Web Video: Sgt. Frog Abridged

Series logo, Season 3 onward

Pururu: "Keroro, you're fine. You're just an oversexed asshole."
Keroro: "NO- oh. Yeah, that's me. But isn't that why you like me?"
Episode 11

Sgt Frog Abridged is The Abridged Series of Sgt. Frog started by Mugiwara Yoshi and made by TheMidnightFrogs. The premise of the series is the same of the original, until it develops its own story at the end of Season 1. The writing also focuses more on snark, absurdity, and surrealism than the original's referential humor. Viewers have noted that SFA is considerably different from Sgt. Frog.

The series is known for being a well-made parody of a comedy, something that numerous people found to be a bad idea before they saw SFA, and something the authors attribute to taking the series in a different writing and story direction. Its fans include a mix of fellow abridgers, Sgt Frog fans, and people who otherwise don't care for abridged series or Sgt Frog. It has numerous articles maintained by Thorn on the team's website, including all of the episodes, side-projects and one-shots, and most of the cast and crew.

The first three episodes of the series were remade in the interim between Seasons 1 and 2. Series creator Yoshi stepped down as writer after Episode 16, giving creative control to Thorn. The series ended November 2012, until Thorn decided to bring it back for a third season, starting with Sgt Frog Abridged: Reset. He plans to conclude Season 3 and the series for real in 2015.

SFA had a Spin-Off/Sequel audio Q&A blog from 2012-2014 called Ask GiroDoro SFA. The series is confirmed to be in a Shared Universe with The Audio Logs Of Dr Squid. It is also a sister series to TheMidnightFrogs' Tamers Abridged and to Thorn and Travis's Jetters Abridged, though they remain mum on if any of them share a universe. Tropes related to TheMidnightFrogs themselves go on their page.

The series provides examples of:

  • Aborted Arc:
    • Giroro's crush on Natsumi was a recurring joke through Season 1, and its last appearance was as a focal point in the first segment of Episode 10. Giroro turned his affections toward Dororo almost immediately after in Season 2, though this was foreshadowed a few times. The sudden drop gets addressed in Episode 18: the emotional stress of courting Natsumi with no success made Giroro lose interest, and Dororo happened to be in the right place at the right time.
    Giroro: "You know what? Forget it. I like cock now."
    • Alisa and Fuyuki were made a couple in Episode 13 and, aside from a brief joke in Episode 16, was never referenced again. This is because the series was shortened drastically, and none of the remaining episodes included Alisa.
  • The Abridged Series: Not the first abridging of Sgt. Frog, but by far the most successful. It became one of the few abridged series to have a conclusive ending on November 2012, before Thorn reversed the decision and extended it for a third season.
  • Added Alliterative Appeal:
    • Todd's Toilets.
    • All of Tamama's invasion plans in Episode 9 are two-to-three-word phrases that start with a hard "k" sound (Kangaroo Catapult, Cockblocking Cantaloupe, Colostomy Coffee Pot).
  • Affably Evil:
    • Alisa and her father Black Nebula in Episode 13. Nebula releases the trapped platoon, who he was going to eat, if Fuyuki agreed to be Alisa's boyfriend, which he has no trouble accepting.
    • Garuru, who's so warm-hearted and supportive of his brother Giroro that it drives Giroro insane, and he believes everything Keroro does is genius. He's also out to defeat the Keroro Platoon and finish the invasion of Earth, regardless of who gets in his way, at one point shooting Giroro in the back.
  • Affectionate Parody: Episodes 17 and 18 parody dialogue-heavy drama in action stories, though in one scene it gets taken seriously.
  • All Just A Daydream: Episode 9.
  • All There in the Manual:
  • All There in the Script: Aki's husband stuck in the Hinatas' basement, who was later confirmed to be Todd Sirkowski, was originally written in the SFA2 script as "Haru", the Fan Nickname for the unseen Hinata patriarch in Sgt. Frog.
  • Alternate Continuity: The in-universe explanation for SFA1R, SFA2R and SFA3R is that they are how the timeline was going to be before Future Kululu began time-hopping. Out-of-universe, the writers just didn't like them.
  • American Accents: Pururu is given LillyLivers' natural Brooklyn accent.
  • Angrish: Tamama's incoherent babbling to Giroro in Episode 8.
  • Animate Inanimate Object: Mop, a talking mop originally born out of TheMidnightFrogs Podcast and infrequently used as a bit character in SFA.
  • Anti-Humor: Keroro's recurring "joke" mode, Serious Keroro.
    "I'm so serious, even the jokes I tell are serious! How many blacks does it take to screw in a lightbulb?! One! 'Cause stereotypes aren't cool!"
  • Arc Numbers: 4 and 9, which kept popping up in-series and in Thorn and Yoshi's personal lives to the point that they made the numbers running gags and later Chekhovs Gags.
  • Arc Welding/Continuity Creep: The series started with the intent of being as Negative Continuity as the original. Then Episode 10 arrived and, alongside a heaping helping of retcon, developed its own plots and subplots. By Season 2, a Myth Arc developed of many powerful people hating Keroro for his uselessness and trying to kill him.
  • Artifact Title: Defied with SFA: Reset. Reset was originally going to be the title of a second SFA series, but the title would have lost its meaning right after the first episode, so it was simply shortened to a special as a lead-in to SFA Season 3.
  • Bait and Switch: Early episodes set up some jokes as though they were going to be spouting memes. By Episode 7 they dropped any reference to memes entirely.
  • Beard of Evil: Future Kululu and his pencil mustache.
  • Beat: TheMidnightFrogs love a good awkward silence.
  • Big "NO!": Keroro nearly has one in Episode 11:
    Pururu: "Keroro, you're fine. You're just an oversexed asshole."
    Keroro: "NO- Oh. Yeah that's me."
  • Big "Shut Up!": Giroro to his brother Garuru while they're fighting:
    Giroro: "I could actually hit you if you'd just sit still!"
    Garuru: "You could if you'd finished military training! We can't all get F's for 'Fantastic'!"
    Giroro: "Shut uuuuuuuup!"
  • Bilingual Bonus:
    • Keroro (and occasionally other characters) speak random bouts of Spanish. While Funimation did this with Angol Mois just for laughs, TheMidnightFrogs did it because project founder Yoshi is Dominican. Fun with Subtitles often happens at the same time, especially in cases where the supposed Spanish is actually gibberish, or is a real Spanish statement being passed off as gibberish. Episode 1 also featured Spanglish interplay between Keroro and the caption.
      Keroro: "Soy un major yes."
      Caption: I am grande si.
    • Future Kululu's random placement of the numerals 4 and 9 become hints when the Japanese language is involved: 4 is pronounced the same way as Japan's word for death, and 9 is pronounced the same way as original series Kululu's signature laugh.
    • Keroro uses Morse code in Episode 12 to send a message to Giroro. It's assumed that he's tapping out the Serious joke he is saying at the same time; he's actually tapping out Dororo's catchphrase, "I'm lonely".
  • Black Comedy:
    "My conscience hung itself."
    • Fuyuki happily and proudly walks into a scene in Episode 15 with:
    "Guess what, Sarge? I no longer believe in god!"
    • Briefly with Brainwashed Serious Keroro in Episode 18:
    "So...aborted fetuses...what's up with that?!"
    • Original song "Stroke in the Sun" treats seizures like a new Dance Sensation.
