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The poster for the first movie.note 
Universe is wide to fly
Flying home with happiness
To explore, let us go explore
We aim the highest in life!
Cloud is wafting gently
A dream that came out
A little bit outline
Go flying, go flying!
Fly over the night and dawn
La, la, la, la
The wind is blowing gently
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Dream wings and meteors shot the sky across
Through time and space
And return to the place of dreams!
Official translation of "Happily Flying Forward" 《开心往前飞》

A relatively well-known TV show in China, Happy Heroes (开心宝贝) tells the story of a group of child superheroes who work to save the world Once an Episode from monsters and invading aliens and such. It was created in 2010 by one Weiming Huang/Leo Huang, the same person who created the especially popular Chinese cartoon Pleasant Goat and Big Big Wolf. It's an ongoing work with countless episodes.

Most of the adventures take place on Planet Xing, in a time where interplanetary travel is common. Planet Xing itself happens to be especially technologically advanced, and most of the population consists of robots that act exactly like humans with the full range of emotions and such (although there are humans too, as well as some aliens and anthropomorphic cows and other animals).

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Planet Gray's expansion agency sent out two of its fighters, General Big Guai/Big M. and Corporal Little Guai/Little M., to conquer Planet Xing. With them, the two had five Jixie stones that, in addition to being able to give an inanimate object life, contain immense power, more than enough to conquer a planet. However, due to their ineptitude, Big and Little M. lose all but one of the stones, and crash-land themselves on the planet.

On Planet Xing, a genius engineer, Doctor Zhai/Doctor H., finds four broken vehicles while searching through a rubbish dump for things to fix. Unbeknownst to him, these vehicles were hit by and somehow combined with the four Jixie stones. When Doctor fixes them and then a broken power line falls on them, the four vehicles are revived into four children with superpowers. With Doctor as their surrogate father, Hero Kai/Happy S., Hero Hua/Smart S., Hero Tian/Sweet S., and Hero Chu/Careless S. defeat their enemies and protect the planet time and time again. Eventually, they are joined by a fifth, revived from the one stone that Big and Little M. had managed to keep- Hero Xiao/Careful S., and even later, Jialuo/Kalo, a former admiral of a now-destroyed planet, Planet Adeli. Despite the number of times that they fight, however, the Heroes never do discover the identities of their enemies.

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The Happy Heroes website can be found here. The Other Wiki has an article on it. There is also the Chinese version of The Other Wiki, Baike, which has an in-depth article on this show here. All three of these websites are in Chinese, however. For updates on upcoming events go to the official Weibo blog.


"Troper S. transform!":

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  • 1 Million B.C.: Planet Guling from Season 6 has several features making it much like a prehistoric setting (it has inhabitants resembling cavemen who live in caves, and there are also lots of dinosaurs living alongside them).
  • 15 Minutes of Fame: In episode 9, Smart S. breaks the record for planet Xing Xing's fastest runner and becomes a celebrity who gains a lot of fans from it.
  • A Dog Named "Dog": Haha Huo owns a pet owl named Mau, whose name is a shortened form of "maotouying", the Chinese word for "owl".
  • Absentee Actor: Not every episode features all five heroes; for example, Season 2 episode 37 features appearances from Careless S. and Smart S., but none of the others.
  • Academy of Evil: The monsters have a school where they learn how to be proper monsters. There always seems to be a lack of funding though...
  • AcCENT upon the Wrong SylLABle: In Miao Mi's English dub, Little M. has a problem with placing the accent on the wrong parts of words when he speaks ("His best known work is the back of sun-FLOW-ers!").
  • Accessory-Wearing Cartoon Animal: The cows often wear a neckerchief or a wig.
  • Accidental Hero: In Season 2 episode 42, Big M. and Little M. are mistaken by Happy S. to have saved the president of planet Xing Xing from other criminals. They were actually trying to capture the president themselves and only fended off the other criminals because they weren't amused with them acting on the idea first.
  • Agitated Item Stomping: In Season 4 episode 35, Lightbulb Jr. gets fed up with Smart S. and stomps on a poster of him.
  • Air-Vent Passageway: In episode 8, Big M. and Little M. crawl through an air vent to reach the heroes and make them sick with their cold.
  • Alien Blood: Shapeshifter's blood is green, while Kalo's blood is blue.
  • Alien Invasion: In Season 2 episode 2, Careful S., who is being manipulated by Big and Little M. to work for them, successfully deactivates the shield protecting planet Xing Xing. Cue spaceships from planet Gray making an all-out attack on the planet.
  • Aliens and Monsters: Aliens aren't anything special in this universe, but a cry of "monster" will automatically prompt a Hero to attack. It's never really been cleared up what the exact definition of a monster is, however...
  • Aliens Speaking Chinese: The inhabitants of planet Xing Xing all speak Chinese perfectly fine.
  • All Your Powers Combined: In episode 40, Smart S., Sweet S., and Careless S. combine their Smart Magnet, Sweet Protection Bubbles, and Careless Missile respectively with each other to attack the time-space monster.
  • Alliterative Name: The main antagonist of Season 8 is named Haha Huo, which repeats the letter "H".
  • Alliterative Title: Happy Heroes repeats the letter "H".
  • Amnesia Episode: Careful S. loses his memory after a collision with a spaceship from planet Gray in the first episode of Season 2. Big and Little M. manage to get the amnesiac Careful S. to work for them.
  • Amnesiac Villain Joins the Heroes:
    • Inverted in the first couple of episodes of Season 2, where an amnesiac Careful S. is compelled to work for the villains Big and Little M.
    • Played straight in Season 2 episode 50, where Big M. sustains a collision, forgets he's a villain, and helps the heroes to defeat the shark that he himself sent out beforehand.
  • An Ice Person:
    • Season 2 episode 11 features an ice monster that can freeze objects by breathing ice on them.
    • The penguin monster in Season 2 episode 40 has the same ability.
  • Animal Jingoism: The ancient enmity between the Miaolings (cats) and the Woofians (dogs). It was later revealed to be because of something silly from when they still lived on the same planet.
  • Animate Inanimate Object:
    • In episode 35, the gang meets an anthropomorphic piece of wood who grants wishes.
    • In Season 2 episode 20, Doctor H. finds an anthropomorphic bottle genie who also grants wishes. He's so similar in appearance to the aforementioned wish-granting wood that Big M., who initially found the bottle, even comments about the similarities between the two.
  • Animesque: Characters often make facial expressions that wouldn't look out of place in an anime (such as a Sweat Drop or Cross-Popping Veins appearing on their head).
  • Arc Number: 4451 in the tenth season, shown many times mostly on electronic screens to only Careful S. It was confirmed that the series of messages were from Kalo, warning of the undercover Big M. and Little M.’s plan to bring in an ultimate weapon that could devastate the welfare of people on Planet Xing.
  • Arson, Murder, and Jaywalking: In Season 2 episode 16, Big M. lies that he wants to quit working at the school. Someone hears him and tells him he hasn't paid his rent and utility bills, another appears afterward saying he also hasn't paid his property management fees, elevator and broadband fees, or cleaning fees, and then a third one appears and mentions that he hasn't paid for two onions he purchased earlier.
  • Art Shift: A more detailed art style goes into effect starting from Season 10.
  • Art Evolution: The art gets slightly more detailed overtime. By Season 10, there's an outright Art Shift to a more detailed art style.
  • Ash Face: Any time a character is singed by fire, electricity, or a similar source, the worst they get is generally a lot of ashes covering their body, including their face.
  • Attack of the 50-Foot Whatever: In episode 31, Big M. and Little M. put on dream glasses that the heroes threw away. The scenario Doctor H. placed in the glasses has Big M. and Little M. grow to a massive size, which they use to destroy the city.
  • Author Avatar: Leo Huang gets a cameo in the first movie as a chef and the second movie as a scriptwriter superhero. He also sometimes appears in the main series, as a sketch artist for example.
  • Baby Morph Episode: In Season 3 episode 48, Little M. accidentally turns Big M. into a baby using one of Doctor H.'s inventions. Careless S. takes in the babyfied Big M. and cares for him for most of the episode.
  • Babysitting Episode: In episode 48, Big M. is hired to babysit the heroes when Doctor H. goes to an important meeting.
  • Back From the Dead: One character comes back to life in one season after having been killed in a past season.
  • Bait-and-Switch: This show loves to pull bait-and-switch-type jokes. One of the earliest instances is at the beginning of episode 6; the heroes ask Doctor M. to take them outside to watch shooting stars in the sky. He lets them watch the shooting stars, and even comments that they look beautiful, before it's revealed that it's just a documentary on shooting stars he found online.
  • Balloonacy: In Season 2 episode 45, Happy S. and Big M. give Dagger Sharpie so many balloons that he floats up into the air.
