimation began making dubbed episodes other than the first 4 available on the portal. Currently, the first 51 subtitled episodes are available on the Funimation video portal and [[Hulu]]. The 51 dubbed episodes later expired, although they were all later placed back on the portal and on Hulu.<ref>{{cite web |url=http://www.hulu.com/sgt-frog |title=Sgt. Frog |publisher=Hulu.com |access-date=2014-06-26}}</ref> The show is rated TV-PG on the DVDs and on Hulu. Unlike the other versions released outside Japan, the US version remains uncut.

The episode distribution scheme has been slightly changed from the Japanese Region 2 release. Although the first 51 episodes are known as "Season 1" in Japan,<ref>{{cite web|url=https://www.amazon.co.jp/dp/B00193ZWSW|title=Keroro Gunsou: 1st season DVD-BOX (limited edition)|date=22 August 2008|publisher=Amazon Japan|access-date=25 February 2011|archive-date=15 September 2024|archive-url=https://web.archive.org/web/20240915223920/https://www.amazon.co.jp/dp/B00193ZWSW|url-status=live}}</ref> Funimation has divided the episodes into a "Season 1" and a "Season 2". The Season 1 Part 1 DVD set was released September 22, 2009. It contains episodes 1 through 13,<ref>{{cite web|url=https://www.amazon.com/dp/B002FOQXVO/|title=Sgt. Frog: Season 1, Part 1|date=22 September 2009|publisher=Amazon|access-date=7 March 2010|archive-date=19 July 2011|archive-url=https://web.archive.org/web/20110719073353/http://www.amazon.com/dp/B002FOQXVO/|url-status=live}}</ref> Season 1 Part 2 was released on November 24, 2009, and contains episodes 14 through 26.<ref>{{cite web|url=https://www.amazon.com/dp/B002MXZYGI/ |title=Sgt. Frog: Season 1, Part 2|date=24 November 2009 | publisher= Amazon| access-date= 7 March 2010}}</ref> Season 2 Part 1 was released on January 26, 2010, containing episodes 27–39.<ref>{{cite web|url=https://www.amazon.com/dp/B002UOMGYC/|title=Sgt. Frog: Season 2, Part 1|date=26 January 2010|publisher=Amazon|access-date=5 March 2010|archive-date=19 July 2011|archive-url=https://web.archive.org/web/20110719073416/http://www.amazon.com/dp/B002UOMGYC/|url-status=live}}</ref> In addition, Season 2 Part 2 was released on March 30, 2010, containing episodes 40–51.<ref>{{cite web|url=https://www.amazon.com/dp/B0030ZOYVI/|title=Sgt. Frog: Season 2, Part 2 (2010)|publisher=Amazon|access-date=5 March 2010|archive-date=19 July 2011|archive-url=https://web.archive.org/web/20110719073330/http://www.amazon.com/dp/B0030ZOYVI/|url-status=live}}</ref> The first two boxsets were re-released into one Season 1 set on March 29, 2011.<ref>{{cite web |url=https://www.amazon.com/dp/B0049TC8DA |title=Sgt. Frog: Season 1: Todd Haberkorn, Cherami Leigh, R. Bruce Elliot, Christopher R. Sabat, Jamie Marchi: Movies & TV |website=Amazon |date=15 February 2011 |access-date=2014-06-26 |archive-date=2011-07-19 |archive-url=https://web.archive.org/web/20110719073405/http://www.amazon.com/dp/B0049TC8DA |url-status=live }}</ref> The complete Season 2 set followed up on April 26, 2011.<ref>{{cite web |url=https://www.amazon.com/dp/B004GZZH9O |title=Sgt. Frog: Season 2: Todd Haberkorn, R. Bruce Elliot, Cherami Leigh, Christopher R. Sabat, Justin Nordell: Movies & TV |website=Amazon |date=26 April 2011 |access-date=2014-06-26 |archive-date=2011-07-19 |archive-url=https://web.archive.org/web/20110719073322/http://www.amazon.com/dp/B004GZZH9O |url-status=live }}</ref> Season 3 Part 1 was released to DVD by Funimation beginning on July 26, 2011, containing episodes 52–65.<ref>{{cite web |url=http://www.rightstuf.com/cgi-bin/catalogmgr/UKW3A16LAfT9ZpuVuc/browse/item/91395/4/0/0 |title=Sgt. Frog DVD Season 3 Part 1 (Hyb) |publisher=Rightstuf.com |date=2011-07-26 |access-date=2014-06-26 |url-status=dead |archive-url=https://archive.today/20120907172958/http://www.rightstuf.com/cgi-bin/catalogmgr/UKW3A16LAfT9ZpuVuc/browse/item/91395/4/0/0 |archive-date=2012-09-07}}</ref> Season 3 Part 2 was released to DVD on August 16, 2011, containing episodes 66–78.<ref>{{cite web |url=https://www.amazon.com/dp/B0050UEVOQ |title=Sgt. Frog: Season 3, Part 2: Jamie Marchi, Leah Clark, Christopher R. Sabat, Todd Haberkorn, Colleen Clinkenbeard: Movies & TV |website=Amazon |date=23 August 2011 |access-date=2014-06-26 |archive-date=2020-03-27 |archive-url=https://web.archive.org/web/20200327235004/https://www.amazon.com/dp/B0050UEVOQ |url-status=live }}</ref> A complete Season 3 boxset containing episodes 52-78 was released on November 13, 2012.<ref>{{cite web |url=https://www.amazon.com/Sgt-Frog-Season-Andrea-Kwan/dp/B008YRL6MM/ref=sr_1_3?ie=UTF8&qid=1362817949&sr=8-3&keywords=Sgt+Frog |title=Sgt. Frog: Season 3: Andrea Kwan, Brina Palencia, Candice Moore, Colleen Clinkenbeard, Jamie Marchi, Joel McDonald, Justin Nordell: Movies & TV |website=Amazon |date=13 November 2012 |access-date=2014-06-26}}</ref> On all of the box sets, it states, "from the creators of the Gundam series". This is relatively incorrect because Sunrise did not create the Gundam series, they produced it, so it should say "from the studio that brought you Gundam". The creator of Gundam is [[Yoshiyuki Tomino]]. After the Funimation [[home video]] sets went out of print, [[Discotek Media]] re-licensed the home video rights.<ref>{{cite web|title=Discotek Licenses Dear Brother, Sgt. Frog, Kashimashi, Nyanbo! Anime|url=https://www.animenewsnetwork.com/news/2021-03-08/discotek-licenses-dear-brother-sgt-frog-kashimashi-nyanbo-anime/.170404|website=Anime News Network|date=March 8, 2021|access-date=March 8, 2021|archive-date=March 9, 2021|archive-url=https://web.archive.org/web/20210309062054/https://www.animenewsnetwork.com/news/2021-03-08/discotek-licenses-dear-brother-sgt-frog-kashimashi-nyanbo-anime/.170404|url-status=live}}</ref>