  • Bloody Hilarious:
  • Brand X: Generic Japanese Bridge in Episode 4.
  • Bread, Eggs, Milk, Squick: Keroro at the start of Episode 7:
    "Ahhh. Nothin' like doin' nothin', eating fruit, and rifling through your friends' emails."
  • Break Them by Talking: Though the change is subtle, Fuyuki's "The Reason You Suck" Speech to Keroro causes him to start pulling out of his Jerk Ass state.
  • Brick Joke:
    • With the remake of Episode 1, Kululu's brief appearance at the beginning turns into one when the viewer reaches Episode 10, and his plot to kill Keroro is revealed.
    • In Episode 2, Fuyuki thanks Keroro after singing a song, though Keroro can't hear him. In the Post-Credits, Keroro suddenly says "No problem, Fuyuki!" and has no idea why he said it.
    • The Episode 8 Post-Credits includes a voice saying "Dang, man! Mop need him a cigarette!" The end of Episode 10 features a mop coming out of nowhere and saying "And I'm a talkin' mop!"
    • The Narrator leaves early-on in Episode 10 to get some dollar store cheese. Future Kululu's base turns to be a dollar store. Also, the credits feature Mop screaming "Cleaning up the cheese! CLEANING UP THE-"
    • One of Tamama's invasion plans in Episode 9 is putting cake into the Hinata house's fridge. Later, Kululu finds cake in Keroro's fridge.
    • Everyone goes on a picnic in Episode 10, with Dororo insisting on holding hands. Later, Giroro seems to freak out after reading Keroro's letter to them, with Dororo saying "See? this wouldn't have happened if you held my hand."
    • In Episode 6, Dororo temporarily loses his sight and wonders if it has something to do with his morning coffee. In The Stinger for Episode 12, HQ tells someone to "fix the coffee machine; I think it's making me blind".
    • Episode 13 has Keroro remarking the object delivered from HQ was not what he wanted for his birthday, first referenced in Episode 6. The brick comes back in Episode 16 when the device seemingly breaks, at which point Keroro shouts "Worst birthday ever!"
    • In Episode 15, Keroro lets slip that Garuru is on his way to Earth, but he's not going to make it for Christmas. When the Garuru Platoon finally arrives in Episode 17, he sends a message saying "Sorry I missed Christmas".
    • Two with Natsumi's power armor and its built-in message machine in Episodes 17 and 18:
      • The machine says that it has 300 new messages in SFA17. Natsumi listens to a few of the recordings, and Episode 18 opens with her listening to message 297.
      • Message 299 has Giroro angrily storm out of the room he's recording the messages in. After Natsumi activates the power armor and flies off, Giroro returns to finally end the recording. Cue message 300.
  • British Accents: Dororo has a hint of British in his voice.
  • Broken Tears:
    • Dororo is prone to it, due to his horrible life.
      Pururu: "So, um, did you ever get over that bed-wetting problem?"
      Dororo: "Kind of. Now I do it with my face."
    • Then in Episode 15:
      *Reading his poem* "Touch my toes, then I cry at night." *Beat* "Sorry, I was gonna finish it, but I started...crying..."
  • Buffy Speak:
    • In Episode 8, everyone describes the pink armbands on Dororo's arms as "pink, poofy things".
    • Keroro in Episode 9
      Keroro: "Come on guys! You can't make an omelet without doing whatever the fuck it takes to make an omelet!"
  • Calling Your Attacks: Koyuki and Dororo in the two-part series finale.
  • Canon Discontinuity/Retcon: The original first three episodes were remade in the interim between Seasons 1 and 2. Episodes 1 and 2 were remade to make them better and more in-line with the writing style and quality, and Episode 3 was remade to fix some plotholes that resulted from the first two remakes.
  • Captain Obvious:
    • Serious Keroro is usually this, tying in with his punchline-warping Anti-Humor.
      "What do you call cheese that isn't yours? Stolen!"
    • Mois in Episode 5:
      *Pointing to Asami* "YOU LOOK LIKE ME!!!"
  • Cast Full of Gay/Everyone Is Bi: The creators' official stance on the characters' sexualities is that they are bisexual unless explicitly stated otherwise. Character sexuality is rarely Played for Laughs in the usual sense, while sexuality has been closely examined in several episodes, so the series fits under either trope.
  • Cerebus Retcon: Fuyuki's monologue in Episode 18 is this for the entire series. Watching Keroro be a Jerk Ass to his friends may be funny, but the scene reveals just what negative effect this has on everyone around him.
  • Character Development:
    • Giroro and Dororo become closer friends at the end of Episode 7. By Episode 11 it's much more noticeable in how the two back each other up at different points in the episode, and in the Episode 14 Post-Credits Dororo asks Giroro to marry him in a very idiosyncratic way.
    • After having an episode-long daydream in Episode 9, Tamama decides that she is happy being the submissive one in her relationship with Keroro. This doesn't stop her from laying out everything that annoys her about Keroro right to his face in Episode 12, and she continues to think less of him through Season 3.
    • Keroro's selfishness and poor treatment of his friends causes Fuyuki to break down emotionally and lay out "The Reason You Suck" Speech. Though Keroro doesn't immediately act any different, he seems to respect Fuyuki more the following day. Keroro's development is more noticeable in the Spin-Off blog Ask GiroDoro SFA and subtly in SFA Season 3.
  • Character Filibuster: Keroro and Fuyuki each give one to each other in Episode 18, Keroro as to why he's the real victim, and Fuyuki as to why Keroro is a terrible friend.
  • Characterization Marches On:
    • Keroro's characterization in Episodes 1R and 2R was based closer on the original. As the first season progressed, a greater emphasis was placed on his Jerk Ass and sarcastic sides, leaving behind all of the personality traits and quirks of the original.
    • Kululu's personality mellowed out after the first season, becoming more apathetic than Jerkassy. This was the personality the team originally intended for him during the series' planning stages, but when Jpace92 became his VA they went the creepy jerk route. Then Future Kululu happened, and they steadily went back to making him apathetic.
  • Chekhov's Gag/Chekhov's Gunman:
    • The constant appearance of the numerals 4 and 9 ("What is this code?!"), his bizarre demeanor through the second half of Season 1, him suddenly disappearing from Tamama's office in Episode 9, and his ethereal cackling throughout Episode 10 all culminate in Future Kululu's reveal in the climax of Episode 10.
    • Tamama, upon Keroro introducing him, calls himself "a pretty princess" in Episode 2. Then in Episode 8, Giroro reads a joke from Jimmy Carr about vaginal pain, during which Tamama can be heard groaning "ow". Tamama also remarks about having "air boobs" in Episode 9, then later discovers a "hole" in the Post-Credits. The end of Episode 10 is Tamama revealing that "he" is actually a "she", with her attempting and failing to say so throughout the episode.
  • Christmas Special: Parodied with A Christmas Special (It's special, alright), where the platoon's latest invasion plan is a crappy Christmas parody album played over a Jim Nabors commercial.
  • Cliff Hanger:
    • Season 1 ends with Tamama revealing that he is really a girl and HQ leaving a message revealing that they're sending someone out to get rid of Keroro.
    • Episode 11 ends with Pururu contacting HQ, revealing that she is a double agent.
    • Episode 12 has HQ calling to send out a bioweapon to take out the platoon.
    • The Kiruru counter appears at the end of Episode 13 with the platoon trying to figure out what it's for.