  • Banana Peel: Smart S. trips over a banana peel in episode 7 of Season 2, hurting him to the point that he can't perform his role as the prince in the upcoming school play. This gives Big M. the idea to make a machine that dispenses banana peels to make everyone slip and sabotage the play.
  • Bandage Mummy: In episode 40, after the other heroes accidentally hurt her, Sweet S. is shown covered almost entirely in bandages.
  • Banging Pots and Pans: At the beginning of Season 2 episode 8, Doctor H. bangs a ladle against a pot in an attempt to wake up the heroes.
  • Bar Slide: In Season 9 episode 32, Careless S. goes to a saloon in the Wild West and sees one of the cow patrons successfully catching a mug that is slid to him this way. Careless S. orders a glass of milk and tries to catch the cup as it slides... only to fail and end up ordering more glasses of milk, which he also fails to catch.
  • Baseball Episode: Similar. Season 2 episodes 17 and 18 form a two-part episode where the heroes play against a team of monsters in a game of basketball.
  • Battle Boomerang: The two wings on Happy S.'s helmet can come off to form a deadly accurate boomerang.
  • Battle in the Center of the Mind: Season 2 episode 38 has Doctor H. and the heroes go inside Careless S.'s mind to remove two CPUs he implanted in him that are making him smart enough to stay annoyingly one step ahead of everything. The CPUs happen to be represented by palette swapped Careless S.'s who wind up fighting the heroes.
  • Be Careful What You Wish For: In Season 2 episode 20, Doctor H. uses the bottle genie to make a wish that he's married to Miss Peach. He gets the wish, but with the trade-off that the heroes are now bullies and/or criminals due to Doctor H. ignoring them. He then clarifies that he wants both to be married to Miss Peach and to have the heroes be good. This also works out fine, except that Doctor H. now has an incurable disease and could pass away from it at any second. He gets back to the genie just in time to mention that he wants to live through the experience as well. For his final wish, Doctor H. and Miss Peach become 100-year-old senior citizens, making Miss Peach less beautiful - at which point Doctor H. gives up entirely and begs for everything to go back to normal.
  • Beach Episode: Episode 24 has the heroes go to a beach to investigate a Sea Monster which is said to live there.
  • Bears Are Bad News: In episode 10, a bear attacks Big M. and makes off with his bread. It comes back at the end of the episode, this time going after his fish.
  • Beneath the Mask: Careful S. comes off as cold but is really quite caring, shown several times throughout the series. He tends to hide this side from even his friends, however.
    • Once, for example, he took in and cared for an injured cat even though he is allergic to cat hair.
    • He once pretended to be Doctor H.'s deceased father to comfort him.
    • He also once bribed a stranger with a lollipop to help Smart S. regain his self-confidence.
      Kalo: He doesn't talk much, but he's still willing to be friends with everybody.
  • Berserk Button: Don't insult Miss Peach in front of Doctor H. Don't make fun of Sweet S., especially her cooking. Don't suggest in any way to Smart S. that Careful S. is better than him. Don't threaten or hurt Happy S.'s or Oversensitive S.'s friends. Never insult Kalo's planet.
  • Big Ball of Violence: In Season 2 episode 11, when some townsfolk get mad at Happy S. for causing trouble by magnifying their stuff, they attack him. The attack forms a big ball of dust with the heads, arms, etc. of the townsfolk sticking out.
  • Big Eater: Big and Little M. rarely get to eat anything, so when they do find food, they usually gulp it down pretty quickly.
  • Big Guy, Little Guy: And their names are even Big M. and Little M. to match their size contrast, no less.
  • The Big Race: Season 2 episode 52 is about the heroes participating in a car race.
  • Bindle Stick: The title card of episode 20, "Running Away from Home", depicts a bindle stick.
  • Binocular Shot: In Season 2 episode 51, we get a shot of Happy S. and the new teacher through binoculars as Big M. is looking at them.
  • Bittersweet Ending: The end of the "Legend of a Hero" arc in Season 7. Sure, they drove out the invaders, but at what cost? Kalo's life, for he was the one who sacrificed himself to save the planet. Needless to say, the heroes are still in tears despite the enemy being driven away.
  • Bloodless Carnage: There are certain episodes where Big M. accidentally gets himself stabbed with a knife or similar object. This being a children's show and all, there's no visible bleeding where he gets stabbed.
  • Blush Sticker: Miss Peach has permanent blush stickers.
  • Breaking the Fourth Wall:
    • In one episode, Professor Limen repeatedly tells the audience "don't try this at home". To the others, it just looks like him talking to a camera with a screen set up behind him. He also does this in some future episodes.
    • Smart S. also tells the audience once in Season 8: "Hitting people on the head hurts a lot! Don't do this at home!" These are probably a result of that one time two kids in China tried replicating something they saw in Pleasant Goat and Big Big Wolf, and ended up seriously injuring themselves.
  • Breath Weapon: The ice monster in Season 2 episode 11 and Penguin Monster in episode 40 of the same season both have ice breath.
  • By the Lights of Their Eyes: In episode 8, Big M. and Little M. are trapped in a big pipe by a robotic guard dog. The dog nails some planks of wood onto the open end of the pipe to keep them from getting out; when the inside of the pipe gets dark from this, Big M. and Little M.'s eyes are visible, but nothing else.
  • By the Power of Grayskull!: "_____ S., transform! _____ Car Knight!
  • Calling Your Attacks: The heroes say the names of their attacks when they use them.
  • The Can Kicked Him: In Season 2 episode 9, the garbage truck monster tries to attack the heroes by throwing a dirty toilet at them. They catch the toilet just in time and even give it a quick cleaning.
  • Cannot Tell a Lie: Inverted and invoked by Big and Little M. in Season 2 episode 10. The two use a flying saucer that zaps people into being unable to tell the truth; the affected people gain ten pounds for every truth they do tell.
  • Can't Take Anything with You: Inverted; after they return to the future, anything the Heroes leave behind vanishes.
  • Cartoon Bomb: One such bomb appears in Season 4 episode 32. Little M. is carrying several of them, and one of them drops next to a cannon; Little M. lights the bomb instead of the cannon, causing it to blow up on he and Big M.
  • Cartoon Juggling: Big M. is briefly shown juggling balls in the "shower" fashion of cartoon juggling in the title card of Season 3 episode 33.
  • Catch-Phrase: A whole bunch.
    • Big M.: "Darn it, we failed again!" after every time their plan fails... which is literally every episode.
      • Lamp-shaded by Little M. several times throughout.
      • One episode even focused specifically on that one catchphrase.
      • Ironically, few characters know that that is his catchphrase, since they don't know that he's working to conquer the planet.
    • Doctor H.: "Miss Peach, let me save you!!"
    • Happy S.: "Happy S. is here!"
    • Sweet S.: "Who wants to try my cooking?"
    • Smart S.'s referring to himself as "the main character", "the lead", "the star", or "super cool". He also tends to say "According to my analysis..."
    • Careless S.: "I forgot."
    • Oversensitive S.: "Caution lets your ship float for a thousand years."
    • Sad S.: "I'm really sad..."
    • Sick S.: "How disgusting."
  • Cat Up a Tree: In episode 2 of Season 12, Careless S. and Sweet S. help to save a cat which is falling from a tree it climbed.
  • Cats Are Mean: Keke occasionally does some borderline cruel things to Lele.
  • Caught in a Snare: In Season 2 episode 23, Big M. is caught in a "rope caught on leg" type snare set up by Little M.
  • Chain of People: Careful S. pulls this off by himself once to avoid falling into lava.
  • Chameleon Camouflage: The chameleon-like beast in Season 2 episode 43, befitting of the species he resembles, can camouflage himself.
  • Character in the Logo: Happy S. is in the logo.
  • Cheaters Never Prosper: Subverted. In episode 44, Doctor H. tries to take muscle-enhancing drugs to help him win the fitness competition. The other heroes try to convince him against it, to no avail; however, when he makes it to the competition, Doctor H. ultimately decides not to use the drugs.
  • Chekhov's Gun: The time bomb Careless S. misplaces in Season 2 episode 37 initially appears only for a quick joke that doesn't contribute much to the episode's plot. Later, Smart S. uses it to defeat the shapeshifting monster by getting it to transform into a time bomb.
  • Chekhov's Gunman: Season 3, episode 12, we see Caesar standing next to Adeli's global leader in a flashback. He's not even given a name, just mentioned to be manipulative. 243 episodes later, he's revealed as the Big Bad of the main arc of Season 7, and was responsible for Kalo's death.
  • Cherry Blossoms: In Season 10 episode 5, a monster drops his gun. Careless S. immediately notices the gun, and the resulting scene plays out like he's literally fallen in love with it, complete with cherry blossoms floating in the background as he's admiring it.
  • Child Prodigy: As shown in Season 9, Doctor H. was able to build working inventions even as a child.
  • Chiptune: A commercial for the show has the theme song in this genre.