All three seasons were available on Netflix streaming as of December 2011; however, the first two seasons, and the first half of the third, were removed without warning in January 2013,<ref>{{cite web |url=https://movies.netflix.com/WiMovie/Sgt._Frog/70200639?locale=en-US |archive-url=https://web.archive.org/web/20120717074719/http://movies.netflix.com/WiMovie/Sgt._Frog/70200639?locale=en-US |url-status=dead |archive-date=2012-07-17 |title=Sgt. Frog |publisher=Netflix |access-date=2014-06-26 }}</ref> before the series was completely removed in April of the same year.

On January 7, 2014, it was announced that a new [[flash animation|Flash]] anime television series entitled "Keroro" would premiere on [[Animax]] on March 22 of that year.<ref>{{cite web|url=http://www.animenewsnetwork.com/news/2014-01-07/new-sgt-frog-tv-anime-slated-for-march-22|title=New Sgt. Frog TV Anime Slated for March 22|publisher=[[Anime News Network]]|date=January 7, 2014|access-date=August 6, 2014|archive-date=September 15, 2024|archive-url=https://web.archive.org/web/20240915223926/https://www.animenewsnetwork.com/news/2014-01-07/new-sgt-frog-tv-anime-slated-for-march-22|url-status=live}}</ref> Haruki Kasugamori is the director of the series at Sunrise and the animation studio Gathering is providing assistance with the animation. The series airs during the programming block, Keroro Hour, which airs both the series and reruns of Sgt. Frog. The series features new character designs and includes the characters, New Keroro, Tomosu Hinohara, and Myō Kaneami, all of which were originally manga-only characters. The opening to the series is "Keroro☆Popstar" (ケロロ☆ポップスター), performed by [[Mayumi Gojo]]. The flash anime ended on September 6 of the same year, with a total of 23 episodes.