    • Dororo proposes to Giroro in the Post-Credits of Episode 14. Giroro's answer isn't given, but Episode 15 opens by making it clear that he said "Yes".
  • Clip Show: A Beginner's Guide to Sgt Frog Abridged
  • Cloud Cuckoolander: Every character is "off" to some extent. Fuyuki, Tamama and Aki straddle the line between this and The Ditz, Dororo straddles the line between this and serious mental illness, and Joriri takes it Up to Eleven to incomprehensibility. Even the Straight Man/Only Sane Man characters of Giroro and Natsumi have their weird moments.
  • Comically Missing the Point:
    • Joriri in Episode 11.
    "I don't understand water wings. Every time I throw a bird into a lake, they drown."
    • Keroro in Episode 15. Justified, since he's delirious from his illness.
      "HQ’s sending his (Garuru's) platoon to Earth. But bad news, he’s not gonna make it to Christmas. You’re gonna be so shocked!"
  • The Comically Serious: Giroro and Garuru. Literally with Serious Keroro.
  • Continuity Nod: Jokes and quotes often reappear in later episodes, usually in an altered form. Proper Running Gags are listed further down the page.
    • Lil' Keroro describes something as "shooty Deus ex Machina" in Episode 7, which was previously used as "shitty Deus ex Machina" in Episode 4, the previous flashback episode.
    • In Episode 4, Dororo asks Koyuki if Earth ever stops having a full moon, which she flatly responds "no". In Episode 9, Dororo asks the platoon if any of them can actually read; Kululu flatly responds "no".
    • Dororo seems to briefly lose his sight in Episode 6. When it is discovered in Episode 11 that he has every disease ever, Pururu asks if he can even see. He responds, "Usually".
    • Giroro mentions (and shows) that flashbacks make him nauseous. Come Episode 11 he is around for both flashbacks, and he promptly reminds us of his little weakness. In SFA: Reset, as Keroro begins the How We Got Here flashback, Giroro proudly proclaims that he's "conquered it", "it" being the nausea.
    • Episode 10 is a Continuity Cavalcade Mind Screw, with several major and minor details culminating in the reveal of Future Kululu.
      • Keroro took Mois to a "dollar store" when she was a child; Future Kululu's base is a dollar store.
    • Pururu finds Tamama inexplicably tied to a tree in Episode 11. In Episode 12 the platoon ties Kululu to the ceiling; Pururu remarks to Keroro, "I think your platoon is addicted to rope..."
    • George Albert Nishizawa's first appearance is him acknowledging Todd's Toilets' hot air balloons from Episode 1 and the George Albert radio commercial in Episode 6.
    • Internal Homage: Keroro begins an invasion plan in Episode 3 with "We're gonna take a can of soda..." In Episode 13 while at a Halloween festival, he repeats that exact line to the others before the camera cuts away.
    • In Episode 2 Fuyuki laments that girls aren't attracted to him with "What happened to my game...?" In Episode 13 Alisa kidnaps him, causing him to triumphantly shout "I got my game back!"
    • Episode 14 has several nods to Episode 4, due in part to it being a flashback to the events leading up to 4.
    • In Episode 15, a delirious Keroro remarks to Fuyuki "I'm your uncle, and I heard what you said", a Call Back to Fuyuki lamenting about not having an uncle in Episode 5.
    • Also in Episode 15, Keroro tells Giroro that his brother is coming to Earth, but "bad news, he won't make it to Christmas." In Episode 17, Garuru sends a message to the platoon, "Sorry I missed Christmas."
    • In a Continuity Cavalcade moment in Episode 18, Keroro drops the sudden revelation that he was sold as a child. He is hinted heavily to be the little brother Dororo said he sold for cash in Episode 8. Apparently the cash was spent on Viper's bail in Episode 7.
    • Kululu sings a "HEGH" harmony at the United Nations in Episode 12. He briefly does the same thing in Episode 18 before singing a Pre-Ass Kicking version of the birthday song to Tororo.
    • The Todd's Toilets balloon from Episode 1 reappears in Episodes 17 and 18.
    • Portions of SFA: Reset take place in the Dollar Stores from Episode 10. During one of these segments, Mop slips into view in the background.
  • Contrived Coincidence: The culmination of Season 1 is this, by the writers' admission. Thorn only planned for the finale to have a few reveals to cap off the season, including giving a purpose to the constant appearances of 4 and 9, but when Future Kululu popped out of the brainstorming, a plot completely different from the original series was formed instead. The team went with it because it made a creepy amount of sense, though acknowledging that it didn't make complete sense.
  • Cool Old Guy:
    • Grandpa Viper in Episode 7, who gives out dollars for nothing and is a Cloud Cuckoolander.
    • Invoked with Paul, who can do anything regardless of how physically impossible it is and causes explosions just by moving his body.
  • Credits Gag: Every credits sequence includes a message at the very end after the ownership disclaimer, usually a follow-up to a joke, a thank you to cast members, or just something general from the creators to the viewers. Season 2 specifically includes a joke "Lesson #[x] of Season 2", and it lists Let's Player MrFailGame in the credits as a figure or object that either does not speak or does not even appear to begin with.
  • Crossdressing Voices:
    • Averted for most of the characters, though Tamama is a weird example. He starts out being an aversion in Season 1, unlike both the Japanese and Funimation versions of the original series, but he is revealed to be a girl in Episode 10, becoming a subverted example and a complete inversion of the original's crossdressing voice.
    • Young male character Private Taruru is voiced by female VA LillyLivers.
    • In-Universe, Giroro "attempts" this himself by pretending to be Sumomo in Episode 6.
  • Cross Over:
    • Fuyuki appeared briefly in the first two of TheMidnightFrogs' Pokemon one-shots
    • Birdy from SFA's sister series, Jetters Abridged, interviewed the platoon in Episode 9 and left a message about Jetters Abridged in the Post-Credits for Episode 13.
  • Dance Sensation: Original song "Stroke in the Sun" suggests making seizures into this.
  • Darker and Edgier:
    • Season 2 comically. Thorn and Yoshi were more willing, and often made it a point, to make darker jokes and situations. As a result, Momoka dies, Dororo opens Episode 14 having banged his head against the wall so hard he's splattered blood all over it, Keroro initiates mass suicides across the universe, and the season ends with the cast left on an Earth locked in time in a universe devoid of sentient life.
    • Spin-Off Ask GiroDoro SFA was more serious and willing to discuss personal, relationship, and traumatic issues among the characters, and its first season ends with Giroro and Dororo solemnly accepting that they don't know what will happen to them after the time jump.
    • In Season 3, antagonist Shurara is more closely shown to be abusive to his platoon, and Putata exits his episode via unceremonious gunshot to the head.
  • Deadpan Snarker: Everyone at some point. Rule of thumb: if ThornBrain voices a character, this is guaranteed to happen.
  • Debut Queue: The first five episodes introduce a handful of the main cast at a time: Keroro and the Hinatas in Episode 1, Tamama and Momoka in Episode 2, Giroro and Kululu in Episode 3, Dororo and Koyuki in Episode 4, and Mois in Episode 5.
  • Deliberately Cute Child: Both Mois and Koyuki have played up their cuteness to get the attention of their respective love interests, Keroro and Natsumi.
  • Demoted to Extra: Mois, due to her voice actor often being busy early in the series, and to the writers getting anything they could have really gotten out of the character in her first episode. She still has the occasional line, and the season finales feature her more prominently, but generally the writers don't have a use for her.