  • Circus Episode: Season 3 episode 33 is about Big M. controlling a magician from a circus. Careless S. mysteriously disappears while watching the mind-controlled magician's act, and Smart S. tries to find him.
  • Cliffhanger: At the end of every season since Season 4.
    • Season 5's introduced the three superheroes of a faraway, mysterious planet.
    • Season 6's had a brief scene about the ambassadors and Keke of Planet Miaomei.
    • Season 7 ended with the planet-president falling strangely ill.
    • In season 8, Kalo's silhouette is found imprinted on the wall, after a television with his colors and complexion saved Sweet S..
    • The one ending Season 9 has yet to be resolved, where young Doctor H. appears to hear Happy S.'s voice coming from offscreen, even though the Heroes have already permanently returned to the future.
    • Season 10 concluded with Happy S' Car Knight getting poisoned with a monster solution, the car knight's eyes briefly turning red.
    • Season 11, which also has yet to be resolved, had two: the two villains reveal their part in the destruction of a planet, and a mysterious person rescues the two villains.
  • Clip Show:
    • There's a season called Funny Highlights which is clips from earlier episodes.
    • Season 2 episode 26 has the heroes mention their greatest accomplishments during an interview. The accomplishments are shown as clips from previous episodes.
  • Coconut Meets Cranium:
    • The title card of episode 38 shows Doctor H. being hit on the head by a coconut.
    • In another episode, Big and Little M. had drunken coconut milk from one coconut shell each, and had tossed them out the window. Poor Sad S. and Sick S. were knocked out when their heads were hit, with Oversensitive S. left wondering what happened and immediately on alert for a hidden assassin. At the end, Big and Little M. were also hit in the head with coconut shells.
  • Coincidental Accidental Disguise: Doctor H. was on his way to rescue Sweet S. when he ran into some clotheslines. By the time he gets to her, he's wearing all black, with a black top hat and his face hidden. Sweet S. spends a couple days dreaming about her mysterious savior, and never learns his identity.
  • Cold Turkeys Are Everywhere: In episode 46, Big M. and Little M. are hungry but don't have any food to eat. Little M. suggests that if they don't think about food, their hunger will go away, and the two try to find something to watch on TV to get their minds off the matter. Every show they see on the TV is related to food in some way.
  • Color-Coded Characters:
    • Happy S. - red
    • Sweet S. - pink
    • Smart S. - green
    • Careless S. - blue
    • Careful S. - black/purple
  • Combination Attack: Various ones. For example, in episode 40, Smart S., Sweet S., and Careless S. combine their Smart Magnet, Sweet Protection Bubbles, and Careless Bomb respectively with each other to attack the time-space monster.
  • Combining Mecha: Happy S.+ Sweet S. and Smart S.+ Careless S., once. At the end of the 1st movie with Happy S.'s car knight.
  • Comically Missing the Point:
    • In episode 3, the microwave monster defeats Happy S. while he's in his mecha. Happy S. and Sweet S. then mention how dangerous the monster really is, to which Smart S. replies "I don't believe it! ...look at this, he totally messed up my hair!"
    • In episode 13, Big M. is watching where the heroes are through a little robot fly camera. He notices the magic beans they've found and says that he thinks the heroes may have found something new. Little M.'s response is "Yeah, I've never seen so much ice cream before!", referring to a bowl of ice cream located right next to the beans.
  • Company Cross References: Arguable semi-example. Pleasant Goat and Big Big Wolf is referenced in a few episodes (e.g. in one episode, Happy S. manages to launch a monster into an environment where Pleasant Goat's Wolf Castle is nearby). Pleasant Goat and Happy Heroes are made by different companies, but both companies are subsidiaries of Alpha Group Co., Ltd., so it might count.
  • Confused Question Mark: Occasionally, characters might have a question mark pop up next to them when they are puzzled about something.
  • Conspicuous CG: There are quite a few objects or sequences that are animated in CGI as opposed to the usual 2D animation.
  • Continuity Nod: In Season 2 episode 20, when Big M. summons the bottle genie, he comments that he may be similar to the wishing wood, referring to the events of Season 1 episode 35 where the heroes find a piece of wood that grants wishes.
  • Counting Sheep: Careless S. does this in episode 19 in an attempt to get some sleep. Unfortunately, he counts out loud, costing Smart S. his sleep.
  • Covered in Kisses: In episode 9, Smart S. gets bombarded by fans when he's initially told he's broken a record. Some of the fans kiss him on the head, leaving visible lip marks.
  • Cowboy Episode: Season 9 episodes 32 and 33 involve Careless S. as a cowboy in the Wild West.
  • Cranial Eruption: Occasionally, if a character gets hit in the head, they'll develop a bump where they got hit.
  • Criminal Doppelgänger: Season 2 episode 34 features a wanted criminal who looks an awful lot like Doctor H., to the point that Doctor H. himself is mistaken for him.
  • Cross Player: In Season 2 episode 9, the male Big M. is shown playing a video game with a female player character.
  • Cross-Popping Veins: Characters sometimes make facial expressions with cross-popping veins on them.
  • Crush Blush: Doctor H. often blushes whenever he sees Miss Peach.
  • Cute Is Evil: Terror (when she's not transformed) is probably one of the most prominent examples. She almost failed graduation because Big M. didn't think she was intimidating enough - or at all. Some of the other untransformed monsters also count as this.
  • Cuteness Proximity: In one episode, the cuter monsters get away with all sorts of mean and nasty things by their cuteness, pinning their crimes on the one person immune to their cuteness - Careful S.
  • Cute Machines: The heroes pilot giant mechs which look very cute. They resemble giant Waddling Heads.
  • Cyberspace: In episode 16, Doctor H. and the heroes go inside the former's internet router and traverse a digital world to deliver a birthday card Doctor H. made for Miss Peach.
  • Dancing Theme: The theme song includes a short clip of characters dancing to the song.
  • Deadly Disc: In Season 2 episode 39, the sewage truck monster attacks by throwing sewer lids like disks.
  • Defeat Means Friendship: Careful S. fought and defeated Kalo three times (or two and a half, depending on how you consider the last one) and at the end, Kalo wants to stay and fight alongside Careful S. In this case, it somewhat overlapped with Fire-Forged Friends.
  • The Dentist Episode: In episode 42 of Season 3, Doctor H. goes to the dentist to deal with a cavity in one of his teeth.
  • Disappeared Dad: When Doctor H. was a little kid, his father got kidnapped by aliens.
  • Disguised in Drag:
    • Happy S. does this once.
    • In Season 9, Big M. does this to fool the heroes more than once. Played for Laughs in his case, since he does this probably more often than strictly necessary (the earliest example is in Season 1 - in episode 18, part of Big M.'s plan to mess with Happy S., who has had his abilities to fly and locate places messed up, is to dress himself up as a woman and pretend Little M. is "her" son, and ask Happy S. for directions to the zoo). He makes a very ugly girl.
    • In Season 3 episode 6, the Superstar School holds a parent-teacher meeting. Little M., being unable to ask his mother to come, tries to pretend to be his own mother, constantly changing clothes in order to make it look like both he and his mother are there.
  • Disney Death: Many, many times, considering it is a kids' show, after all. Careful S. often invokes this as part of his cold humour, sometimes with no explanation whatsoever.
  • Disproportionate Retribution: Season 2 episode 22 has Sweet S. whopping the living heck out of Big and Little M. for trying to... steal Doctor H.'s dinner. Big M. even asks if such a cruel punishment is necessary for their actions.
  • Distant Reaction Shot: At the end of one episode, Big M. does a Skyward Scream that "I WANNA GO HOME!!!" The camera pans out to a shot of planet Xing Xing as he shouts this.
  • Distracted by the Sexy: In episode 2 of Season 2, Careful S. distracts a couple of guards by throwing magazines their way. The magazines' covers depict beautiful women which distract the guards.
  • Does Not Know His Own Strength: Happy S. doesn't realize just how strong he is sometimes. One episode in particular focused on this - he had to be able to hold some tofu without it crumbling in order for him to be allowed to get a dinosaur egg. He decided to start easy, but found that he couldn't even hold a boulder without it cracking...
  • Don't Try This at Home: There's an episode of Season 8 where Smart S. warns viewers that "Hitting people on the head hurts a lot! Don't do this at home!"
  • The Door Slams You: There's at least one episode where Headmaster Tele is accidentally slammed by a door that was opened by one of the heroes.
  • Double Take: In the very first episode, Doctor H. thinks he's finally gotten away from the junkyard's guard dog, but the dog reappears right in his car seconds later. Doctor H. looks to his right where the dog is sitting, doesn't react and keeps on driving like normal, and then realizes what he just saw and panics.
  • Downer Beginning: Season 2 episode 30 begins with the Superstar School being destroyed by a storm, thus throwing thousands of children out of their education and, naturally, leaving Headmaster Tele devastated.
