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For the series, see Keroro Gunso. For other uses, see all pages starting with Keroro.

Keroro (ケロロ) is the main protagonist of Mine Yoshizaki's Keroro Gunso series. Keroro is a sergeant (軍曹 gunsou)[RANKS] and the leader of the Keroro Platoon (ARMPIT Platoon in the Funimation dub). His formal introduction is The Gamma Planetary System, the 58th Planet, Space Invasion Army Special Tactics Platoon Leader, Sergeant Keroro (ガマ星雲第58番惑星 宇宙侵攻軍特殊先行工作部隊隊長 ケロロ軍曹 であります Gama Seiun Dai Gojuuhachiban Wakusei, Uchuu Shinkougun Tokushu Senkou Kousaku Butai Taichou, Keroro Gunsou de arimasu)


Physical Appearance

Keroro's Star symbol

Keroro is an adult Keronian with green skin and a yellow star on his belly. The star insignia on his hat is red.

Whenever Keroro is caught in an explosion he is seen with a large comical black afro (for comedic effect and actual headgear in some cases) which is a call to the anime's first ending sequence "Afro Sergeant". It has become a running gag throughout the series and even spans to the other members of the platoon. Later on in the series we see that Keroro's mother has hair that closely resembles his afro in shape and color, so whether the afro is an homage to his mother or not is purely speculation.

He has a talent for dress-up and disguises (if you could call it a talent), and is seen throughout the series with different wigs and costumes in attempts to impersonate character archetypes for various schemes, and even utilizes Pekoponian Suits in order to blend in outside the house.

He is never also seen with eyebrows, outside of comedic effect and dramatic scenarios. Keroro claimed that he cut one of his eyebrows to force himself to train after a defeat in the finals of the Sergeant Martial Arts Tournament Kero 1 Grand Prix, only returning to civilization once it had grown back again[3], although this story is questionable at best.


His blood type is O. His body fat percentage is 30%[4]. He is 55.5 centimeters tall (1.8 ft) and weighs 5.555 kilograms.

According to Volume 25 of the manga, Keroro is 10500-years-old in Keronian years. Keroro knew Angol Mois since she was a young child, and was already an adult at this point. This would make Keroro at least 500 years old, and he is portrayed to be older than she is.

Kumiko Watanabe has stated that she played Keroro as someone who was about 45 years old. Keroro described himself to be a child when Nintendo started selling the Game & Watch systems[5], which would place him somewhere between his late 20's and early 30's, considering the series' starting date. In the anime, he also seems to be around the same age as Pururu, having studied together, who had her birthday assigned as July 1st, 1970 (Keronian calendar)[6].


Keroro mostly speaks in the first person. He refers to himself as waga hai (我が輩, I) in Japanese.

Keroro usually ends his sentences with de arimasu (であります), which roughly translates to 'that is it' and is a standard military sentence ending. Keroro says a repeating gerogero (ゲロゲロ) when resonating. Whenever Keroro is scheming, he emits a raspy Ge~ro gero gero... (ゲ~ロゲロゲロ…) or Gero Gerori (ゲロゲロリ).

In the Funimation dub, he usually uses "frog" in the place of profanity along with some of his platoon members; for example, "What the frog" or "Oh my frog" have been used frequently.


Although Keroro is the leader of the Keroro Platoon, he does not possess any leadership skills, having lost most of his interest in invading Earth after losing his Kero Ball and moving in with the Hinata family. Instead, he prefers to read manga, watch television, and build Gundam models, possessing an impressive collection within the platoon's headquarters, much to the chagrin of his fellow platoon members. He has also been shown an interest in collecting race car models in the anime, but he was never shown interacting with them.

Keroro throwing a tantrum

Keroro has also shown to be immature, often crying and throwing tantrums when things do not go his way, such as when he was refused a piece of star fruit.