  • Department of Redundancy Department: Episode 5:
    Keroro: "Tamama, you're in a burger store. They sell burgers."
  • Discontinuity Nod:
    • Aki repeating her "period" intro from Episode 2R in the remake, only to freak out her kids who don't know why she brought it up.
    • Several of Future Kululu's callbacks became these after the original first three episodes were remade.
  • The Ditz:
    • Fuyuki, Tamama, Aki, and Mois, though each has had their moments of clarity.
    • Raiden in Season 2.
  • Drama Bomb Finale: The Season 2 finale, featuring the first legitimate threat the team has ever faced and a Cerebus Retcon "The Reason You Suck" Speech to Keroro from Fuyuki.
  • Drop-In Character: Saburo, with his greatly diminished presence from the original series and no voice, just occasionally shows up for no reason.
  • Dropped a Bridge on Him:
    • Momoka in Episode 13.
    • Keroro inadvertently does this to everyone in the universe, including everyone on Keron in Episode 16. Reset undoes this.
    • The Garuru Platoon, due to Dororo's Giant Ninja Fuck You Star having a delayed effect. Reset also undoes this.
    • Putata and Mekeke in Episode 20. Invoked for the former: Thorn found the original character, and how he and Travis where writing their version, so obnoxious that only an unceremonious death seemed appropriate.
  • Early Installment Weirdness: Inverted. Episodes 1R and 2R were generic and derivative Abridged Series videos in comparison to the rest of the series, which has a better developed style. They were remade between Seasons 1 and 2 to bring them in-line with this style.
  • Earn Your Happy Ending:
  • Eldritch Abomination: Keroro and Tamama's baby, Kemama, transforms into a giant Albatross, Eater of Worlds. Kemama was apparently conceived by Beetle Jesus, and Tamama refers to him as "my eldritch son".
  • Embarrassing Nickname: Of all the disparate things everyone has called Dororo, "Poodlejumper" has a backstory.
  • The End: The final screen of Episode 18. A question mark appears shortly after. Then a "Yes". Double Subverted when the series came back for a third season.
  • Epic Fail/Negated Moment of Awesome: Dororo spends two episodes meditating to gather power for his Giant Ninja Fuck You Star. When he finally uses it on Garuru's mothership, it bounces off with a pathetic "dink" and destroys a nearby building. Subverted, however: the mothership finally explodes later in the episode...after Garuru's platoon amicably leave Earth, effectively killing the main cast's new friends.
  • Establishing Character Moment:
    • Keroro: "That's Mister Sexy to you!"
    • Fuyuki: "Tear down this school!" *Proceeds to smack his body into the roof*
    • Natsumi: "Alright, let's get this over with. Who and what are you?"
    • Tamama: "I can't find my ass..."
    • Koyuki: Jumping through the gym window.
    • Dororo: Keroro struggling to remember his name. Or care that he's back.
    • Paul: "Karate Butler Paul at your service. Would you like a cup of tea? I can brew it with my bare hands. Or perhaps you would like a slice of cake? I can bake a cake just by looking at it. Mrrrr."
    • Garuru: Giroro calling him a "warm-hearted bastard".
    • Zoruru: "You're looking at me? What- You think we're dating or something?!"
    • Taruru: "Well, I like to think about birthdays..."
    • Tororo: "There are worse things to find on your dad's hard drive. You never told me you made Mint's Hints!"
    • Putata: "Yo! I'm..." *air horn* "...Putata! And I'm here to say 'go big or go paint a home'!"
  • Evil Counterpart:
    • Zoruru to Dororo: where Dororo is friendly and always feels alone regardless of if people are with him, Zoruru is a cold-blooded assassin who is always alone but feels like people can never leave him alone.
    • The rest of the Garuru Platoon are subversions. Garuru is out to invade Earth just like Keroro's initial mission, but he is so warm and friendly that, if Giroro were still in the Keronian military, Garuru would be the good counterpart by comparison. Taruru isn't much of a threat, and he's at least as clueless as Tamama. And Kululu's counterpart Tororo, despite possibly being dangerous, is really just unhinged over his father more than anything.
  • Evil Gloating/"The Reason You Suck" Speech/Opening Monologue/Inner Monologue: Kululu really likes to monologue.
  • Fantastic Racism: Episode 7 hints at/plays with the Viper clan being the subject of racism, particularly through the use of a police robot.
  • Flanderization: This series initially out-flanderized the anime, but the creators quickly made sure to develop their characters further and not to reduce them to single jokes.
  • Flashback: Episode 4 is a Flashback Cut, Episode 7 and Episode 14 are Whole Episode Flashbacks, and SFA: Reset is a mixture of both.
  • Fluffy the Terrible: Keroro's "Evil Digestive Monster" is named Frank.
  • Freudian Excuse:
    • Dororo blames his massive friendship and emotional issues on his parents.
    • Keroro also blames his parents for setting the stage for everything to go wrong in his life.
  • Follow the Leader: The series inspired at least two other (now defunct) Sgt. Frog abridged series, according to those series' creators: Bokegaeru Productions' Sgt Frog: The Other Abridged Series and AbridgeShion's Keroro Abridged.
  • Four Is Death: See Arc Number and Chekhov's Gag.
  • Friendly Sniper: Garuru, closer to his manga characterization than the more Cold Sniper characterization in the anime.
  • Funny Background Event:
    • Dororo's eyes sometimes do strange things. In Episode 6 they twitch uncontrollably the day after the first radio show, they can be seen following a bug crawling around Tamama's head in Episode 11 when adult Pururu is introduced, and they spin around inside his head in Episode 16 when Kilili is introduced.
    • Videos were uploaded showing dialogue hidden in the background of Episode 5, Episode 6, Episodes 17 and 18, and Episode 20.
  • Gay Aesop: Episode 11 concludes with "It's okay to like both men and women."
  • Godwin's Law: In Episode 21, Fuyuki uploads a video of Dokuku to YouTube and promptly gets called Hitler by a commenter. He isn't bothered by it, though:
    Fuyuki: "At last, I have power."
  • Grandparental Obliviousness: Grandpa Viper in Episode 7 is unaware that the boys have stolen his money or that Zeroro is his grandson.
  • Gratuitous Spanish: Yoshi has a habit of breaking into random Spanish when voicing Keroro. Many other characters have also slipped into Spanish at points.
  • Halloween Episode: Episode 13.
  • Hand Wave: Omiyo the ghost girl was exorcised from the house by Kululu before she could make an appearance in Episode 2, due to Thorn and Yoshi not having anything they could do with her and deciding they'd rather leave her out of the series. Come Episode 21, she's a central character and unavoidable in the source video, so Thorn had to bring her back while addressing the exorcism.
    Kululu: "Hey! I worked really hard to get rid of you!"
    Omiyo: "You said my parents were fat and then walked out of the house."
    Kululu: "I'm not paid by the hour."
  • Happily Married: As of Episode 15, Giroro and Dororo. More detail is given of their relationship in their character Q&A blog.
  • Harmless Villain:
    • The Keroro Platoon, thanks to Keroro himself, have no chance of taking over Earth.
    • Viper poses a threat to the platoon at first in Episode 4, but simply being flabbergasted by Dororo causes him to give up. His later appearances are as a comically unsupportive dad to Dororo.
    • Future Kululu simply leaves after three impossible things happen right in front of him.