  • Dramatic Spotlight: In Season 2 episode 24, Big M. starts to cry under a spotlight that he's done for when he finds out his book of ultimate weapons has disappeared.
  • Drill Tank: Smart S.'s Car Knight in vehicle form is a drill tank.
  • Driven to Suicide: In episode 15, Big M. fakes wanting to shoot himself over "his" lost cat, in an attempt to get the stray cat from Smart S.
  • Drool Deluge: In Season 3 episode 5, Big M. and Little M. produce waterfalls of drool from their mouths as they stare at a dinner Headmaster Tele is having with his princess guest.
  • Dying Moment of Awesome: Complete with giant explosion obliterating the entire opposing army.
  • Early-Bird Cameo: The intro used throughout Season 1 contains a brief clip showing Careful S., who does not make his proper debut in the show until the final episode of said season.
  • Early Installment Character-Design Difference: In the first two episodes, Big M. had spiky shoulder pads on his suit and the Planet Gray insignias on his headband and belt, as well as the one on Little M.'s belt, lacked their antennae.
  • Easy Amnesia: At least two episodes have characters develop amnesia immediately after a collision with some object.
  • Elemental Powers:
  • The End: Episodes usually end with the Chinese symbol "完" ("finished") being displayed on-screen. The "完" card in this series is stylized with a heart placed on top of the symbol, which is changed to a gear in later seasons.
  • Energy Beings: All Adelians, supposedly, though they usually have solid forms.
  • Episode Title Card: All episodes have a title card depicting the characters doing various things, similar to the title cards from early on in Pleasant Goat and Big Big Wolf.
  • Equippable Ally: Careful S. often uses Kalo as a Morph Weapon.
  • Even the Rats Won't Touch It: In episode 17, a rat dies after eating food prepared by Sweet S.
  • Everything's Better with Cows: Anthropomorphic cows are often seen on Planet Xing Xing.
  • Everything's Better with Dinosaurs: Dinosaurs are among planet Xing Xing's wildlife.
  • Everything's Better with Penguins: Season 2 episode 40 introduces a penguin from planet Gray's monster academy named P-p-p-p-penguin M-m-monster (that stutter is literally part of the name, by the way).
  • Evil Is Hammy: The Lookus dub gives Big M. a hammy, exaggerated voice.
  • Evil Knockoff: The duplicating machine monster in episode 27 creates an evil clone of Happy S. The two versions of the character can be told apart by their appearance - the evil Happy S. has a slightly darker color scheme - but the difference isn't enough to immediately convince the others that it's not the real Happy S.
  • Evil Laugh: A lot of the various antagonists have some kind of evil laugh they use often.
  • Exact Words: In episode 44, Doctor H. tries to win a fitness competition because the reward for winning is going out for dinner with the local television station celebrity - yet another chance for him to impress Miss Peach. At the end of the episode, he does indeed get to go out for dinner... with Mr. Lightbulb, who points out that he never did explicitly say that the "local television station celebrity" he mentioned was Miss Peach.
  • Exit, Pursued by a Bear: At the end of episode 10, the bear which was going after Big M.'s bread comes back, this time going after some fish he has stolen from the heroes.
  • Expressive Accessory: Big M. has the insignia of planet Gray on his belt and headband. The insignias on both have faces that often change to fit whatever expression Big M. is making.
  • Expy: Little Cutie, the cleaning robot Doctor H. invents in episode 30, cleans trash by compacting it into trash cubes, which brings WALL•E to mind.
  • Extendable Arms: In episode 47, a robot woman extends her arm to grab her kid's toy spaceship.
  • Eye Pop: In Season 2 episode 41, Big M.'s eyes pop when he realizes Happy S. walked past his trap.
  • The Faceless: Big and Little M.'s commander is only ever seen from the back, or otherwise has his face completely obscured from view whenever he is on-screen.
  • Failed a Spot Check: In Season 2 episode 37, Smart S. chases after the shapeshifting monster, who has shapeshifted into a street light. Careless S. doesn't get why Smart S. is chasing a street light, despite the fact that a moving street light isn't usual at all.
  • Faking Amnesia: Big M. fakes amnesia in Season 2 episode 50 as part of his evil plan. Joke's on him, though, as he later sustains a collision and actually does get amnesia.
  • Fire-Breathing Diner: In Season 2 episode 4, Big M. eats a chili lollipop and blows a flame out of his mouth from it.
  • Fire-Forged Friends: Careful S. and Kalo, who saved each other's lives to get out of that lava cave trap.
  • First Law of Resurrection: One character inexplicably returns in one season after having been killed in a past season.
  • Five-Man Band:
    • The Leader: Happy S. is the team's leader.
    • The Lancer: Smart S. is more vain compared to the likes of Happy S., making him a fair-enough foil to said hero.
    • The Smart Guy: Careless S., though very forgetful, is smart enough to work as an effective weapons authority for the other heroes.
    • The Big Guy: Careful S., while not actually bigger than the other heroes, still qualifies for being very skilled in physical combat.
    • The Chick: Sweet S. is The Heart of the group, and also the only female out of the heroes.
  • Flight: Happy S., Kalo, Zelia, and Dragon all have the ability to fly.
  • Floating Clocks: In the Season 9 intro, the heroes travel through a time vortex filled with floating clocks.
  • "Flowers for Algernon" Syndrome: Season 2 episode 38 sees Careless S. get two more CPUs installed in him to curb his forgetfulness. The new CPUs work a little too well, causing Careless S. to become one step ahead of everything to the point of annoying the other heroes. Doctor H. solves this by going into Careless S.'s mind to get rid of the CPUs.
  • Flowers of Romance: In Season 2 episode 39, Doctor H. imagines he is giving flowers to Miss Peach, both for her efforts as a superhero and because he's in love with her.
  • Flying Seafood Special: The shark in Season 2 episode 50 floats around in the air.
  • Forgetful Jones: Careless S. tends to forget stuff, even at the cost of easily winning a battle - it's not uncommon for him to forget the ammo to a weapon, or load the wrong kind of ammo into it.
  • Four-Fingered Hands: All of the characters have four-fingered hands.
  • French Maid Outfit: Big M. wears a French maid outfit throughout episode 48 as he is babysitting the heroes.
  • Funny Animal: The inhabitants of planets Miao and Woof, both introduced in Season 7, are anthropomorphic cats and dogs respectively, but still show animal-like traits from both (the Woofians sit like dogs and like to eat bones while the Miaolings like to eat fish, for example).
  • Funny Background Event: In episode 49, there is a scene where if you look in the background, the silhouettes of a certain boy and alien flying on a bicycle can be seen passing in front of the moon.
  • Frying Pan of Doom: In Season 3 episode 12, Arcas's mother hits him with a frying pan after she sees the damage he's done.
  • Genie in a Bottle: Referenced in Season 2 episode 20 with a genie who is literally a bottle.
  • Giant Woman: Well, more like "Giant Girl" than anything, but you get the idea. In episode 50, Big M. manages to control Sweet S. with his Black Jewel, causing her to grow in size and wreak havoc upon the city.
  • Good Angel, Bad Angel: In Season 3 episode 18, Smart S. tries to withdraw money from an ATM machine to buy a super-alloy screw. A shoulder angel and devil resembling him appear, with the devil trying to persuade him to withdraw the money and the angel trying to persuade him not to since he can only withdraw money several times and this is his only remaining chance to do so. Smart S. withdraws the money anyway.
  • Goofy Print Underwear: Big M. is shown on a few occasions to be wearing underwear with a heart pattern on it.
  • Group Picture Ending: Season 3 episode 29 ends with Doctor H. taking a group picture of Careful S.'s duplicates.
  • Hair-Trigger Avalanche: In Season 3 episode 12, Big M. hits Little M. while they are on a snowy mountain. The impact is somehow enough to make the explosive barrels they've set up blow up, causing an avalanche.
  • Handy Remote Control: In Season 2 episode 3, the teacher of the Superstar School uses a one-button remote to control the desks, the blackboard, etc.
  • Harmless Electrocution: Any time a character is electrocuted, it's not particularly harmful.
  • Harmless Freezing: In Season 10 episode 8, Penguin Monster freezes Headmaster Tele. The heroes spend the rest of the episode trying to thaw the ice trapping him; when they finally do free him, Headmaster Tele turns out perfectly fine.
  • Harmless Villain: Big and Little M., for the most part. Their schemes to take over planet Xing Xing never actually succeed, much to their disappointment.
  • Heart Is an Awesome Power: Sweet S.'s superpower is bubbles. Which can serve as shields, flying wrecking balls, containment devices, air helmets, transporters, a method of flying...
  • Here We Go Again!: Season 2 episode 34, about Doctor H. being mistaken for a criminal who looks like him, ends with a news report about another criminal resembling him escaping from prison.
  • Heroic Sacrifice: In Season 7 episode 50, Kalo uses what little energy he has left to defeat an army of enemy spaceships, killing himself in the process.