Despite his lazy demeanor, Keroro has shown to be a very capable and dangerous leader when under the right conditions. One such instance is when there is enough humidity in the air, causing Keroro to revert to a previous state from "Back Then". In this state, he becomes competent and ruthless, but overexposure to the moisture in the air can also cause Keroro to attack others, whether they friend or enemy. The only way he can revert to his normal self is if he is eaten by a Nyororo or if Fuyuki is furious at him.

He is also shown to have a constant need to entertain the masses, and in an attempt at comedy, would slip on a banana peel whenever he sees it on the ground.[7] In the Funimation dub, the narrator says he does this because he has an acute case of Hilarity-itis.


Keroro's energy ball KinKin Keronpa

Because of his everyday life as the house keeper in the Hinata household, Keroro is an exceptional cleaner and curler. He became a natural at curling because of all the excessive sweeping Natsumi makes him do.

Though Keroro often appears to display no combat prowess whatsoever, he was responsible for the scar across Giroro's eye, [8]and in the "Birthday Blitz" encounter in the manga, Keroro easily took out Tamama with a jump kick and snuck up to Kururu, locking his arm up in a hold and threatening to break it.

If Keroro is exposed to an environment with high humidity, he will slip into a state of mind where he is his former self from "Back Then". During which, he will act as a more competent captain, issuing Natsumi's restrain and going forth with the invasion of Pekopon. During this state in the anime, he has the power to throw energy balls. The only things that can free him from this mania is either Fuyuki's rage, or an attack by a Nyororo.

Keroro also gains a burst of energy whenever he eats Starfruit, which, according to Kururu, many qualities of Keronian medicine. Keroro has proven himself a brilliant military commander or military genius when he applies himself, which is hardly often.


According to the anime in Episode 123, Keroro's biggest fear is his own father. His others fears are broken Gundam models, the invasion timer running out, and overstocking the Valentines candy (according to the fact that Keroro freaks out when he sees these items in Episode 123).

Keroro is easily manipulated by the people he cares about; Fuyuki is able to get him to drop everything he's doing with just a few simple guilt-trip words such as, "But aren't we friends?!"

In addition he has a tendency to purposely slip on banana peels, due to his actor personality. He also has a fear of banana slug aliens (as shown in Episode 69). Keroro is also a drooling otaku for all things Gunpla, which is by far his biggest weakness.

Along with the other members of the Keroro Platoon, Keroro is afraid of the Butt Firecracker (ケツ爆竹), and he will clutch his butt tightly whenever he is mentioned.

Like almost all other Keronians, he hates Nyororos and Vipers.


For More Information see Chibi Keroro

Long ago on Planet Keron, Giroro, Pururu, and Zeroro were the childhood "best friends" of Keroro. Keroro had a "Go to the place where one is told not to go, and enter the place where one is told not to enter" way of life, which often led the four friends on numerous, often dangerous adventures.

Inspired by his father, a famed war veteran, Keroro set his sights toward becoming a soldier. He would often wear a fake Keron star on his chest, hopeful of becoming a captain. Like many Keronian children, Keroro spent much of his youth in military school.


Keroro's Father

Keroro has both a fear and an admiration for his father. His father is noted as a famous Keronian Soldier, and Keroro strives to be like him. Whenever he is mentioned Keroro will do whatever he can to try and make his father proud of him, and he holds great joy when he does mention how proud of him he is.

Keroro's Mother

Keroro loves his mother dearly as well. He doesn't seem to be afraid of her, and despite constantly telling her not to worry about him, he secretly appreciates it. When Aki was in charge of the invasion of Pekopon, he cried after getting mentally scolded by her and when his mother (actually Natsumi) started spanking him he seemed quite shocked.

Keroro's Grandfather

When Keroro was younger he would listen to his grandfather's stories about Nontruma and how fearsome they were.

Fuyuki Hinata

Upon their first meeting, Fuyuki took an interest in Keroro. They eventually bonded, Fuyuki becoming Keroro's partner and he often stays and helps Keroro, sometimes unwillingly. Keroro also appears to worry about him greatly, and whenever he is in danger Keroro will instantly go to rescue him.