  • Here We Go Again: SFA: Reset undid the events of Episodes 16-18 that prevented the series from realistically continuing, including the killing of everyone in the universe. With it undone, the series could bring in new people who hate Keroro and want him dead. Cue Shurara's introduction.
  • Heroic BSOD: Keroro suffers one after being blamed for the world's communications being hacked in Episode 17.
  • He Who Must Not Be Heard: Saburo, who is variously played as a Cute Mute or as someone who is interrupted before he can ever speak. He finally speaks in Episode 18, though for the first and last time.
  • Hilariously Abusive Childhood:
    • Dororo/Zeroro, Up to Eleven from the original into lethal territory with Keroro's and Giroro's games such as "Zeroro Dies".
    • Keroro was sold as a child, and not for very much money. He had to buy back himself, and he ends up living in his clubhouse in the junkyard.
    • Pururu's mother is implied to be a violent drunk.
      "When my mommy drinks juice, nobody's happy."
    • Implied that it could happen with Keroro and Tamama's baby, Kemama, when Keroro quickly gets fed up with taking care of him. Kemama leaves before it can happen.
      Keroro: "So I'm gonna jettison him into space. He can be Superman, somewhere else!"
  • How We Got Here: SFA: Reset begins after everything has happened. Since Mois wasn't there and is confused by the platoon talking about it, Keroro has to flashback to explain everything.
  • Hypocritical Humor:
    • Kululu telling the platoon that they're "fucked up".
    • Keroro calling Dororo an ass.
  • Ice-Cream Koan: Every single one of Joriri's lines.
  • In-Joke: TheMidnightFrogs have a list on their site of their in-jokes, most of which have some involvement or have made an appearance in SFA:
    • Late Let's Player MrFailGame is listed in the credits of every episode in Season 2 as someone or something that does not talk or does not even appear. This comes from an appearance he made in a friend's film as a guy with a bucket, where his friend made a stink about him appearing on-time to film, but the only line Fail had was "Okay".
    • Kilili, the name bestowed on the baby Kiruru in Episode 16, comes from the a series of Sgt Frog fanfictions that Yoshi and his friends loved to read and mock. Kilili was an OC in the stories with many of the Mary Sue Classic characteristics.
    • Kemama, the offspring of Keroro and Tamama who was originally formed during a four-hour Skype call from around the February 2010 launch of SFA. Kemama later entered the series proper in Episode 21, though he shared none of the original's ridiculous characteristics, save for rapid and sudden growth.
  • Innocuously Important Episode: Due to the original series having minimal plot and few Story Arcs, and SFA's first season being much the same, some SFA episodes have events that only make them important in hindsight:
    • Episode 7 is a Whole Episode Flashback to Keroro, Giroro and Dororo (then-Zeroro) as kids going on a treasure hunt. The latter two's friendship gets some development, leading to them eventually getting together as a couple and then married, their relationship being one of the linchpins of Season 2 and their character Q&A blog documenting the lead-up to SFA: Reset and Season 3.
    • The primary plot of Episode 13, a Halloween Episode where Fuyuki gets a girlfriend, is rarely referenced again and has little bearing on the main Story Arc. Just before the credits, a capsule with a timer crashes into the platoon's base, starting the arc that culminates in HQ and the Garuru Platoon attempting to kill them in the final three episodes of the season. The Kiruru inside the capsule, with help from Keroro, also helps kill everyone in the universe, setting up the necessity of SFA: Reset as a prequel to Season 3.
  • Ironic Juxtaposition: Future Kululu salutes Keroro during his monologue about killing Keroro for not putting forward the effort to invade Earth.
  • Jerk Ass:
    • Keroro to ridiculous levels, and he only gets more so as the series progresses - abusing his friends, cheating on his partner, infinite selfishness. Character Development between Seasons 2 and 3 mitigates it slightly: he's still a jerk with a huge ego, but he's more aware of it and knows how and when to apologize.
    • Kululu in every iteration.
  • Killed Off for Real: Momoka at the end of Episode 13. See McLeaned for the out-of-universe reason.
  • Knight of Cerebus: Subverted with the Garuru Platoon. Garuru's deep, dramatic, threatening voice; Zoruru's nightmarish attitude; and the platoon being the series' first genuine threat take the show into darker territories than before. However, Garuru clearly does not take himself seriously, Zoruru is too mentally messed up to be effectively scary all the time, and Taruru and Tororo are essentially useless.
  • Large Ham: Keroro, Kululu, Garuru, and the occasional bit character, all to varying degrees.
  • Larynx Dissonance: Sumomo, the pop singer with a raspy, guttural speaking voice.
  • The Last Straw: Momoka had several voice actors (and people contacted about voicing her that never made it in) before her first appearance in Episode 2R, at the time voiced by LillyLivers as a backup. The constant trouble the team had getting her a voice early-on is the reason they didn't look for another VA after Narusasu moved to Japan following Momoka's death in Episode 13, effectively being The Last Straw that broke her character's existence.
  • Late to the Punchline: Inverted in Episode 10. When Keroro reveals that he actually got a job, Dororo arriving late to the scene is a punchline.
  • Leaning on the Fourth Wall: The fourth wall has been broken a few times in the series, but the writers prefer not to nowadays, in stark contrast to the original series, which wouldn't even exist if it had a fourth wall. In the cases where they played it straight, they almost always regret it shortly afterward.
  • Leeroy Jenkins: Tamama charges at Mois in Episode 5 shouting "G.I. JOOOOOOE!!!". She immediately runs down a chasm.
  • Logic Bomb: Garuru, under the mistaken impression that Keroro is a military genius, fights a few mental battles with himself before ultimately snapping after this:
    "Still, you'll never beat my clever mind. Unless you're more clever-" *brain electrocutes*
  • Luke, I Am Your Father:
    • Viper is Dororo's father. Or it's the blue frog in Dororo's meditation DVD. It's probably both.
    • Keroro is Dororo's little brother that was sold for cash as a child, thus making him Viper's son as well. Naturally, Keroro is too dumb to put the pieces together. Dororo has to tell him upfront in Ask GiroDoro SFA.
  • Major Injury Underreaction: After Keroro slams his fist against a solid stone wall, his only reaction is calmly stating "Huh... I just broke my hand."
  • Malicious Misnaming:
    • Characters often call Dororo something that starts with the letter "D" (Dorito), is a "Dor" pun (Door Knocker, Doorbell), or is completely unlike his name (Hangnail, Laryngitis).
    • Lampshaded in Episode 14, when Keroro realizes that he actually got Dororo's name right (immediately after getting it wrong, of course).
  • Man, I Feel Like a Woman : Subversion. Tamama was probably always a girl, but she only realizes this upon suddenly discovering her vagina.
  • Memetic Badass: Invoked with Paul, whose ability to do literally anything regardless of its physical possibility is a joke at the Chuck Norris meme.
  • Mildly Military: The platoon in the first season, due to Keroro being a moron. By Season 2 they don't even try to pretend that they're still in the military. They get forced back into it for Season 3, but still make little effort to take over Earth or act militant.
  • Mind Screw:
  • Mood Dissonance: Fuyuki cheerfully saying "Guess what, Sarge? I no longer believe in God!" in Episode 15.
  • Mood Whiplash: Keroro's monologue in Episode 18 takes the series into dramatic territory for the first time. Fuyuki's response sends the series hurtling into it. Then Garuru brings it back to comedic very abruptly.