  • His Name Really Is "Barkeep": In episode 29, an alien girl lands on planet Xing Xing and, since she's forgotten what her name is, decides to call herself "Cockroach". At the end of the episode, Doctor H. finds a document from her ship revealing that her name really is Cockroach.
  • Hit Flash: Hit flashes depicting stars appear frequently when characters get hit by something.
  • Holding Both Sides of the Conversation: In Season 3 episode 6, Little M. disguises himself as his own mother for a parent-student conference at school. He winds up having to make it look like both he and his mother are there at the same time, including making it look like the two are speaking to each other.
  • Horrible Judge of Character: Even though the evidence could be staring them right in the face, the heroes would still probably not believe that Big/Little M. are trying to conquer Planet Xing.
    • Although it has been shown that Big and Little M. aren't evil, per say, just doing their job.
    • However, in Season 8, Sweet S. does seem to be prepared to accept the fact that Big M. is "evil" without an insane amount of denial. Haha Huo does get Big M. out of the situation, however.
  • Hospital Epilogue: Near the end of Season 12 episode 25, Sweet S. wakes up in a hospital after having hurt herself in an incident involving a spaceship.
  • Hot Springs Episode: Episode 32 is about the heroes going to a newly-opened hot spring to warm up on a cold winter day after Big and Little M. cut the gas line to Doctor H.'s house.
  • Human Aliens: Certain inhabitants of planets Xing Xing, Gray, etc. (such as Doctor H., Miss Peach, and Big and Little M., to give some examples) look and act so much like humans that they could otherwise easily pass for them if not for the show's space setting.
  • Human Cannonball: The premise of episode 3 is that Big M. and Little M. steal a cannon from a circus act and try to launch themselves back to their home planet using it.
  • Idiosyncratic Wipes: The show often uses a transition of Doctor H. fixing a device.
  • I Owe You My Life: Kalo to Careful S. (even though they really saved each other's lives). Kalo serves Careful S. as his weapon, and the two are close friends.
  • I Was Quite a Looker: Big M. used to be quite the dashing young fellow, and intelligent too, with an IQ of above 200. We get to see this firsthand in Season 9. Then his head got slammed in-between two elevator doors... repeatedly.
  • Idea Bulb: A light bulb appearing near a character's head when they have an idea happens fairly often.
  • Identity Amnesia: Season 2 episode 1 has Careful S. forget who he is after a heavy collision.
  • Impact Silhouette: In Season 5 episode 1, Big M. and Little M. sneak into Doctor H.'s bedroom, where they accidentally set off a bomb and are sent flying through the bedroom wall. The resulting holes in the wall are shaped just like them.
  • Impostor Exposing Test:
    • In episode 27, the gang asks several questions to the two versions of Happy S. to find out which one is the fake one. The fake one wins the test, much to the utter shock of the real Happy S.
    • Trying to distinguish the two Doctor H.s in the first movie, they pose to them the challenge of fixing a large, complex spaceship. (It was also a convenient way to get that spaceship fixed, since they didn't have the funds to do so otherwise.)
  • Improbable Hairstyle: In episode 49, Smart S. cuts Doctor H.'s hair into several impossible hairstyles, including the shapes of a heart with an arrow through it, a pumpkin, and a telephone.
  • Improbably High I.Q.: Before he got slammed in the face by elevator doors and became his current self, Big M. had an IQ of over 200.
  • Inconsistent Dub: The English dub isn't consistent between the title Happy Friends, Happy Heroes, Happy Hero, or Happy Superman.
  • Inelegant Blubbering: Careful S. blubbers when he reacts to a tragic event in Season 7.
  • Injury Bookend: In Season 2 episodes 1 and 2 (a Multi-Part Episode), Careful S. loses his memory after a collision with a spaceship. A similar collision is what restores his memory later.
  • Introductory Opening Credits: The intro contains shots of the heroes with their names beside them.
  • Instant Bandages: Happens several times to various characters. In particular, it occurs twice in episode 11. First, Big M. gets electrocuted by an electric fence and suddenly has bandages on him when he gets up; these bandages fall off a few seconds later. Then, the criminals Happy S. frees from jail suddenly have bandages on them after Happy S. trips over a rock and drops the police car containing the criminals.
  • Invisibility Cloak: Doctor H. invents one in Season 2 episode 15 (which is literally titled "The Invisibility Cloak" and everything). Big M. tries to steal it, only to get Sweet S.'s pajamas instead.
  • Iris Out: It's common for episodes to end with an iris out on a character.
  • Jaw Drop: In Season 3 episode 5, Big M.'s jaw drops when he nearly gets hit by a knife. He promply compresses his mouth closed.
  • Jetpack: Careful S., uses a transformed Kalo as a jetpack, and Careless S. sometimes uses an actual jetpack.
  • Journey to the Center of the Mind: Careless S.'s mind in one episode, resulting in a Battle in the Center of the Mind between them and two false Careless S.s.
  • Just a Machine: One character thinks this of themselves after finding out that they're a robot.
  • Kid Hero: The heroes are revealed to be in 3rd grade in one episode, placing them at around eight years old (at least mentally; they presumably haven't been revived for that long).
  • Last Episode, New Character: In the last episode of Season 1, Careful S. is officially introduced to the superheroes.
  • LEGO Body Parts: At the end of episode 3, Big M. and Little M. accidentally land themselves in a circus act where they're placed in boxes that get cut into smaller segments and scrambled between the two. The experience ultimately leaves their heads swapped.
  • Lethal Chef: Sweet S. It's been said that her cooking is essentially a biological weapon.
  • Limited Wardrobe: In episode 49, Doctor H. goes to his closet to find some clothes to wear for his date with Miss Peach. All of the outfits in his closet are the exact same as the yellow-and-purple one he usually wears.
  • Lions and Tigers and Humans... Oh, My!: Anthropomorphic cows live among the Human Aliens on Planet Xing Xing.
  • Literal Split Personality: Four of Careful S.'s Self-Duplication clones have very distinct personalities, and according to Doctor H. they're all a part of his personality. Evidently, he's extremely good at hiding it.
  • Loads and Loads of Characters: Being a series of over 10 seasons, there have been quite a few characters who have appeared in the show, including both the main characters (whether they're in only one season or a series-wide appearance) and the various one-offs who only appear in one or two episodes.
  • Loves Me Not: At some point in episode 49, Doctor H. plucks the petals off of a flower to predict whether Miss Peach loves him. Whether he lands on "loves me" or "loves me not" is never shown or mentioned.
  • Luminescent Blush: Doctor H. sometimes has luminescent blushes when he is admiring Miss Peach.
  • Make Wrong What Once Went Right: In one arc, Big and Little M. get the chance to go back in time so that they never lose the Jixie stones, thus putting the Heroes on their side now. Also a sort of Alternate Reality Episode, since the Heroes' personalities are radically changed (i.e. Careful S. is now talkative, Happy S. is always sad, Sweet S. acts more cowardly, Smart S. is less confident in himself, and Careless S. has a Photographic Memory).
  • Man-Eating Plant: In Season 4 episode 30, a big plant tries to eat Happy S. but misses him, causing its teeth to crack.
  • Maniac Monkeys: As shown in episode 31 of Season 2, among planet Gray's graduate monsters is a giant ape that Big and Little M.'s commander describes as "ferocious".
  • Meaningful Name: Many.
    • The main heroes all have full names ending in "xin" (and then "chao ren", meaning superhero). Kai'xin means happy, Tian'xin means sweet, Chu'xin means careless, Xiao'xin means careful. Hua'xin's translation of his name does not really fit him, however.
    • The "zhai" of Doctor H.'s 'real' name means someone who prefers to stay at home, or, in other words, does not like going outside.
    • Big Guai is really Big Monster, and Little Guai is Little Monster.
    • Headmaster Tele: He's a headmaster, and his head is a television.
    • Mr. Lightbulb, whose head is a lightbulb.
    • Many other heroes also have names ending in "xin chao ren". Duo'xin means suspicious (of others), Shang'xin means sad, and E'xin means disgusting (in this case, it refers to his dislike of dirty things rather than being dirty himself).
  • Mental Picture Projector: The heroes have memory projectors built into them, allowing them to show their memories to others.
  • Mind-Control Music: The hypnotizing monster in Season 2 episode 16 hypnotizes people by playing a violin.
  • Mini-Mecha: The Car Knights; sometimes they appear to be pretty big, however.
  • Mistaken for an Imposter: In episode 27, the gang becomes convinced that an evil clone of Happy S. is the actual Happy S., much to the utter shock of the actual Happy S.
  • Mobile Shrubbery: Big and Little M. often use this.
  • Monster of the Week: The entire series. Although, most monsters make recurring appearances, and some even have detailed personalities and backstories.
