These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
In "The Virus," Teri (the paper cutout bear) is aghast that Gumball may not have showered in three months. Gumball replies, "Of course I've showered. I'm not an art student."
In "The Fraud," when Principal Brown lectures Gumball and Darwin on coming into school wearing nothing but Body Paint, he says, "Surely, you can't walk around looking like you fell asleep at an art student's party."
Bizarro Episode: Though the entire series can count, there have been episodes that were weird, even by their standards:
"The Sweaters," a Karate Kid parody featuring human cartoon characters (modeled after the ones from late 1970s-mid-1980s cartoons, in terms of how stiff and stylized they are) that not even Gumball and Darwin want to get involved with.
"The World," an entire episode devoted to showing that everything in Elmore (and possibly the universe) really does come to life in the form of multiple short sketches. It's about as weird as it sounds. "The Extras" is similar, except it focuses on the background, one-shot, and very minor characters that appear as extras.
"The Tape" is what would happen if Gumball and Darwin created a Robot Chicken episode. Parodies, fake commercials, screen wipes, and gross out humor ensue. The only differences between this episode and an average episode of Robot Chicken is that it's not as adult and the main point of the episode is Gumball and Darwin making a home movie (which gets deleted at the end by mistake).
"The Joy": A survival/found footage/zombie apocalypse horror film parody with Miss Simian as a main character and shot mostly through her camcorder.
"The Procrastinators," where the whole plot is Gumball and Darwin wasting time (presumably the viewer's time) before they can take the trash out. It's probably the most random episode in the series (though the show has been renewed to season five, meaning there will most likely be more episodes more random than this).
Broken Base: As of the episode "The Shell," Penny's true form without her shell. Some fans love her design and the idea of her being a shape shifter while others hate the fact that she is not a deer. The latter goes as far as to pretend that the episode never happened.
As of now, the fans are already warming up to Penny's true form.
Dude, Not Funny!: The sudden Dead Baby ComedyBlack Comedy Burst in "The Job" seems incredibly out of place for such a more-or-less lighthearted show, even in the name of Black Comedy, and it's more disturbing than actually funny, especially since they hold on the image of the pizza parents disturbed faces for several seconds.
The entirety of "The Hero" which is considered by many to be the worst episode in the entire series for being too dramatic (though some fans do like the heartwarming moments). The episode is more of a Base Breaker with many people citing it as the weakest/worst episode so far.
Growing the Beard: Season 2 saw a massive improvement for the show with its Art Shift (though some fans do consider season one's animation and art to be better) and the stories became more structured and coherent.
Season 3 made the show even better. Removing Gumballs jerkass tendencies from Season 2/making him smarter and nicer than in Season 1, making the animation smoother with new moving backgrounds thanks to a new animation studio, Gumball and Darwin actually act more like real kids, and finally achieving the perfect balance of comedy drama and action. Its come a long way since Season 1.
Hilarious in Hindsight: During "The Sock," Darwin says to Gumball that he walks like a princess. Cut to "The Dress" where he actually looks like a princess.
Bobert. All he wants is to have emotions and be human. After finding said emotions, he took Gumball's life. Rather than try to teach him right from wrong, Gumball simply decides to "Reboot" him, deleting his memories and emotions.
William (the eyeball with wings) can't physically speak, but he hasn't realized this until after he attacked Gumball and Darwin for ignoring him.
If you think about it, Nicole can be this. She's the breadwinner of the family and due to her husband'sirresponsible tendencies, she has to do the housework as well, which is why she's very stressed and sometimes unstable which she sometimes takes out on her own family.
Surprisingly, Granny Jojo is this. In "The Man", it's revealed that his Richard's father left her and him to buy milk 42 years ago and never came back. Once you think about this, this also applied to Richard due to how he's raised into what he is today as "The Authority" showed.
Launcher of a Thousand Ships: Gumball has a certain charm that can make him really go with any other pairing despite having his eyes only on Penny. There's the Fan Preferred Pairing with Carrie, also Tina Rex, his prominent bully Jamie, Carmen despite her in love with Alan, germ fearing Teri, stalker fan Sarah G. Lato, Molly, Rachel, and even his own mother as well as his little sister Anais! That's just the females as he's also paired with his adopted brother Darwin...
Nausea Fuel: In "The Knights", Gumball tries to get Penny's father to like him by cleaning the sweat from under his arms while he is jogging, and after he tells him to quit, Gumball then washes his mouth with the same rag. Ew.
Purity Sue: Darwin is constantly portrayed as unfathomably pure and innocent., to the point where the very embodiment of Jealously itself inhabits and body and says "I'm actually very content with my life right now," though there have been several times where he's shown to be as petty and jerky as Gumball and does some rather questionable acts, like kidnapping Tobias' mother to get a video game back. The only reason he gets more leniency is because he's still adjusting to the whole sentience thing.
In fact a recurring plot/gag is that whenever Gumball develops a serious problem, Darwin will snap him out of it... only to develop the exact same problem, only even worse. (i. e. "The Phone", "The Sidekick", and "The Banana")
And the one time Darwin gets jealous in "The Burden" over Gumball giving more attention to Penny, the upcoming episode "The Bros" will likely escalate that behavior. If this trope is anything, it might as well be a Deconstruction.