On April 1, 2024, it was announced through a video that the series would receive a new anime project produced by [[Bandai Namco Pictures]] in commemoration of the anime's 20th anniversary. Many of the original cast are reprising their roles.<ref>{{cite web|last=Pineda|first=Rafael Antonio|url=https://www.animenewsnetwork.com/news/2024-03-31/sgt-frog-manga-gets-new-anime-project-celebrating-20th-anniversary/.209428|title=Sgt. Frog Manga Gets New Anime Project Celebrating 20th Anniversary|publisher=[[Anime News Network]]|date=March 31, 2024|access-date=April 1, 2024|archive-date=April 1, 2024|archive-url=https://web.archive.org/web/20240401015111/https://www.animenewsnetwork.com/news/2024-03-31/sgt-frog-manga-gets-new-anime-project-celebrating-20th-anniversary/.209428|url-status=live}}</ref>

===Films===

Five full-length theatrical movies that were directed by [[Junichi Sato]] and produced by Sunrise were released:

* {{Nihongo|''[[Keroro Gunsō the Super Movie|Super Movie Keroro Gunsou]]''|超劇場版ケロロ軍曹|Chō Gekijō-ban Keroro Gunsō}} (2006)
* {{Nihongo|''[[Chō Gekijōban Keroro Gunsō 2: Shinkai no Princess de Arimasu!]]''|超劇場版ケロロ軍曹2 深海のプリンセスであります!|Chō Gekijō-ban Keroro Gunsō 2: Shinkai no Purinsesu de arimasu!}} (2007)
* {{Nihongo|''Keroro Gunso the Super Movie 3: Keroro vs. Keroro Great Sky Duel''|超劇場版ケロロ軍曹3 ケロロ対ケロロ天空大決戦であります!|Chō Gekijō-ban Keroro Gunsō 3: Keroro tai Keroro, Tenkū Daikessen de arimasu!}} (2008)
* {{Nihongo|''[[Keroro Gunso the Super Movie 4: Gekishin Dragon Warriors]]''|超劇場版ケロロ軍曹 撃侵ドラゴンウォリアーズであります!|Chō Gekijō-ban Keroro Gunsō: Gekishin Doragon Woriāzu de arimasu!}} (2009)
* {{Nihongo|''[[Keroro Gunso the Super Movie: Creation! Ultimate Keroro, Wonder Space-Time Island]]''|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!!|Chō Gekijō-ban Keroro Gunsō: Tanjou! Kyuukyoku Keroro, Kiseki no Jikuu-jima, de arimasu!!}} (2010)

===Planetarium===

An exclusive feature only available for limited time at specific Planetariums was released after the end of the show.

* {{Nihongo|''Keroro Gunsō the Super Movie: Take Back the Starry Sky! The Great Chase in the Solar System!!''|超投影版 ケロロ軍曹 星空をとりもどせ！ 太陽系大追跡であります！！|Chō Tōei-ban Keroro Gunsō Hoshizora o Torimodose! Taiyōkei Daitsuiseki de arimasu!!}} (2014)<ref>{{cite web|url=http://www.sunrise-inc.co.jp/works/news/news.php?offset=10&title=416&genre=0|title=SKIPシティ 彩の国ビジュアルプラザにて、『超投影版 ケロロ軍曹 星空をとりもどせ！ 太陽系大追跡であります！！』夏休み特別上映決定！！|language=ja|publisher=[[Sunrise (company)|Sunrise]]|date=August 2, 2014|access-date=April 22, 2016|archive-date=May 6, 2016|archive-url=https://web.archive.org/web/20160506083241/http://www.sunrise-inc.co.jp/works/news/news.php?offset=10&title=416&genre=0|url-status=live}}</ref>