  • The Movie: There are at least three so far. The first, simply titled Happy Heroes: The Movie, was released in 2013. The second, Happy Heroes: The Battle of Planet Qiyuan, was released in 2014. The third, Happy Hero Alliance: The City of Mystery, was released in 2018.
  • Mr. Vice Guy: Mr. Lightbulb is greedy, but the end of any episode featuring this always shows him redeeming himself in some way.
  • Multi-Part Episode: Certain episodes are comprised of two parts, such as the first episodes of Season 1 and Season 2.
  • My Greatest Failure: An important part of Doctor H.'s back-story is revealed in the first movie. He swore to never touch a spaceship again....
  • My Greatest Second Chance: ...and he overcomes his doubt to fix the spaceship to help people get to safety.

    N-Z 
  • Never Smile at a Crocodile: In Season 3 episode 33, Smart S. finds himself in a pit of crocodiles, who try to attack him.
  • New Job Episode: Sweet S. learns how to be a hospital nurse in episode 34. The job only lasts for that episode.
  • New Season, New Name: Every season beyond the first one has a special name appended to it, such as Season 2 being titled Happy Heroes and the Happy Superhero, Season 3 being titled Happy Heroes and the Battle, Season 4 being titled Happy Heroes and the Adventure, etc.
  • Newhart Phonecall: In Season 2 episode 31, when Headmaster Tele takes a call on the phone, the person on the other end of the line cannot be heard speaking.
  • Nice Job Breaking It, Hero!: In Season 2 episode 11, Happy S. enlarges the sun with the magnifying glass to melt the ice monster. It works well to melt the monster, obviously, but then there's the matter of Happy S. having made the sun big enough to make it dangerously hot on planet Xing Xing... oops.
  • Non-Indicative Name: Lampshaded by the heroes in episode 13, upon discovering that Green Town isn't very green at all.
  • Non-Fatal Explosions: None of the explosions seen throughout the show harm characters beyond burning them to the point of appearing singed.
  • The Noseless: The Adelians do not have noses.
  • No Celebrities Were Harmed: The second movie features a band named "Aprilday", a reference to the Taiwanese band Mayday.
  • Not So Stoic: In Season 7 episode 50, when Kalo sacrifices himself to save the planet, even Careful S., who is usually stoic, is holding back tears.
  • Not Quite Flight: Sweet S. flies using her bubbles, and Smart S. flies through his electromagnetism.
  • Not That Kind of Doctor: Averted with the original, since the Chinese language has a distinction between medical doctors and other academics. Doctor H. falls into the latter category. Although this an interesting case, as since the Heroes are robots and Doctor's specialty is mechanics, he can often serve as a doctor for them.
  • Numbered Sequel: Certain seasons sometimes refer to the show as "Happy Friends [number of season]". The English-dubbed episodes forgo the usual tradition of appending a new name to each season and opt to go entirely by the season number instead.
  • Ocular Gushers: Anytime someone cries, their tears gush out like waterfalls. Sad S. utilizes this as one of her attacks.
  • Onion Tears: In episode 10, as everyone is fawning over how good the food from the rice cooker tastes, it gets to the point that they cry over it... or not. It's actually just from Sweet S. chopping up some onions.
  • Only the Chosen May Wield: In Season 10, Kalo finds a trident possessed by evil and somehow manages to wield it, when Big M. and Little M. are incapable as seen in their previous attempts. Similarly, Careful S. finds the Sword of Justice to combat this evil, and it is revealed only those empowered by justness can wield the sword.
  • Opaque Lenses: In episode 32, as Mr. Lightbulb shows the heroes around the hot spring, Smart S. wears sunglasses with lenses that completely cover his eyes.
  • Out-of-Context Eavesdropping: In Season 2 episode 32, Careless S. overhears Happy S. and Sweet S. saying they want to "take over the entire world" and "take care of the doctor and that last superman", leading him to believe the note he found saying the others have turned against him and want to kill Smart S. is true. However, Happy S. and Sweet S. are just playing a video game with Careful S., and the game's villain is called "the doctor".
  • Overnight Age-Up: In Season 10 episode 28, one of Planet Gray's monsters uses an aging gun to turn Careful S. and Kalo into senior citizens.
  • Pass the Popcorn: In Season 3 episode 12, Big M. and Little M. eat popcorn while they watch Kalo confronting Arcas.
  • People Zoo: The aliens in episode 4 capture Big M. and Little M., intending to put them on display like zoo animals.
  • Pinch Me: In episode 49, Doctor H., is excited over Miss Peach saying she's actually willing to date him, and asks Happy S. to punch him to see if he's dreaming it all up. Happy S. whops him with his Happy S. Punch.
    Doctor H.: You know, a nice, light punch would have sufficed.
  • Planet of Hats:
    • Planet Guling from Season 6 has a prehistoric theme, complete with cavemen and dinosaurs inhabiting it.
    • Planet Woof from Season 7 is inhabited by anthropomorphic dogs. Planet Miao, its rival planet, is inhabited by anthropomorphic cats.
  • Playing a Tree: In Season 2 episode 7, Careless S. takes the role of a tree in the school play. He swaps the role with Smart S.'s role as the prince when Smart S. gets hurt and can't play his normal role properly.
  • Plot Allergy:
    • In one episode, an assassin cat tries to kill Careful S. but gets mistaken to be a stray cat. Careful S. takes care of him despite being allergic to cat fur. However, this allergy highlights the irony with Careful S' appearance (he looks like a black cat).
    • In one episode of Season 11, Moondance is shown to have an allergic reaction to mango when she eats Sweet S.'s pudding, which contains it.
  • Plucky Comic Relief: Little M. provides a majority of the comedy during any scene which features him and Big M.
  • Police are Useless: Most of the time. They do their best in protecting the planet, but the enemy is usually too good for them and it's up to the heroes to save the day.
  • Portal Book: In Season 8, the heroes travel into a book titled "A History of Magic" to retrieve Haha Xiao's staffs and wake up the Global Leader.
  • Potty Emergency: In episode 42, Big M. accidentally consumes an orange he laced with diarrhea powder and desperately has to use the bathroom, but a long line of people prevents him from doing so.
  • Power Copying: Shapeshifter, from the 1st movie, after downloading the information from a computer.
  • Previously On: The first two episodes of Season 2 form a Multi-Part Episode. The second of the two episodes has a quick clip at the beginning showing what happened in the previous part. Most other multi-part episodes do the same thing.
  • Prisoner Exchange: Oversensitive S. believes that the Heroes captured his companions Sad S. and Sick S., and so he kidnaps Doctor H. and demands a hostage trade. Of course, the Heroes didn't capture anyone, so they send Sweet S. and Careless S. (disguised as Sad S. and Sick S.) respectively in order to get Doctor H. released, then fought themselves out of the situation.
  • Properly Paranoid: Oversensitive S. is over-suspicious of anything and everything, including random acts of kindness and red bits of fuzz (as potential laser beams, of course). Subverted in that it's almost always nothing to worry about.
    • Except perhaps once, during the aforementioned Prisoner Exchange, Oversensitive S. can tell it's not Sad S. and Sick S., so nearly kills Sweet S. and Careless S. with his fire superpowers.
  • Punny Name: Season 2 episode 6 gives the bus driver's name as Avery One for the sake of a quick joke where the heroes think Headmaster Tele is saying "everyone" instead.
  • Puppy-Dog Eyes: In episode 30, Little Cutie attempts to distract Happy S. from attacking her by making cute-looking eyes at him. It distracts Happy S. for just long enough to give Little Cutie a chance to attack him back.
  • Pure Energy: The Heroes can fire blasts of this stuff from the gems on their foreheads.
  • Purple Is the New Black: A non-villain variant. Later seasons change Careful S.'s suit from black to purple.
  • Quarter Hour Short: Every episode is about 10 to 12 minutes long.
  • Real World Episode: One episode has Big M. coming to the Happy Heroes office and meeting Leo Huang. Cue Rage Against the Author for all the crap he's been forced to undergo.
  • Really Dead Montage: One character sort of gets one, as they look at the images and scenes flashing in front of them right before they die.
  • Red/Green Contrast: Big M. wears a green suit of armor with several red features on it.
  • Repetitive Name: A location name example. The Lookus dub calls planet Xing by the name of "Xing Xing".
  • Ridiculously Human Robots: Pretty much the only difference between the robots and the humans is appearance (sometimes), and that some robots (including the heroes) like to drink oil.
  • Riding into the Sunset: Referenced in Season 2 episode 16. Big and Little M. are walking away from the school and into the sunset when Little M. mentions that he's only seen this happening in movies and that it's rather old-fashioned. Big M. says that it's actually a sunrise and that it's not old-fashioned.
  • Robinsonade: In episode 38, the heroes wind up draining all their energy while fighting a wrecking ball monster, thus stranding them on the island where the fight took place.
  • Robot Antennae: A vast majority of the robots inhabiting planet Xing Xing have an antenna on their heads.