Natsumi Hinata

Natsumi and Keroro are constantly fighting either because Keroro tries to invade Earth or because he didn't do his household chores. Natsumi developped the habit of calling Keroro "Bokegaeru (Stupid frog)" instead of his name. They show an intense rivalry similar to that of a brother and sister. However, Natsumi does care about Keroro, as evidenced in many episodes.

Aki Hinata

Aki showed an admiration for Keroro, and was inspired by their look for an idea of a new manga. She now considers Keroro and the rest of the Platoon them as part of her family. She treats him much kinder then Natsumi, and she enjoys all the wacky adventures he may put her through. When she was younger, she appeared to like Keroro and conjured whether or not she should act like Fuyuki and stay with Keroro. [9]

Dororo/Zeroro, Giroro, and Pururu

Dororo and Giroro have been friends with Keroro since childhood. Keroro often led the two on adventures and playdates, as well as getting into trouble, especially when he exploited Dororo (Zeroro at the time). Pururu later joined their group, they have since remained together until adulthood when they separated. Keroro developed a crush on Pururu after they met again.


Tamama has a huge admiration of the sergeant, affectionately calling him "Gunsou-san" ( Mr. Sergeant Sir in the Funimation dub). Keroro, however, remains almost 100% unaware of his twisted admiration of him. Tamama often goes to extremes to try and earn his affections. Despite this, Keroro considers him a faithful subordinate and friend. There is one instance where Keroro might get it that Tamama loves him in Episode 293 when he reads a fan letter saying that Tamama admiration Keroro is perverted. Although Tamama has a huge admiration that is sometimes twisted on Keroro, Keroro doesn't really see it that way, only seeing Tamama as a close friend and one of his greatest supporters.


While Keroro and Kururu don't appear to see each other as friends they appear to be very close to each other either way. Kururu usually goes along with Keroro's scatterbrained plans and he will create the inventions no questions asked. Kururu also tends to treat him with respect, as in the episode where he messed with everyone's items he gave Keroro a super rare Gundam model. Keroro even goes as far as singing a song about how great Kururu is in the Funimation dub of the episode.

Angol Mois

When Mois was younger, she and Keroro played together. After they meet again in Pekopon, Mois started to call Keroro "Oji-sama" (Uncle) as a result of their bond. She remains in the platoon, serving as a general maid and secretary to the Platoon. She also harbors romantic feelings for Keroro, however he does not return these feelings and seems to be completely unaware of them. Nonetheless, he cares for her as much as he does the rest of his friends. However, there were hints in the series that Keroro might have a feelings for Mois such as when he affectionately kissed Mois in part A of Episode 266.


In Episode 304, Keroro met her when his hat blew away from the wind while Keroro was doing laundry. Kitten found the hat and gave it to Kana. Keroro asked her for his hat, but Kana didn't want to. Later, Keroro returned to her house to ask again. Kana then promised to give his hat back before she moves away. But the next day, two boys took it from her at school and told Keroro, Fuyuki, and Natsumi. They went out to find it. They found the two boys and they told Kana that the hat had a hole. Later Kana told Keroro that she will fix it for him. Before she left she promised she would never forget Keroro, and the same for Keroro.

Calling Keroro

Name What they call Keroro What Keroro calls them
Giroro Keroro; Sergeant, Soldier (Funimation Dub) Giroro (-gochou, -kun) / Aka () / Aka Daruma / Pot head (one)

Corporal, What’s-His-Face (Funimation Dub)

Tamama Gunsou-san/Mr. Sergeant (anime, dub) Tamama (-nitou, -kun, -nitouhei) Private T, Baby Blue (Funimation Dub)
Kururu Leader, Taichou (Keroro), Kekero-kun, Ke-Kero-Kun Kururu (-souchou, -kun), Curry Prince, Ki-chan