===Spin-offs and guest appearances===

* Spin-offs include a manga called ''Musha Kero'' that has recently been adapted in the anime.<ref name="Musha Kero">{{cite episode |title= Musha Kero Volume One: Legendary Hero, De gozasoro! |series= Keroro Gunsou |station=TV Tokyo |season=5 |number=211 }}</ref> The series has spawned a magazine called ''[[Keroro Land]]'' that promotes toys, games, media, and events based on the manga and anime.
* Sgt. Keroro, Tamama, Giroro, Dororo and Kululu make cameo appearances in the 1st movie of ''[[Kaiketsu Zorori]]''. 
* Keroro and Tamama have appearances in the OVA of ''[[Lucky Star (manga)|Lucky Star]]'', and Kagami spends almost all her money on a grip-claw game trying to get a Keroro doll. 
* Japanese action RPG game ''[[Monster Hunter Tri G]]'' has downloadable costumes of Keroro for the humanoid companions Kayamba and Cha-Cha.
* Keroro, Giroro, Tamama, Kururu and Dororo appeared as playable characters in the Nexon mobile game ''[[Kemono Friends]]''. The characters were added during a collaboration event. Like the animal characters in the game, the Keronians [[Moe anthropomorphism|take the form of human girls]]. Enemy monsters called "Ceruleans" also appear, taking the forms of Natsumi and Keroro herself.<ref>{{cite web|url=http://www.4gamer.net/games/289/G028923/20150327061/|title=「けものフレンズ」，「ケロロ軍曹」コラボ開始。限定キャラと特別イベント登場 - 4Gamer.net|language=ja|date=March 27, 2015|access-date=March 25, 2018|archive-date=July 16, 2017|archive-url=https://web.archive.org/web/20170716002601/http://www.4gamer.net/games/289/G028923/20150327061/|url-status=live}}</ref> Mine Yoshizaki, the creator of ''Sgt. Frog'', is also the concept designer of the ''Kemono Friends'' franchise.

==Video games==
Many of the video games were only released in [[Japan]], but there were others released in [[Korea]].

{| class="wikitable sortable"
|-
! Game
! Console
! Date
|-
| ''Keroro Gunsō: Otoshimasu''
| [[Windows]]
|  August 17, 2004
|-
| ''Keroro Gunsō: MeroMero Battle Royale''
| [[PlayStation 2]]
|  September 30, 2004
|-
| ''Keroro Gunsō Taiketsu! Gekisō Keronprix Daisakusen de Arimasu!!''
| [[Game Boy Advance]]
|  December 9, 2004
|-
| ''Keroro Gunsō: MeroMero Battle Royale Z''
| [[PlayStation 2]]
|  November 17, 2005
|-
| ''Chō Gekijō-ban Keroro Gunsō: Enshū Dayo! Zenin Shūgō''
| [[Nintendo DS]]
|  March 16, 2006
|-
| ''Keroro Gunsō: Enshū Dayo! Zenin Shūgō Part 2 ''
| [[Nintendo DS]]
|  February 22, 2007
|-
| ''Mitsukete! Keroro Gunsō: Machigai Sagashi Daisakusen de Arimasu! ''
| [[Nintendo DS]]
|  September 27, 2007
|-
| ''Chō Gekijō-ban Keroro Gunsō 3: Tenkū Daibōken de Arimasu! ''
| [[Nintendo DS]]
|  February 28, 2008
|-
| ''Chō Gekijō-ban Keroro Gunsō: Gekishin Dragon Warriors de Arimasu!! ''
| [[Nintendo DS]]
|  February 19, 2009
|-
| ''[[Keroro RPG: Kishi to Musha to Densetsu no Kaizoku]]''
| [[Nintendo DS]]
|  March 4, 2010

|}

==Reception==
In 2005, the manga received the 50th [[Shogakukan Manga Award]] for [[Children's anime and manga|children's manga]].<ref name="ShogakukanAward">{{cite web | url=http://comics.shogakukan.co.jp/mangasho/rist.html | script-title=ja:小学館漫画賞: 歴代受賞者 | publisher=Shogakukan | language=ja | access-date=August 19, 2007 | archive-date=January 9, 2010 | archive-url=https://web.archive.org/web/20100109115811/http://comics.shogakukan.co.jp/mangasho/rist.html | url-status=dead }}</ref>

==Notes==
{{notelist}}

==References==
{{Reflist}}

==External links==
* [http://www.keroro.com/ Keroro Gunsō website] {{in lang|ja}}
* [http://sunrise-inc.co.jp/keroro/ Sunrise's Keroro Gunsō website] {{in lang|ja}}
* [http://www.tv-tokyo.co.jp/anime/keroro/ TV Tokyo Keroro Gunsō website] {{Webarchive|url=https://web.archive.org/web/20121029174343/http://www.tv-tokyo.co.jp/anime/keroro/ |date=2012-10-29 }} {{in lang|ja}}
* [http://www.keroro-movie.net/ Official Keroro Gunsō Movie Website] {{in lang|ja}}
* [https://web.archive.org/web/20070930041228/http://www.tv.com/keroro-gunso/show/32077/episode_guide.html Keroro Gunsō episode guide]
* [http://www.funimation.com/sgtfrog Sgt. Frog's Official English Website]
* {{anime News Network|manga|2866}}

{{Sgt. Frog}}
{{Monthly Shōnen Ace}}
{{Shogakukan Manga Award - Children}}
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