  • Robot Hair: Some of the robotic citizens of planet Xing Xing have full heads of hair.
  • Robotic Reveal: At one point in Season 6, it's revealed that Buding, the Village Mayor's daughter, is actually a robot.
  • Rock–Paper–Scissors: In episode 23, Big M. and another person wanting to be a teacher for the superhero class do a round of rock-paper-scissors to decide who gets chosen. The other person wins.
  • Rube Goldberg Device: In Season 2 episode 1, Big M. makes a device to shoot meatballs at some guard dogs as a distraction. How does it work? Big M. scares a squirrel, which runs in fear and bumps into a hammer that knocks over a bunch of balls. The balls are dispensed onto a wheel which dumps them onto a little cardboard platform which, when weighed down, push a button that causes a robotic arm to appear and, finally, flick a meatball at the dogs.
  • Running Gag: In episode 48, Big M. keeps finding Careless S.'s microbombs, when then proceed to explode on him. When the heroes fight the communication machine monster, Big M. gives Careless S. one of the microbombs to use on it.
  • Schizo Tech: In Season 6, planet Guling is entirely prehistoric in nature, complete with a lack of modern technology... save for the presence of Sad S., Sick S., and Oversensitive S., who are all robots like the main characters.
  • School Play: In Season 2 episode 7, the heroes perform a play at their school where a princess is turned into a swan by an evil owl wizard.
  • Screw This, I'm Outta Here!: In episode 16, when the robots in Doctor H.'s internet router copy the appearances and abilities of the heroes' Car Knights, Smart S. says "According to me, there's only one way to fix this. And that's... getting out of here!" before flying away.
  • Sea Monster: Episode 24 is about the heroes trying to find a sea monster on the beach so they can defeat it.
  • Second Episode Introduction:
    • The heroes don't formally appear in the series until episode 2 (the second half of a Multi-Part Episode), where they finally form from the Jixie stones Big and Little M. had dropped.
    • In Season 7, the Miaolings aren't properly introduced until episode 2.
  • Self-Duplication: Careful S., who appears to be able to create many clones of himself without tiring out too much. At least one episode shows he is able to duplicate others as well.
  • Send in the Clones: At the end of episode 27, Big M. clones himself in yet another attempt to take over the planet. The clones argue over which one is in charge.
  • Shape Shifter Showdown: Somewhat, between Kalo and Baer, but both can only transform parts of themselves into inanimate objects.
  • Shapeshifter Weapon: Kalo can morph his arms into the shape of a weapon.
  • She Is Not My Girlfriend: In episode 9, a female fan notices Sweet S. with Smart S. and thinks she's his girlfriend, running off in heartbroken tears. Then Careless S. appears, and a male fan thinks that's his boyfriend. Then, after that, Happy S. tells the fans that he doesn't have any friends at all... poor choice of words there, needless to say.
  • Ship Tease: Kalo hugging Careful S.
    • Some of the interactions between Smart S. and Careful S. count as this.
    • Smart S. and Careless S. watching the stars together, and their other bonding moments.
    • Careful S., after rescuing Sweet S., and blushing as she thanks him.
    • Sweet S. supporting the injured Smart S. as they walk off into the sunset.
    • And the episode involving Sad S. and Careful S. in Season 6.
    • Careless S. giving the solar-cooking pan to Sweet S. and then later rescuing her, in the 1st movie.
    • Doctor H. and Miss Peach (finally) going on a date at the end of the 1st movie.
    • Happy S. and Zelia in the 2nd movie.
  • The Show Must Go Wrong: In Season 2 episode 7, as the heroes are performing the school play, Big M. scatters banana peels all over the stage floor to slip them up. Cue obligatory hilarity ensuing.
  • Sick Episode: Little M. comes down with a cold in episode 8 and starts sneezing uncontrollably. Big M., after being sneezed on by Little M. and thus getting the cold from him, is given the idea to sneeze on everyone on planet Xing Xing to make the entire population sick.
  • Signature Move: Happy S.'s "Happy Knight Iron Punch".
    • Smart S.'s "Smart Knight Magnetism", "Smart Knight Electric Chain", and "Smart Knight Invincible Drill".
    • Sweet S.'s "Sweet S. Bubbles" and "Sweet S. Shield".
    • Careless S.'s "Careless Flying Missile". note 
    • Careful S.'s "Careful S., Duplicate".
    • Oversensitive S.'s "Oversensitive Fireballs".
    • Sad S.'s "Sad Tidal Wave".
    • Sick S.'s "Sick Tornado".
    • Headmaster Tele and Dragon (his student) each have their "Twister", but they're slightly different in appearance.
  • Signature Sound Effect: There's a distinct sound effect that usually plays when Smart S. uses his magnetism ability.
  • Simpleton Voice: The Lookus English dub gives Careless S. a more stupid-sounding voice to reflect his forgetfulness.
  • Single Task Robot: The robot Doctor H. invents in episode 30 is made specifically to clean up trash by compacting it into a cube. This gets turned against Doctor H. and the heroes when the former accidentally causes it to hunt down and compact anything that's called "useless".
  • Single Tear: Careful S. sheds a single tear after a tragic event almost happens in season 5.
  • Smarter Than You Look: Careless S. may look silly, but he is quite intelligent.
  • The Smurfette Principle: Sweet S. is the only female of the main heroes.
  • Snot Bubble: In Season 9 episode 1, Big M. fakes sleepwalking to avoid catching Doctor H.'s suspicion. He produces a snot bubble from his nose to make it convincing.
  • The Song Remains the Same: The Lookus English dub leaves the theme song in Chinese.
  • Space Is Noisy: In episode 43, Big and Little M. are able to talk freely despite being in space.
  • Species Surname: A lightbulb named Mr. Lightbulb.
  • Speech Impediment: The penguin monster from Season 2 episode 40 has a stuttering problem. His name even has a stutter built into it - "P-p-p-p-penguin M-m-monster".
  • Split-Screen Phone Call: In Season 5 episode 1, Big M. calls Doctor H., and both are depicted on separate sides of a split screen.
  • Spot the Imposter: In episode 27, the heroes discover an evil clone of Happy S. alongside the actual Happy S. and try to figure out which one is which.
  • Squashed Flat: In episode 37, Happy S. is depicted in a news report getting flattened by a group of robots he has freed running right onto him.
  • Stock Animal Diet: In Season 7, the dog-like Woofians like to eat bones and the cat-like Miaolings like to eat fish.
  • Stock Femur Bone: In Season 7 episode 1, the bone the ambassador of Planet Miao offers to the president of Planet Xing Xing is a typical cartoon depiction of a bone.
  • The Stoic: Careful S. generally doesn't feel many major emotions.
  • Story Arc: Occasionally interposed between the regular episodes. Major ones include the Fairy Tales arc, the Mystery of Guling arc, and the Legend of a Hero arc.
  • Strange Salute: The Adelians have the right-hand to the chin, palm facing downward.
  • Strong Family Resemblance: Doctor H. has a very similar hairstyle to his father.
  • Super-Deformed: One scene in the Season 9 intro depicts Doctor H., his father, and the heroes in a cutesy art style with little bodies and big heads.
  • Super Strength: Happy S. has this superpower.
  • Superhero Origin: The first two episodes give the origins of the heroes - they were formed when Big and Little M. accidentally dropped their Jixie stones, which then fell to planet Xing Xing and got attached to vehicles. When Doctor H. fixed these vehicles, it created the heroes.
  • Superhero School: Headmaster Tele is the principle of a school which teaches superheroes about various superpowers and similar subjects. According to what Tele says in one episode about some marks left by previous students, the likes of such famous superheroes as Spider-Man were taught at that school.
  • Superheroes Wear Capes: Inverted; the superheroes don't wear capes, but Big M., the villain, wears one.
  • Supernatural Is Purple: Haha Huo, who has magic powers, wears purple clothes.
  • Sweat Drop: Characters sometimes make facial expressions which have big sweat drops on them.
  • Sweet Tooth: Happy S. loves to eat chocolate and other sweet treats.
  • Taken for Granite: The rock man in episode 37 turns anything he touches into stone.
  • Talk to the Fist: Kalo's arms are chained to either side of him, he can't move his legs, and the room he's in cancels out superpowers. All superpowers. So when Caesar gets closer to him to gloat, Kalo headbutts him... hard.
  • Talking with Signs: In episode 15 of Happy Heroes and the Magical Lab, Haha Huo sucks the sound out of all the electric items on planet Xing Xing. This includes a screen on a building broadcasting the news with Miss Peach, who has to be accompanied by signs showing what she's trying to say.
  • Team Hand-Stack: In Season 10 episode 5, the heroes do this after they've defeated the monster who was carrying the gun Careless S. really liked.
  • Team Shot: The intros often contain shots of all the heroes standing together as a group.