Nutjob (Funimation Dub, Episode 46)

Dororo Captain-dono (隊長殿 Taichou-dono), Keroro-kun Dororo (-heichou, -kun), Doronuma-kun, Dororo ninja-kun, Dorobune-kun, Zeroro (-kun) (Keroro's trauma mode), Dorodie, Doropie, Dorotanno ninja What's-his-face (English dub), Dororo-Sama, Dorodango-kun, Torankusu (Trunks)-kun,
Fuyuki Hinata Gunsou Fuyuki-dono, Fuyuki (Funimation Dub)
Natsumi Hinata Bokegaeru/Stupid

frog; Stupid frog and a whole bunch of other names (Funimation Dub:

Natsumi-dono (rebel side: Natsumi Hinata)
Aki Hinata Kero-chan, Sugar Smacks (anime) Mama-dono, Captain (Manga)
Akina Hinata Kero-chan Admiral-dono
623 Keroro, Gunpla freak 623 (Mutsumi)-dono
Mutsumi Saburo Gunsou Saburo-dono
Momoka (right side) Kero-chan / Gunsou-san / Keroro-san (anime) Momoka-dono
Momoka (opposite side) Keroro/Bokegaeru
Angol Mois Uncle-sama (おじさま Oji-sama) Mois-dono, Mois-chan, Lady Mois (English Dub)
Koyuki Azumaya Keroro-san, Dororo's friend Koyuki-dono
Paul Moriyama Keroro-dono Paul-dono
556 Keroro 556 (Kogoro)
Lavie Keroro-san Lavie-dono
Omiyo Keroro-san Yuurei-chan (when he did not know about her yet) Omiyo-san
Garuru Sergeant Keroro, Keroro-kun First Lieutenant Garuru (-dono)
Pururu Sergeant Keroro, Keroro-kun Chief Medic Pururu, Pururu-chan
Keroro's Father Keroro Chichiue (父上)
Narrator (Keroro) Gunsou, Keroro-san Narrator-dono, Narrator-san
Kana Okina kaeru (Big Frog) Kana-dono
Shion Keroro-san, Monsieur Keroro Shion-dono
Kitten Neko-dono
Keroro's Mother Keroro Mother (Hahaoya)
Poyon Keroro Gunsou Space Police Officer Poyon-dono
Sumama Keroro-San Sumama-dono
Gebaba Kero Geba-P
Suitooru Keroro Suitooru-San
Maru Bokegaeru Maru-Dono
Karara Keroro Karara-ojousama
Shin Keroro Oji-San (Uncle) Shin
Viper Momi Keroro-Gunso Viper Momi
Zoruru Sergeant Keroro Lance Corporal Zoruru
Moano Uncle Moano-Dono
Jirara Gunso Captain Jirara

Pekoponian suits

Robotic suits used by Keroro to blend in with Earth's population. However, his face is left uncovered. If questioned about it, he claims that his face is a mask. In the manga, there's a limited number of variations and all of them are named, while in the anime new models constantly appear without any introduction, although there are a few exceptions.

Name Description
Pekoponian Suit Mk-I A suit modeled on a officer worker. Unlike the later models, which were produced by Kururu, this one came from Tamama.

Pekoponian Suit Mk-III

A muscular suit that keeps the colors and personal mark of a Keronian in spite of its human shape.