  • Mundane Made Awesome: The guys in Episode 5 who proudly state, "Eyyyy, I can talk with my teeth closed!" and "I can talk with my mouth open!"
  • Myth Arc: The overarching plot of the series, and the reason the platoon are on Earth in the first place, is that Keroro is useless, and people want to kill him because of it.
  • Mythology Gag:
    • To TheStrawhatNO!:
      • In Episode 17, Taruru refers to Dororo as "Dumple".
      • In Episode 21, a disheveled Keroro makes the same honking sound as Marco from Skies of Arcadia, and Robobo is revealed with a line adapted from Pibot in the Bomberman Hero Let's Play.
    • To Jetters Abridged:
      • Birdy made vocal appearances in Episode 9 and Episode 13.
      • In Episode 16, the platoon at one point run out of a room while shouting "HIGE!"
      • Mujoe shouts the scene transitions in the second half of Episode 21.
    • To Tamers Abridged:
      • In Episode 21, Fuyuki makes the same laugh as Kazu.
  • N-Word Privileges: Averted. Keroro outright says "Nig-" in Episode 8.
  • Never My Fault: The gist of Keroro's monologue in Episode 18. It's what finally breaks it to Fuyuki that Keroro is not the friend he thought Keroro was.
  • Nightmare Retardant: Invoked in Episode 10. While the climax is made to be disturbing aurally and visually, the sudden background appearance of the video for REM's "Shiny Happy People" is a signal to the viewer that things are going to get stupid.
  • No Bisexuals:
    • The series averts this overall, having the characters defaulted to Bi unless explicitly stated otherwise.
    • Deconstructed in Episode 11, which was directly inspired by the No Bisexuals article. Keroro always acted as a Straight Gay while having a very obvious attraction to women, yet when Tamama reveals that she is really a girl, Keroro exhibits a form of "straight panic" and fails to acknowledge that he may simply be Bi. The ending of the episode parodies the LGBT mantra "It's okay to be gay" by saying "it's okay to like both men and women". Giroro, the off-screen Wholesome Crossdresser, had this figured out from the start and gets irritated at Keroro's blatant ignorance.
  • No Mouth:
    • Dororo, by way of his mask.
    • Zoruru has half of a mask, but his voice seems to come through a speaker.
  • No Sell:
    • Dororo's Giant-Ninja-Fuck-You-Star, which he spent the previous episode meditating to power up, bounces right off of the Garuru Platoon's mothership. Subverted later, when it turns out it was just a delayed reaction.
    • The star fails again in Episode 20 against Mekeke, who takes the hit with no visible damage and laughs maniacally in response. Dororo only hit a marionette, not the real Mekeke.
  • Non Sequitur:
    • Fuyuki drops "I don't remember getting dressed today" in the Episode 1. He also randomly shouts "Speed lines are cool!" in Episode 5.
    • Tamama's introductory line to Fuyuki is "I'm a pretty princess".
    • Fuyuki pleads the fifth at the start of Episode 11. Keroro plays along by saying "Go fish".
  • Non Sequitur Thud: Episode 3, when the TV explodes in Keroro's face:
    Keroro: Yeah...jalopoly my waffle-flabergize, Trix Rabbit.
  • Noodle Incident:
    • Keroro mentions two in Episode 1:
    "Who'da thought a toilet balloon would save my ass again? That was the day I knew I wanted to become a sergeant."
    • Followed almost immediately by:
    Keroro: "Didn't I tell you? I'm an alien invader."
    Fuyuki: "I wanna be your friend too!"
    Keroro: "Okay! Wait, I'm not falling for that again!"
    • "The Poodlejumper story", which you can hear parts of in Episode 6, details how Dororo got the nickname "Poodlejumper". A video was uploaded so you can hear the entire story unaltered.
    • Zeroro's mental flashback to Christmas with his parents in Episode 7.
      Viper: "We had to spend the money on my bail."
      Zeroro: "What did you do, Dad?!"
      Viper: "*Sigh* Look. It's not my fault. I just happened to think they were very sensible looking shoes. But this other guy..."
    • Koyuki in Episode 10:
      "Well with a name like Luigi, could you blame me?"
    • Keroro in Episode 10:
      "So I got fired. Funny story! But anyway..."
    • Tamama in Episode 12:
      "Hey guys, I brought you all cookies, but then I didn't. It's kind of a long story. So...here's a tray!"
  • Not That There's Anything Wrong with That: Garuru after completely killing the mood in Episode 18.
  • Official Couple:
  • Offscreen Moment of Awesome: "Keroro Love Fighters" in Episode 15. Offscreen Moment of Chaos, if you prefer.
  • Oh, Cisco!: The Stingers are usually this.
  • Out-of-Character Moment: Kululu consciously drops his creepy demeanor to bring Tamama back to reality in Episode 9. He only did this because Tamama was being particularly out-of-character himself. Justified in that the whole thing was Tamama imagining if he were dominant in his relationship; he very much is not, and it got out of hand for everyone.
  • Overly Preprepared Gag:
    • Kululu works his way up the Nishizawa Corporation, nearly making it the leading world economic power in the process. Soon he finds himself addressing the leaders of the world, whereupon he...sings a "HEGH" harmony. He's back with the platoon the next day.
    • Saburo is played as mute, or at least he never gets the chance to speak. Let's Player MrFailGame is listed in every Season 2 episode as a person or object that never speaks. When Saburo finally gets a line in Episode 18, it's voiced (for real) by MrFailGame.
  • Pet the Dog: Giroro, both as a child and as an adult, offers Dororo/Lil' Zeroro drinks in Episode 7, an important point in their Character Development.
  • Plot-Relevant Age-Up: Every flashback involves Lil' Zeroro saying something that causes Lil' Keroro and Lil' Giroro to instantly hit puberty. Keroro lampshades this the first time it happens in Episode 4, but every time after he just runs with it.
  • Pre Ass Kicking One Liner:
    • Tamama: "You've just gone 'n' fucked the beehive!!!"
    • Kululu: "I made you Tororo, and I'm gonna CTRL+ALT+Fuck you up!"
    • Kululu makes a second one out of the birthday song.
  • Pre-Mortem One-Liner:
    • Zoruru to Koyuki: "I pull things out of my arm."
    • Garuru to Giroro: "You fought well, little brother, but it's time I went after the real soldier."
  • Precision F-Strike:
    • A variation in Episode 7. While the characters cuss profusely as adults, their young selves avoid cursing throughout the episode until Zeroro meets Solid Snake and screams out the F Strike in terror. Keroro and Giroro immediately hit puberty and begin cussing themselves.
    • Fuyuki drops one while tearfully berating Keroro for his selfishness and poor treatment of his friends.
  • Pun:
    • Todd's Toilets: "Don't buy that George Albert crap!"
    • Fuyuki: "You should take this alien badge, 'cause your looks are out of this world!"
    • Lil' Keroro: "You better not hit the brake! Or you're going to... break, haha!... our friendship!"
    • Narrator: "You may be fat, but you're ph-at where I come from."
    • Lil' Keroro, after Lil' Zeroro falls in the toilet: "You look a little... *snicker*... pissed off!"
    • Keroro: "What did the river say to the ocean? Nothing! It just waved! AAAAAH-HAHA!"
    • Tamama: "Well, time to storyboard!" *Time passes* "Aaaaand I'm bored!"
    • Keroro: *Dressed as a girl* "Who's the boob now, Giroro?"
