Alternate Timeline: What occurs in the crack community is completely non-canon from the rest of the game, but has somewhat its own separate (and hilarious) continuity, and is often referred to as "Labocanon". This crack canon does have less actual continuity to it to, for obvious reasons.
Interestingly, unlike most games, the crack-community's "canon" is actually has prominent and evolving characterization, albeit one that is aware of the goings-on in the main game. Chances are, if one of the Ink City characters shows up in Dear Mun, the version you're speaking to is "Labocanon" (due to the meta nature). Of course, for some characters (Deadpool and Ren come to mind) the difference is almost completely nonexistent.
American Accents: Priscilla has a southwestern accent, being as she's from the Mojave Desert (200+ years into a post-nuclear-apocolyptic future not withstanding).
And I Must Scream: Mordecai, briefly while being trapped in a "black hole" beneath the Ink Well.
Rigby when he was under mind control.
Most of what happens to Thrasher throughout the entirety of the me1TD0WN Event.
Happens to the Doctor after going into the forest to find the TARDIS. He seems surprisingly okay with it.
Trevor tried to inflict this fate on Yakko and Rigby. Didn't work out the way he planned it.
Anti-Hero: Heloise's morality is very affected by Jimmy's presence. Before he arrived she was very much Neutral Evil or even Chaotic Evil. By the time he'd joined her in the city she'd slid back into Chaotic Neutral, and even felt a bit of remorse for what she did while he wasn't around. Needless to say, she does not have an easy time after Log #36...
Arc Number: The different overarching plot segments that occur in the game are referred to as "seasons". "Season 1" ended with the first confrontation with Audrey II, and "Season 2" concluded with game-wide "World Split" Event. The game is currently in "Season 3".
Arc Words: Ostensibly, "Fly away, birdie... fly away home." for the "Season 1" arc.
Ascended Meme: "Labocabana", the title of Yakko's parody of "Copacabana", later became the name of the game's crack community.
The Mayor's Consort may be something of a subversion, as she's been described as "numerous aspects of [her player's] personality and mental process exaggerated and personified into something of symbolic representation of [her] creativity"
Badass Grandpa: Norrington, while being an Elder God, still counts since he looks/acts like an old man and has grandchildren who he worries about. Too bad he'd rather be a Retired Badass, but can't seem to catch a break.
Don's usually a Nice Guy willing to help others and get sugar, but mess with his brother and he's perfectly willing to leave you floating in a pool of paralytic fluid.
When Swindle unleashes the Cosmic Rust upon Ink City as part of an ill-concieved plan to blackmail the sweet-natured Skyfire into trading his cannons for the cure, Skyfire makes it very clear he doesn't barter with his friends' lives.
Big Brother Instinct: In the absence of the other Warner sibs, Yakko has taken Rigby on as a psuedo-sibling.
Don and Wakko show cases of Little Brother Instinct upon discovering just how Trevor's been treating their big bros.
Brick Joke: The ability of one player's avatar to become a Gomamon, a fact established during a No Fourth Wall meme several weeks prior, comes in handy when swimming through the fountain is necessary to recover another avatar.
Somewhat easily missed if you're not familiar with his canon; what Norrington receives from The Mayor's Consort. "Here are your eyes back, Doctor~"
Bunny-Ears Lawyer: The Riddler (P.I. Version). Upon first arriving in the city, he gains no points towards people believing him sane by rambling maniacally under his breath (in actuality, he was just trying to deduce how he'd gotten there).
Cassandra Truth: Twilight tried to warn everyone about Discord, but most of the responders to her broadcast were more concerned with her being a talking purple unicorn. A few did take her seriously, but none of them were in any position to react when he made his move.
Chronic Hero Syndrome: Ion Spark. She's dead-set on trying to help everyone in the City, even if they don't want her to. Unless of course, they're a villain.
Ichigo has shades of this. Taking requests from fans and family was such an intregal part of life back in the Great Cosmos that helping others out has become an emotional crutch of sorts simply because it's familiar.
Cruel Mercy: Trevor refuses to take revenge on Berri for what she did to him. He deliberately waits to inform her of this until after she's made a city-wide confession, in order to watch her suffer. The only reason she confessed in the first place was to keep him from punishing the wrong Mew, so the timing was critical.
Deal with the Devil: Caroline trades five ounces of energon for blueprints for the handheld portal gun. This led to her having to make a second deal with a different devil, as Starscream demands more information and loyalty in exchange for her breach of trust.
Death Is Cheap: Whenever any character dies, no matter how horrible their death is, they simply respawn sometime later at the Ink Well where they first arrived.
Defrosting Ice King: Mr. House is definitely starting to become this, with Priscilla as his heat source. Especially after she's able to temporarily enter his virtual reality mainframe, and becomes not only the first human being he's had physical contact with in over 200 years, but actually hugs him.
Digging Yourself Deeper: Trevor, meeting an enraged Wakko for the first time, attempts to convince him that his own brother should be paralyzed and tortured for his own good. Needless to say, Wakko doesn't buy it.
Disproportionate Retribution: Someone fed you to a man-eating plant? Kidnap their best friend and perform a lobotomy on them - without any form of anesthesia - and insert a chip into their brain that puts them under mind control and tell them to kill said person who fed you to the plant. Granted, being eaten alive is pretty horrible, and she was especially vengeful after losing her Morality Chain, but it was still rather extreme.
Divergent Character Evolution: As mentioned above, LaboCanon is seperate from the main game, to the point that certain characters have become vastly different in Labo compared to Ink City.