In the anime, it's eventually confused with a super hero suit when Keroro accidentally gets in the way of a thief.[10]

Pekoponian Suit Mk-IV Bear Killer The Pekoponian Suit Mk-IV Bear Killer(地球人スーツMk-IV“熊殺し”仕様) is a clunky armored combat suit used by Keroro in the manga to fight against a bear prepared by Kururu. However, once it falls on its back, it can't get up anymore.[11]
Specialized Battle Pekoponian Suit Mk-V The Specialized Battle Pekoponian Suit Mk-V(戦闘専用地球人スーツMk-V) is a new combat suit Keroro uses in New Year's Day, while believing that Earth had been invaded by other aliens. It's supposedly powerful, but never showed its power.[12]
Pekoponian Suit Mk-VI A modified version of the original Pekoponian Suit, but in casual clothes. It's designed to have no presence and assimilate into the background. However, the user's head still stands out, making it a failure.[13]

Although it appears in the anime, the description of its name and abilities are omitted.[14]

Pekoponian Suit (First Dangal Type) Anime-exclusive suit. It was made for a cosplay competition, resembling a human sized version of the Dangal, with its head replaced by Keroro's. It comes with a helmet that can completely cover Keroro's face, unlike other Pekoponian suits. Although it carries beam saber hilts, they're only props unusable for combat.[15]
Ultimate Pekoponian Suit Anime-exclusive suit. It's the original Pekoponian Suit Mk-I with the "Ultimate In-Character Device" attached to it. The appearance is the same, aside from a small display on its back, which describes its current role. While wearing this suit, Keroro forgets his own identity, acting completely in-character as a 24 years old Pekoponian office worker. He even believed that his face was just a mask that somehow had gotten stuck. Removal from the suit immediately restores Keroro's memories and personality.[16]
Pekoponian Suit (Housewife Type) Anime-exclusive suit. It resembles a short and overweight middle aged woman.[17]

Costumes and Transformations

Name Description Image Debut
Afro Sergeant Keroro in an afro wig, funky disco clothing complete with fringes and glitter. He ends his sentences in "Me-ow!" and is a victim to uncontrollable dancing. This is parody of Dance Man, who in turn wrote the theme song, Afro Sergeant. Keroro also inexplicably wears his afro whenever he becomes burnt. Tumblr m5dy31Y4eq1qhe6ia.gif Episode 4
"Super" Keroro Keroro's helmet changes as a parody of Son Goku's super saiyan or Sonic's super form. If this form changes his power level or not is unknown, however it does allow him to move 4 times his normal speed as well as give him flight abilities. He first used it in the manga to rescue Tamama from "Dark Momoka" when both character's first officially debut.
Chibi Keroro Young Keroro appears many times, such as in Chibi Kero: Secret of the Kero Ball!? and the ending sequence for Spinning, Turning, Once Around.
Episode 4
Keroro from "Back Then (あの頃ケロロ Anokoro Keroro) Keroro's body becomes glossy when the humidity of the environment has reached a level higher than that of Keron. "Back then" is the time when Keroro still lived in Planet Keron. His combat, power, and intelligence increase threefold, as evidenced by Keroro's ability to take down Natsumi with but a whisper into her ear. However, because of his strengthened biological reaction, it is easy for him to be discovered by hostile space aliens such as Viper and Nyororo (Sucks the moisture out of him). His speaking style also changes during this form. In Part B of Episode 127 of the anime, parodies of Ultimate Muscle and Mobile Fighter G Gundam are seen when Keroro enters this stage.
Space Junji (宇宙淳二 Uchuu Junji) Keroro takes this "Junji Form" when telling scary ghost stories. He even dons his mustache.
Captain Keroro A younger Keroro appears as the new leader of the Garuru Platoon, Captain Keroro (ケロロ大尉 Keroro Taii, Clone Keroro in the manga)[RANKS][18][19][20].

In the manga, this Keroro is a clone of the original Keroro but in anime, he is brainwashed by Garuru.

In both, he wears Char Aznable's helmet in place of the original ones and becomes more sinister than before, willing to kill both Fuyuki and Natsumi when the Garuru Platoon tried to invade Earth in place of Keroro Platoon. In the anime, he returned back to normal after briefly regressed to his juvenile state and return to his normal appearances.