Refuge in Audacity: Principal Brown's relationship with Miss Simian. On adult-oriented cartoons like The Simpsons (Principal Skinner and Mrs. Krabappel) and Daria (Ms. Barch and Mr. O'Neill), whenever they have a teacher in a relationship with a principal or someone from teaching staff, they try to hide it, as they know that a relationship like that causes a conflict of interest and is usually frowned upon by the higher-ups. In the case of this show, Principal Brown and Miss Simian don't try to hide it, despite it being pointed out that a relationship like that is considered unprofessional (cf. "The Sock," when Gumball and Darwin use Brutal Honesty when Principal Brown asks them what's wrong).
In "The Kiss", the crime fighting police drama Granny JoJo is watching has a similar theme song from CSI: Miami
Richard's song in "The Hero" has some similarity with the Malvina Reynolds song "Turn Around"; aside from the fact of the subject being both about seeing their child grow up, there's also how they sang the words "my little one".
A blatant soundalike of Herbie Hancock's "Rockit" plays over the senior citizen dance sequence in "The Extras", right down to the record scratch breaks.
They Changed It, Now It Sucks: The streamlined character designs in season two have drastically changed the basic movements and mannerisms of the Watterson family. In some ways they now move more fluidly, but many other times, exceptionally choppy. The characters themselves aren't as colorful as they used to be, as if they're constantly in a slight shadow.
The news that Logan Grove and Kwesi Boakye would be replaced as the voices of Gumball and Darwin did make some fans upset, even though their replacement voices sound very similar to the originals.
Ugly Cute: Kenneth. Anais even mentions this trope by name when describing him.
"Well, I guess you're kinda ugly-cute."
Richard, Baby!Gumball and some characters can be this.
What an Idiot: Pretty much happens to every character, whether or not they're established to be the smart/sane ones.
What Do You Mean, It's for Kids?: Like most of Cartoon Network's oeuvre (past and present), this show has a lot of humor/moments that would be more at home on an [adult swim] show, but thanks to Cartoon Network's censors being permissive at best and incompetent at worst, appears on a TV-Y7-FV shownote it's especially odd that this show would have a TV-Y7 rating on American TV, considering that most of Cartoon Network's shows outside of Adult Swim have a TV-PG rating and that the show has a PG certificate in the United Kingdom. However, this show balances its kid humor with adult humor, making it play out like a Lighter and Softer take on The Simpsons or Regular Show — at least it did in season one. From season two to now, the surreal humor, Parental Bonuses, and Comedic Sociopathy / Black Comedy became more prominent, though it doesn't detract from still being for kids, like, say, what happens with Adventure Time and Steven Universe when they suddenly Mood Whiplash from cute, innocent kids' show to disturbing and depressing show for older audiences.
What Do You Mean, It Wasn't Made on Drugs?: The entire show can get into some majorly trippy moments, but special mention goes to the opening that only aired once in America and has since been truncatednote Overseas viewers either can see the opening in its entirety or have a specially-made opening. The ones from Japan and India are just as trippy as the original version that aired in the UK and once in America. It should be noted that the reason why the show looks the way it does isn't because of drugs. It's because Ben Bocquelet wanted to do a show with different cartoon character styles and was inspired when he superimposed the mascots he created (made from different animation styles: stop-motion, 2D, Animesque, 3D, claymation, live-action, etc) for advertisements as the characters on a realistic photograph of a school.
Larry the rock-head clerk, as seen in the episodes "The Finale" (who says he has to take multiple jobs to pay off the damages done by the Wattersons) and "The Pizza" (who is so sick of getting stiffed out of a tip that he quits, which brings about the end of civilization).
X Meets Y: This show is best described as Diary of a Wimpy Kid meets The Simpsonsnote The Wattersons, like the Simpsons from seasons one to five, were a semi-dysfunctional family that most of the townspeople tolerated at best and wished they would move away/be put in jail/die at worst. Also, some of the jokes and storylines on the show have been done on The Simpsons, but here, they're shorter and try to go for something different/more family friendly meets Regular Shownote in that the character designs are unconventional, it has a Mundane Made Awesome setting, it was originally going to be an [adult swim] show, and weird stuff happens in almost every episode with the aesthetic of Who Framed Roger Rabbitnote the animated characters in a live-action setting, only The Amazing World of Gumball uses photographs, not live-action footage — except for the antique appraisal show on "The Watch", the weather report on "The Law," and the news report about the crime wave on "The Pizza" and possibly Drawn Togethernote different types of animation styles coming together, only Drawn Together stuck with 2D animation styles from different studios/styles (Princess Clara was a spoof of Disney princesses, Toot Braunstein was a spoof of Betty Boop and the 1920s black and white rubber-hose cartoons, Captain Hero was a spoof of the stylized, Golden Age 1940s Superman cartoons, Foxxy Love was a spoof of Hanna-Barbera in the 1970s when they had shows like Scooby Doo, Where Are You? and Josie and the Pussycats, Wooldoor Sockbat was a spoof of the loose, wacky cartoons made famous by Tex Avery, Bob Clampett, and John Kricfalusi, Xandir was a spoof of video game animation, and Spanky Ham was a spoof of stiff, crude modern animated shows made by Adobe Flash), while the animation styles of The Amazing World of Gumball range from 2D traditional to 3D realistic and even include puppets, claymation, and stop-motion .