    • Keroro: "I'm a pipe-cleaner."
    • Serious Keroro jokes tend to subvert this, as he's usually mangling a joke with a punchline.
    • In Episode 13 several characters make Halloween puns, with Keroro saying the pun directly above.
  • Put on a Bus: Momoka for most of Season 1 due to voice actor problems. Returned in the season finale after a new VA was found, until the writers decided to get rid of her again For the Lulz.
  • Quietly Performing Sister Show: Jetters Abridged and Tamers Abridged are this to SFA.
  • Rapid-Fire Comedy
  • Reality Warper: Future Kululu.
  • "The Reason You Suck" Speech: Fuyuki gives one to Keroro in the series finale. Though the change is subtle, Keroro does start to pull out of his Jerk Ass state as a result.
  • Record Needle Scratch: Frequently used to coincide with an awkward statement or before an awkward silence.
  • Reference Overdosed:
    • The series overall is a subversion, in stark contrast to the original series. They make references, but they're few and far between.
    • Solid Snake is a straight example. Practically every one of his lines is a quote from Metal Gear Solid 1 and 2.
  • The Remake: The current Episodes 1, 2 and 3 are remakes of old episodes which are now titled 1R, 2R and 3R. The old versions are unlisted on YouTube, and the team like to pretend they didn't happen.
  • Revisiting the Roots: Downplayed example. Thorn felt that Episodes 8 and 9 were too self-aware, stilted and lacking in ideas. He and Yoshi then wrote Episode 10 with the intention of returning to the more relaxed and ridiculous writing of Episodes 4-7.
  • Revolving Door Casting: Momoka in Season 1, who went through five different voice actors before she was killed off the following season after finally getting a stable VA.
  • Running Gag:
    • The numerals 4 and 9 appear frequently in random places and dialogue. Revealed to be a message from Future Kululu that he is going to kill Keroro. The numbers continue appearing after Future Kululu returns to his time. They are also apparently the price Keroro was sold for as a child: $49.99.
    • Keroro speaking Spanish/embodying various Hispanic stereotypes.
    • Solid Snake appears randomly, referencing the Metal Gear series under the guise of it being advice.
    • Raiden started appearing in Season 2, though he instead acted like a metrosexual's Facebook/Twitter feed.
    • Characters droning "nurrrrrrrrrrr" in the background, specifically when they're just standing around with their mouths hanging open.
    • Characters "getting back at each other" in ways that don't make sense.
      Koyuki: "You'll never get away with this!"
      Viper: "Loser says what-what? Ha! Viper 2, you 0!"
    • During flashback episodes, Zeroro inexplicably causes Keroro and Giroro to instantly hit puberty just by saying something.
    • Keroro's "AGH!" laugh
    • Let's Player MrFailGame is credited in every episode of Season 2 as a person or object that either doesn't speak or doesn't even appear.
    • Dororo's catchphrase of sorts, "I'm lonely", started appearing in places outside of Dororo himself in Season 2. It even appears once in Morse code.
  • Running Gagged:
    • Natsumi's Too Kinky to Torture tendencies were quietly dropped in Season 2.
    • Giroro's blatant ignorance of very plain things, which the writers acknowledged as lazy writing, was dropped.
  • Satellite Character:
    • Mois, whose only personality trait now is her devotion to Keroro. See also Demoted to Extra.
    • The Lesbos,note  who only talk about Natsumi, even after "breaking up" with her.
  • Satire: Tamama's Church of Beetle Christ is this to religions as a whole.
  • Schoolgirl Lesbians: Though the original series features at least three distinct girls with a crush on Natsumi, SFA has every girl in her school obsessed with her, including the teachers.
  • Screw This, I'm Outta Here!: In Episode 4, Viper is so flabbergasted by Dororo's random spark of motivation that he just gives up. By exploding.
  • Self-Deprecation: Dororo does this occasionally, fitting considering he has the most (and most blatant) issues.
    Dororo: "Keroro, you're looking a lot like me right now. I want you to think about that very carefully."
  • Sequel: The Ask GiroDoro SFA audio blog. Initially conceived as a Spin-Off before Thorn decided to end SFA, after which the blog continued the story. It also became a Prequel to Season 3 when SFA was brought back, via the Sgt Frog Abridged: Reset special.
  • Sequel Hook:
    • HQ's message at the very end of Episode 10.
    • Several messages at the end of episodes in Season 2 foreshadow the Kiruru device and the Garuru Platoon.
    • Subverted in the series finale credits. It really is the end. Except, as of SFA: Reset, it isn't.
    • In the Post-Credits of Season 3 episodes, Shurara sends the next wave of his corps after the platoon, with the next wave being the focus of the following episode.
  • Set Right What Once Went Wrong: The Reset special is centered around fixing the events in Episodes 16 and 18 that doomed the universe (and prevented the series from continuing).
  • Shared Universe: With The Audio Logs Of Dr Squid. Dr Squid's Galactic Observation Dominion is referenced in Episode 18, and Keroro makes a cameo in Dr. Squid Episode 10.
  • Shout-Out:
  • Silence Is Golden: Several outside shots in Episodes 17 and 18 have no sound unless it's caused by the cast, so as to show that the world has indeed stopped dead in its tracks.
  • Sincerity Mode: In Episode 21, Keroro and Natsumi briefly put aside their sarcasm and vitriol after she teaches him to take care of his newborn son.
    Keroro: "I've decided to name him after my and Tamama's eternal love... Kemama."
    Natsumi: "I think she'd like that. Never thought I'd say this, but hey, hope things go well for you guys."
    Keroro: "Maybe being a dad'll be alright."
  • Singing Voice Dissonance: Sumomo is voiced by 1KidsEntertainment with a deep rasp when speaking, but she has a clean, feminine singing voice provided by LillyLivers.
  • Something Only They Would Say: Inverted in Episode 18. Keroro saying "Please" is a sign that he's finally changing out of his usual Jerk Ass self.
  • Song Parody:
    • "A Pekoponian Day in the Life" - A mostly non-humor parody of The Beatles' "A Day in the Life". John Lennon's parts are sung by ThornBrain from the perspective of a human as the Keronian army invades, while Paul McCartney's section is sung by Yoshi from the perspective of Keroro on an average day.
    • "Pretty Girl's All Mine" - Parody of Chris Isaak's "Pretty Girls Don't Cry". Sung and performed by Thorn from the perspective of Giroro about his crush on Natsumi.
    • "The Lonely Dance" - Parody of Men Without Hats' "Safety Dance". Sung by ThornBrain as Dororo with RevyMoonshine making vocal cameos as Koyuki. Dororo tries to pretend that he doesn't need his former friends, only for him to have catastrophic emotional breakdowns in each chorus.
    • A Christmas Special (It's Special, Alright) features seven small Christmas parodies:
      • "White Blanket" - Parody of "White Christmas", sung by Dororo about wanting a security blanket due to being lonely during the Christmas season.
      • "Giroro's in Natsumi's Room" - Parody of "Santa Claus is Coming to Town", sung completely out-of-time by Keroro and with incoherent lyrics.
      • "Walking in a Mall at 12 O'clock" - Parody of "Walking in a Winter Wonderland", sung by Fuyuki about dangerous Black Friday shopping.
      • "I'll be Home for Christmas" - Sung by Dororo about how nobody ever notices him, not even in his dreams.
      • "Baby, It's Cold Outside" - Sung by Natsumi and Giroro, with Natsumi trying to get Giroro to leave her room.