Lieutenant Colonel Keroro.jpg
Keroshiki Soldier (ケロしきグンじん)
Kerokko Aozora (青空ケロ子 Aozora Kerokko) During summer, Keroro joins a contest at Doinaka beach.
Fake Nemo (ネモもどき Nemo modoki) Episode 20
Keroro Kaiser Z (ケロロカイザーZ Keroro Kaizā Z) A parody of Mazinkaiser and Mazinger z. Episode 24-B
Fake Chigusa Tsukikage (月影千草もどき Tsukikage Chigusa modoki) Episode 29-A
Captain James Hook (ジェイムズ・フック船長 Jeimuzu Fukku Senchou) Episode 29-A
Fake Char Aznable (シャア・アズナブルもどき Shaa Azunaburu modoki) [21] Episode 30
Full Armor Keroro (フルアーマーケロロ Furu Āmā Keroro) When Keroro enters this stage, his whole body is heavily equipped. He transforms into this stage by pressing the star on his forehead. However, its only weak point (which Giroro immediately exploits) is the head, which is completely bare. The sequence this form is used in is a reference to Gundam NT-1 "Alex" of Mobile Suit Gundam 0080: War in the Pocket, as the weapons seen on the armor resemble those of Kämpfer.
See also: FA-78-1 Gundam Full Armor Type
Encounter 31 (manga), Episode 43-B
Match Girl (マッチ売りの少女風) Some of Keroro's imagination when he can't sell any sweet potato dangos (ikinari dangos). It is from the story of the Little Match Girl.
Kosuke Kindaichi Episode 54-A
General Keroro (ケロロ将軍 Keroro Shogun)[RANKS] Episode 55-B
Madame Kero (おケロ夫人 O-kero fujin) Keroro claims to be a tennis master when dressed like this, acting like a wannabe high class girl. He's actually cosplaying as Reika Ryūzaki, the Madame Butterfly from Aim for the Ace!, including carrying her R.R. initials in his racket. Keroro Tenis outffit.png Episode 56-A
Kerohachi Kerono (ケロ野ケロ八 Kerono Kerohachi) Episode 63-A
Boss (ボス Bosu) Episode 65-A
Meroro (メロロ Meroro) The disguise used by Keroro to infiltrate Dark Keroro's forces. He acts like a stereotypical foreigner in love with Japanese culture, and claimed to love sukiyaki, sushi and Gunpla... or tempura.[22] Where's Keroro here i am.png Movie 3
Kerokko (ケロ子 Kerokko) Episode 66
Galaxy Group Grunt When Mutsumi sent Fubuki Sakuragasaki to face Keroro in an Arcade Game challenge with Earth's fate on the line, he also changed Keroro into this form, which mimics the appearance of low ranking members of the antagonists of Arcade Gamer Fubuki to hide Keroro's true form. Keroro v16 c135 02.jpg Encounter 135
Dragon Keroro During the fourth movie, Shion turns Keroro into a green dragon. The upper part of his head is darker green with two straight horns, a yellow crest with a red star symbol, and yellow flaps like the ones Keroro has in Keronian form. He has an crooked yellow star symbol. When he first turned into a dragon and lost his mind, he was able to defeat the entire platoon singed-handed. He can produce blasts of fire which he calls Keroro Fire, project a star-shaped force field, and can pull out random items like a hammer with the insignia of France. Dragon Keroro is also seen in Episode 356.

In the manga, Keroro gains the ability to transform into this form thanks to the power of the Keron Star. This transformation is named Warrior Style in the manga, following a similar nomenclature to Shin Keroro's Style changes. Keroro first activated the form thanks to extreme humidity, which led to a partial transformation, and Fuyuki being in danger, completing it. Afterwards, he managed to activate it again by slipping on a banana peel and hitting his head, which seemed to make him more focused temporarily. He fought Black★Star but ultimately lost. Keroro still can't take the form at will under usual conditions, although he can do so with the help of Myou Kaneami's ability to awaken hidden powers.