  • Tears from a Stone: In Season 7 episode 50, Careful S., a robot, cries when Kalo sacrifices himself to save Planet Xing Xing from an army of invading spaceships.
  • Technological Pacifist: Doctor H. creates a wide variety of non-weapon things.
    Doctor H.: Why does it have to be a weapon? The same materials could be used to create things useful to people!
  • Teen Genius: Doctor H., when he was younger, was able to build some decent inventions. Of course, he has been able to do so since he was a young child, so that's not much of a surprise there.
  • Teleportation: Careful S. has this as a superpower, but it appears that he can only do so for short distances.
  • Tempting Fate: Big M., after regaining his memory in Season 2 episode 50, is informed by Little M. that someone told Happy S. their shark's weakness - the someone in question being Big M. himself while he was amnesiac, which neither character realizes. Big M. exclaims that the person who gave away the shark's weakness should be hit on the head by a flower pot and attacked by angry dogs... which is exactly what happens to him a second later.
  • That Poor Cat: In Season 2 episode 21, Big M. falls out of a high window. A cat can be heard meowing when he lands on the ground.
  • Theme Tune Cameo:
    • In Season 2 episode 44, Big M. presses a button on his voice toner which causes it to play the show's theme song.
    • In episode 15 of Happy Heroes and the Magical Lab, a singer holds a concert where she sings the theme song.
  • This Is a Drill: Smart S. has an actual drill as a Car Knight, and one made of electricity when he's unarmored.
  • Three Wishes: The wishing wood in episode 35 grants the heroes three wishes, as does the bottle genie in episode 20 of Season 2.
  • Through a Face Full of Fur: The various robot citizens of planet Xing Xing are shown to blush on several occasions, despite being made of metal and therefore having no logical reason to sport a visible blush.
  • Thundering Herd: At the end of Season 3 episode 34, Big M. is chased down by some of the monsters. The monsters produce a cloud of dust under them as they chase after him.
  • Tickle Torture: In Season 2 episode 8, Careless S. shoots Doctor H.'s alarm clock from his gun. The clock proceeds to attack the "scary" monster by tickling it until it reverts back to normal size.
  • Time Machine: Doctor H. makes one in Season 9 in an attempt to prevent his father from being taken away by aliens. It's made out of cardboard, but somehow still works.
  • Time-Travel Episode: Season 9 is a Time Travel Season. The heroes accidentally start up a time machine and get sent 25 years into the past. They decide to take care of the era's young Doctor H., who has just lost his father.
  • Title Confusion: The English translations can't decide whether to call it Happy Friends, Happy Hero, Happy Heroes, or Happy Superman. Most third-party sources call it Happy Heroes because 1. the Alliterative Title makes it easier to remember, and 2. there's more than one hero, so the "Heroes" part should be plural.
  • Title Scream: The title card of episode 36, "Careless Goes Missing", has a robot shouting the episode's title through a megaphone.
  • Title: The Adaptation: The 1st movie's official title is roughly "Happy Heroes: The Movie", though many times "The Movie" will be dropped.
  • To Be Continued: The multi-part episodes have the text "to be continued" pop up at the end of every episode comprising the arc before the final part.
  • Token Motivational Nemesis: 雷公怪 (Thunder M.). Since in Season 9, all traces of the heroes are erased from the past, Thunder M. is likely a significant motivation for Kalo to yearn to become a hero. Revealed in Season 10, Thunder M. physically and emotionally abused Kalo by tricking Kalo into thinking he could rescue his friend when he was young. Overlaps with It's Personal.
  • Tokyo Is the Center of the Universe: Used with the main city, where everything happens. It's where all the invasions are always centered, it's where the Department of Defense and the Global Leader's headquarters is, and the closest city to the Heroes' home... You'd think that the invaders would have found an easier place to attack by now. This is the only city ever pictured on the planet, however. note 
  • Transformation Sequence: Whenever the Heroes summon their Car Knights. The sequences themselves are generally pretty short, and multiple characters' transformations will be played at once if possible.
  • Transforming Mecha: The Car Knights all have a vehicle form and a battle form.
  • Trapped in the Past: The premise of Season 9 is that the heroes accidentally set off a time machine Doctor H. created when he was younger and are sent to the past.
  • Truncated Theme Tune: The season Funny Highlights cuts the theme song down to just 30 seconds.
  • TV Head Robot: Headmaster Tele has a TV screen for a head.
  • A Twinkle in the Sky: Several times. To give one example, in episode 12, Careless S. and Mr. Lightbulb are flung into the sky by a demolition robot. They disappear from sight with a twinkle.
  • Twinkle Smile: In the Season 4 intro, Happy S. smiles and his teeth have a visible sparkle.
  • Tyrannosaurus rex: Nearly every dinosaur that lives on planet Xing Xing resembles a T-rex.
  • Vague Age:
    • Everyone; although it was revealed in Season 8 that Big M. is forty years old. Also, Doctor H. is 29.
    • It is shown in a background that the Heroes are in 3rd grade, so they might be around 8 years old. Mentally, anyway, since they haven't been revived for that long.
  • Villain Opening Scene: The first episode begins with a scene showing how Big M. and Little M. lost the Jixie stones.
  • Vine Swing: In episode 14, Doctor H. swings on a vine in Mr. Lightbulb's garden, only to hit a wall.
  • Visible Invisibility: In Season 2 episode 15, whenever a character is using the invisibility cloak, most of the time they're still visible but transparent.
  • Visible Sigh: It's fairly common for characters to produce a little cloud of breath when they sigh.
  • Visual Pun: At the end of episode 16, Big M. and Little M. find themselves using a Trojan horse in Doctor H.'s internet router. The Trojan horse is literally a giant rocking horse.
  • Vomit Indiscretion Shot: It's common for characters to vomit without making any attempt to hide it.
  • Wasteful Wishing: In Season 2 episode 20, Big and Little M. waste the three wishes given to them by the bottle genie by wishing for a lot of money (so much that it crushes them), wishing for no money (which gives them poor clothes), and then wishing for themselves to go back to normal.
  • Watch Out for That Tree!: In episode 14, Doctor H. accidentally hits a wall while doing a Vine Swing in Mr. Lightbulb's garden.
  • Water Guns and Balloons: One episode had the students of the school dunking it out in a water gun fight. You were "out" when the paper taped to your chest got soaked. note 
  • Wax On, Wax Off: Principal Television once trained the heroes for a basketball match by making them do the dishes. It worked.
  • We Will Meet Again: The space pirate in episode 47 says "You haven't seen the last of me!" after initially fighting Happy S. He does indeed reappear later in the episode.
  • Weather-Control Machine: In episode 39, Doctor H. makes a machine that can change the weather. The machine is shown to be able to make snow and lightning bolts, among several other options that are never seen in action.
  • Wheel o' Feet: In episode 41, one shot of Happy S., Sweet S., and Doctor H. running depicts their legs as spinning swirl shapes.
  • White Gloves: In later seasons, Miss Peach wears a pair of white gloves on her hands.
  • Wingding Eyes: It's common for characters' eyes to become certain symbols in a given situation, such as spiral eyes when they are dazed or heart-shaped eyes when they fall in love (the latter is especially true for Doctor H. when he's around Miss Peach).
  • Wire Dilemma: In Season 2 episode 6, Careless S. has to disarm a bomb on the school bus by cutting one of its two wires, a red one and a blue one. He eventually decides to pull both wires out, causing it to explode anyway, though Happy S. does get the bomb out of the bus in time.
  • Wolves Always Howl at the Moon: In Season 4 episode 30, Little M., who is dressed as a wolf, howls at the moon.
  • Worst News Judgment Ever: In episode 14, the news gives a lot of attention to a musician missing a note.
  • X-Ray Sparks: Often, whenever a character gets electrocuted, their skeleton will become visible for a second.
  • You Answered Your Own Question: There's an episode where Little M. asks what the number for 911 is.
  • You Are Number 6: One character from later on in the show is named Nine.
  • You Can See That, Right?: In episode 46, the heroes inexplicably start to see random vegetables and other foods appearing in their home in odd locations (such as a carrot appearing next to Smart S. in his mirror but not anywhere else). A few of the heroes ask the others if they saw anything too.
  • You Can't Go Home Again: Big M. and Little M. crash-land themselves on Planet Xing Xing and can't return home to Planet Gray.
  • You Gotta Have Blue Hair: Cockroach, a girl from planet Gray who first appears in episode 29, has light blue hair.
  • You Make Me Sic: In Season 2 episode 32, Happy S., Sweet S., and Smart S. find the mysterious note that Careless S. found earlier, which says that the heroes have turned against him. Smart S. quips that the note should look suspicious just from reading it because... it has two spelling mistakes.
  • Your Television Hates You: Overlaps with Cold Turkeys Are Everywhere. In episode 46, Big M. and Little M. try to get their minds off of their lack of food by watching TV, but every program they see is related to food in some way.

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