      • "Durdeedeedur" - Also a parody of "Santa Claus is Coming to Town", sung by both Yoshi's and Thorn's respective Tamama's, with even more incomprehensible lyrics than Keroro's version.
      • "Carol of the Kululu" - Parody of "Carol of the Bells", sung by Keroro, Tamama, Dororo, and Giroro about Kululu and how he acts. It is the only song that does not utilize a karaoke track.
    • "The Valentine's Parody" - Parody of Billy Joel's "The Longest Time". Sung by Yoshi as Keroro with Thorn singing cheap backup as Giroro and Dororo. Keroro sings a Valentine's song for Tamama, alternating between being a romantic, a cheap date, and a general Jerk Ass.
    • "Stroke in the Sun" is a stylistic parody of The Beach Boys.
    • The team recorded a parody of The Beatles' "Yellow Submarine" in December 2009 called "Tamama's Titties". It was based on an in-joke involving Tamama with breasts, and though Thorn always had the file, he didn't release it to the public until 2014. It and the in-joke it was based on, however, did influence the direction the team would take with Keroro and Tamama's relationship.
  • So Proud of You: Garuru to his little brother Giroro, but for mundane things like when he taught Giroro how to read. It drives Giroro nuts.
    Natsumi: "You know, he seems like a pretty nice guy."
    Giroro: "But he's so supportive!!!"
  • Sound Defect:
    • In Episode 8 - instead of the usual "woosh" that would be used in such a situation - Kululu slides into frame with a rubbery stretching sound.
    • Tamama makes the stretching sound when turning to face Taruru in Episode 17.
  • Spell My Name with an "S": The series goes with the "Kululu" spelling and pronunciation of said character's name, they usually emphasize the second syllable in Giroro's name, and they spell the "Sgt" in the series' title without a period.
  • Standard Snippet: In Episode 18, Giroro rides an aerial strike into the base. Cue Ride of the Valkyries. And him "singing" along to it.
  • Stealth Pun: When Kemama transforms into a giant bird at the end of Episode 21, the background music is "Velocity Bird" by Peter Murphy.
  • The Stinger: Every episode features two brief clips after the credits, officially referred to as Post-Credits. They usually follow up a joke or situation earlier in the episode or fill up a plothole. They also served as Sequel Hooks from Season 2 onward.
  • Stunned Silence:
    • The platoon at the end of Episode 8, after they view their new "animation".
    • The platoon at the end of Episode 12, after Kululu trolls the world.
  • Stylistic Self-Parody: In Episode 12 Dororo recovers from a very long sneeze with a laugh, only to immediately realize that he doesn't have a nose.
  • Stylistic Suck:
    • The entire 2010 Christmas special, from the bad singing on most characters' parts to the mostly-unedited background video malfunctioning and looping halfway through.
    • The "cartoon" in Episode 8, a static image of a badly drawn Giroro in a sweater.
    • Giroro's song to Natsumi in Episode 18. Or anytime he sings, really.
  • Suddenly Voiced:
    • Parodied in Episode 7 with Lil' Giroro. The character did not have a line in his first appearance, so Lil' Zeroro is shocked when he finally speaks.
    • Saburo, otherwise a Cute Mute, gets a brief spoken line in Episode 18.
  • Suicide as Comedy: In Episode 16, Keroro suggests number 4 on his spider leg-game-list of backup escape plans. Number 4 leads to suicide by gunshot to the head. The point where it gets taken to an extreme is when Keroro then tells Kilili to "spread [his] teachings across the galaxy", which leads to mass ritual suicides on every planet in the system.
  • Suspiciously Apropos Music: Giroro wrote a song for Natsumi which ended up being played over her fight scene in Episode 18. It inexplicably details exactly what is happening on-screen, despite being written and recorded months before while he still had a crush on her.
  • Take That:
    • Keroro invokes this trope in Episode 1 after Fuyuki takes the Kero Ball, and in Episode 5 after "getting back" at Giroro in a nonsensical way.
    • Episode 4 contains one directed at zealous fans of Pokémon Generation One, calling Seel the most original Pokémon ever.
    • In Episode 5, Asami makes a crack about overwrought break-up poetry.
    • In Episode 6, Giroro suggests making cologne as an invasion plan, ripping on Axe Body Spray in the process:
      Keroro: Hmm... What would it smell like?
      Giroro: I dunno. Rat semen, but say it'll get you girls and people will still buy it.
      Keroro: Point.
    • Axe is lampooned again in Episode 8, when Keroro randomly reads a section of article in his animation manual that states "Axe spray does not work".
    • In Episode 8, Tamama asks from where Kululu stole the anime backgrounds. When Kululu simply answers, "It was Haruhi", the platoon is so disgusted that they lose all motivation to work on the project.
    • Keroro gets a job selling coupons in Episode 10: "Sad thing is, I still make more than Walmart employees."
  • Tangled Family Tree: The Viper family. It seems straightforward at first: Viper, his father, his wife, their kids. But then in Episode 19 we meet his "Mom-Son" and "Dad-Train"...
  • They Do: Dororo and Giroro in the Post-Credits of Episode 15. Kululu acts as minister. Hilarity Ensues.
  • Toilet Humor:
    • Literally with Todd's Toilets and the kids hiding in the train bathroom in Episode 7.
    • George Albert Nishizawa speaks to his stockholders in urinal puns during Episode 12.
  • Too Kinky to Torture: Natsumi is frequently hinted to have an interest in forced bondage in Season 1. This is quietly dropped in Season 2.
  • Two Lines, No Waiting: Episode 12 alternates between Kululu working at the Nishizawa Corporation and everyone else being terrorized by his cursed DVD at the Hinata house.
  • Unsympathetic Comedy Protagonist: Keroro, Jerk Ass supreme.
  • Unusual Euphemism: Tamama's food metaphors and similes in Episode 9:
    Tamama: "Like a bean burrito, you're goin' south."
  • Unusually Uninteresting Sight:
    • In Episode 1, no one reacts to a hot air balloon crashing outside their house, or to the very same balloon crashing outside the school. Subverted when Aki shows up, revealing that this isn't the first time this has happened:
      Aki: Jesus christ, Todd. Again?!
    • When Mois falls off the roof in Episode 5, Keroro merely responds with "Well that's odd."
    • In Episode 14, Koyuki seems unfazed by seeing Dororo's blood splattered across her wall.
  • Vocal Evolution:
    • Yoshi's Keroro voice started out as him trying to emulate Todd Haberkorn. Circa Episode 5 his Keroro voice no longer has Haberkorn influence.
    • Jpace92's Kululu gradually became rougher and more sinister after his first appearance. Even his casual lines sound disdainful now.
  • "Well Done, Son!" Guy: Tororo reveals in episode 17 that Kululu is this to him.
  • Wide Eyes and Shrunken Irises: A favorite visual gag of Thorn's, having grown up reading comic strips like Garfield.
  • WHAM Episode: Episode 10, with Mind Screw, some Sequel Hooks, and the first establishment of the series' own plot separate from the original Sgt. Frog.
  • WHAM Line: In Episode 15: "Oh my god, Giroro. Wait until you find out your brother is coming to take over and kill us all!"
  • Worst Whatever Ever: Keroro's response to (supposedly) breaking the counter in Episode 16:

"You can't do a haunting without a Putaunting."

Alternative Title(s):

Sgt Frog Abridged