Keroro Dragon by AdmiralHowl.jpg Movie 4
Akira Introduced as a singing dancing idol invader part of Operation Maru-Otsu (〇乙), Akira is actually Keroro controlling an android via the Invasion Substitute System, where the users control the androids using full-body suits in a special control room hidden within the Keroro Platoon Headquarters. The system was developed by Kururu having previously done research on what Pekoponian girls preferred in men. Akira.png Episode 320-A
Runaway Keroro Runaway Keroro is the name given to Keroro under the control of Myou. He first appears in Chapter 189, after Myou comes over to visit, along with Tomosu Hinohara. He appears to be very rebellious, having defeated Natsumi, and is extremely insane. He was also released as a charm with the ordering of Volume 23. Cute key charms I wnat all of them.jpg Encounter 189
Friend Keroro Also known as Keroro Girl Type. In a collaboration with the Kemono Friends mobile game, Keroro and his platoon take on female human forms due to the effects of a mysterious substance known as Sandstar, changing their physical appearances, voices, and personalities.

Unlike the other platoon members, Keroro's speech style remains the same. However, she can show off her domestic skills without a sign of laziness, and aspires to be an exemplary female soldier.

She is voiced by Kanae Itō.

Keroro Friend c264 01.jpg Kemono Friends
Handsome Keroro In a collaboration with the Smiral merchandising label, in order to obtain more invasion funds, the Keroro platoon become handsome men due to an invention created by Kururu to become popular with girls. Smiral Collab Animate Girls Festival 2019 01.jpg Handsome Keroro Gunso Invasion Operation


Keroro's name comes from "gero" (ゲロ), the Japanese onomatopoeia for ribbit.


  • In 10 years, if Keroro goes without shaving, he will grow a white beard. (Episode 234-b)

    Keroro holding the Riddle Champ Trophy

  • Keroro might be a great dancer. He says he had mastered "Dance Dance Revolution".
  • Keroro has also stated that he is really good at riddles. He says that he won the 556th Space Riddle Tournament. (Episode 95)
  • Keroro (possible along with Tamama) might have something uprising under their hats. In Episode 316 when Momoka switched souls with the Sergeant, Keroro's hat fell off and Momoka was surprised to see what Keroro looked like without the hat.

    Keroro with his burnt head

  • In the 7th volume of the manga, you can see Keroro without his hat for it had burnt off, but his head is too charred to see it clearly.
  • He seems to like the color pink since whenever he wears his pajamas, it's always pink.
  • He can play soccer really well, even taking it to extreme lengths by cheating his way to victory.
  • In the manga, he has to wear a "Power Limiter" during the monsoon season because Keroro becomes crazy due to the high humidity level. (Volume 9)
  • His name was Jan Keroodo Sukaarento Azunaburu Third ZZZ Gunsou for a brief time.
  • Keroro likes Macintosh.
  • He can roll up into a perfect ball and can attain high speeds while in this form. (Episode 2),but he wasn't seen doing it ever since that episode.
  • Keroro, along with Dororo and Giroro, won 1st place in Kerorobics Dancing.
  • He can apparently shoot eyebeams. (Volume 15 encounter 122)
  • Despite small controversy, Keroro does not smoke at all, even though he is seen with a cigar in his mouth a few times. It is never lit and is used to make Keroro look more professional.
  • Aside from a slight crush on Pururu, Keroro has a crush on Sumomo.
  • In most of Season 1, Keroro (and some other frogs) had a whole different appearance than their current appearance. Their pupils were almost as big as their sclera (white part of the eye), their mouths were wider, their tails were pointy, and their hats were flopped down.
  • Keroro is shorter than Giroro, who is 2.2 ft tall.
  • Keroro appears to be a very loving father figure as he treated both Kiruru. and Babubu extremely well. He took great care of them, trusted them with his precious gundam and even fought to keep them with him.
  • Keroro pours canned coffee over the pages of old Shonen Alpha that he's going to throw away to prevent people from taking them and reading them.

Keroro's Name in Different Languages

Country Name (National) Name (Translated)
Chinese (Simplified) Keroro军曹 Keroro Jūn cáo (Keroro Gunso)
Chinese (Traditional) Keroro 軍曹 Keroro Jūn cáo (Keroro Gunso)
Korean 케로로 중사 Kelolo Jungsa (Sergeant Keroro)
Hebrew קפטן קררו Cepten Kerero (Captain Keroro)
Arabic الْمُلازِمْ كِيرُو Lieutenant Kīrū (al-mulāzim kīrū)
Amharic ሳጂን ኬሮሮ saǧinə keroro (Sergeant Keroro)
Malay Sarjan Keroro Sergent Keroro
French Sergent Keroro
German Sergeant Keroro
Spanish Sargento Keroro Sergeant Keroro
Galician Sarxento Keroro Sergeant Keroro
Catalan Sergent Keroro
Basque Keroro sarjentua Sergeant Keroro
Burmese တပ်ကြပ်ကြီးဖား tautkyautkyee hparr
Italian Sergente Keroro Sergeant Keroro
Portuguese Sargento Keroro Sergeant Keroro
Dutch Sergeant Keroro
Polish Sierżant Keroro Sergeant Keroro
Czech Seržant Keroro Sergeant Keroro
Turkish Çavuş Keroro Sergeant Keroro
Swedish Sergeant Keroro
Finnish Ylikonstaapeli Keroro Sergeant Keroro
Icelandic liðsforingi Keroro Officer Keroro
Greek Λοχίας Keroro Lochías Keroro (Sergeant Keroro)
Russian Сержант Кэроро Serzhant Keroro (Sergeant Keroro)
Mongolian Түрүүч Кэроро Türüüch Keroro (Sergeant Keroro)
Thai สิบโทเคโรโระ Corporal Keroro (S̄ib tho khe ro roa)
Khmer ពលបាលត្រីកង្កែប polbalotrei kangkeb (Sergeant Frog/Keroro)
Indonesian Sersan Keroro Sergeant Keroro
Vietnamese Trung sĩ Keroro Sergeant Keroro
Afrikaans Sersant Keroro Sergeant Keroro
Swahili Sajini Keroro Sergeant Keroro
Hausa Saje Keroro Sergeant Keroro
Persian گروهبان کیرورو Sergeant Kyrvr
Filipino Sarhento Keroro Sergeant Keroro
Serbian Наредник Кероро Narednik Keroro (Sergeant Keroro)


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  1. Keroro Gunso Volume 25 Encounter 218
  2. Keroro Gunso Volume 4 Encounter 41: Operation Birthday Blitz!! p. 98-99
  3. Keroro Gunso Episode 58–B
  4. Keroro Gunso Episode 154
  5. Keroro Gunso Volume 7 Encounter 56: The Fifth One Appears! The Legend of Dororo p. 51
  6. Keroro Gunso Episode 260–A
  7. Keroro Gunso Volume 2 Encounter 12: Battle Royale: Keroro vs. Giroro p. 33
  8. Keroro Gunso Volume 2 Encounter Extra: Black and White Special Bonus: Everything You Never Wanted To Know About Corporal Giroro
  9. Keroro Gunso Episode 73
  10. Keroro Gunso Episode 327–A
  11. Keroro Gunso Volume 8 Encounter 69
  12. Keroro Gunso Volume 12 Encounter 100
  13. Keroro Gunso Volume 16 Encounter 134
  14. Keroro Gunso Episode 240–B
  15. Keroro Gunso Episode 172
  16. Keroro Gunso Episode 225–B
  17. Keroro Gunso Episode 280–A
  18. Keroro Gunso Volume 10 Encounter 83
  19. Keroro Gunso Volume 11 Encounter 84
  20. Keroro Gunso Episode 102
  21. Keroro Gunso episode 30
  22. Keroro Gunso the Super Movie 3: Great Sky Adventure de arimasu!

See Also

External Links