Phoenix is found suffering from a hangover. The tag description calls him a binge drinker.
Early-Bird Cameo: Lucius consistently appeared in the crack community memes weeks before being formally introduced into the main game. Although for now dropped from the main com, he continues his presence in Labocabana.
Elegant Gothic Lolita: A distinctive feature of The Mayor's Consort. Her account name even lampshades this.
Embarrassing Nickname: Due to a humorous misunderstanding, Heloise calls Mordecai "Ladybird", simply because it pisses him off.
Engineered Public Confession: Rigby managed to record one of Trevor's many attempts to capture and control Yakko and him, and replays it for the entire City to try and shatter Trevor's public image.
Everything's Better with Princesses: Ichigo is quick to tell others that she's a Royal Cousin, emphasizing the royalty aspect. There's also Princess Angelina Contessa Louisa Francesca Banana-Fana-Bo-Besca the Third, aka 'Dot'.
Trevor and GLaDOS are also set to butt heads in the near future.
Expendable Alternate Universe: Caroline justifies her decision to aid Starscream with a variation on this. Sure, betraying Optimus Prime to him will surely cause the deaths of millions of innocents upon his return home... but that's not her universe, so what does that matter to her?
Expy: The Inky Mayor is very often compared to The Warden. His human form just adds to this.
GLaDOS is also motivated by this, and Caroline as well... to the point that Caroline is willing to make several deals with shady characters like Starscream, Trevor, and GLaDOS herself for the sake of furthering her research.
What Megatron did to Caroline was pretty much to prove to Ink City how evil he is.
Four Is Death: Openly, blatantly referenced by Berri when her fourth post to the community involves displaying Trevor in a paralyzed but still-living And I Must Scream state.
Fourth Wall: Located in the forest; touching it leads to bad things.
Caroline is poised to go through this as well, once she learns the Awful Truth.
From Bad to Worse: The first log with Benson, Mordecai, and Heloise slowly gets more and more dark and disturbing.
Invoked by the name of the post wherethe feral Yakko makes it back to the City.
Seems to be one of the more severe mental side-effects of touching the fourth wall. While Berri never hit the level of physical deterioration that Thrasher did, it's brought her in contact with 'past selves' and left her in a state notentirelyunlikeAltogether Andrews.
Good Scars, Evil Scars: Several of the characters possess scars of some kind, especially in the head/face region.
The Government: Who is The Inky Mayor? How does the city actually run?
Has Two Daddies: Legato. Starscream and Soundwave have also formed an odd family unit with Jetstorm.
Hearing Voices: Ren starts hearing a red-tinted, purple-tinted for a while, voice during the World Split that keeps abusing the fourth wall; it hangs around afterward.
Heloise also starts hearing voices after the World Split is fixed; its comments don't bode well for her future...
The Heartless: The Inky Mayor has the power to summon hoards of monstrous black Ink creatures, actually somewhat similar in appearance to the original Heartless.
Heroic BSOD: Jimmy, of all people, after he finds out that Heloise killed Mordecai.
Bass has somewhat of a minor one after tagging the wall through Berri. It would have been more serious if he hadn't forcibly pushed it aside for other priorities, but a full-blown one is certainly on the horizon.
Hidden Elf Village: One tries to run the Cathedral like this, ordering the other stitchpunks to stay inside and never use their communicators. It doesn't work.
Prior to this, Trevor managed to hurt Rigby by showing Phoenix a video of Rigby's revenge killing and damaging his friendship with the lawyer. Rigby eventually gets his revenge by broadcasting footage of what led up to Trevor's hoisting above.
Trevor is a magnet for these; Berri takes the first example and throws in a dash of Mad Science by pumping him full of paralytic and opening up his chest.
Just Between You and Me: After Rigby apologizes to the City at large for what he did to Trevor, Trevor contacts him to rub salt in the wound... then alludes to possibly cloning Yakko, as well as having his own revenge plans in the works.
Megatron's first act upon arrival is to kick Starscream around. Yet he deals even worse damage to Caroline, despite (or because?) her professed loyalty to the Decepticons.
Laser-Guided Amnesia: Averted. Characters remember everything about their respective canons, and their deaths, if they die.
Somewhat played straight after Heloise respawns after Rigby pushes her off a boat into the ocean to get eaten by Sea-Ink Monsters. She can't remember Jimmy's face, name, and most of the memories she had with him. Later it's revealed that it was The Mayor's Consort that took away those memories in an attempt to keep Heloise from relying too heavily on a Morality Chain. She after which returns them.
Locked Out of the Loop: The Mayor would really prefer keeping the residents in the dark about... Well, take your pick of secrets, really. One good way to set him off is to keep poking at the fourth wall, literally or metaphorically.
Masquerade: The Mayor is working desperately to uphold this in regards to Ink City's many secrets.
Zig-zagged by the P4 cast: Yosuke has been very open about his Persona and powers to certain people, but cagier around others. Souji, meanwhile, prefers to keep such things to himself, and is annoyed whenever confronted with evidence his teammates haven't been as careful.
For his first few months of being in the City, Dr. Norrington actively hid the fact he was an Elder God from most everyone. He finally revealed what he actually was publicly after needing to take Him down a peg.
Mean Character, Nice Actor: The muns playing the villains and evil characters are some of the nicest and most sociable people when they're not in character.
Mistreatment-Induced Betrayal: Caroline was pretty dedicated to helping the Decepticons until Megatron showed up. How he treated her resulted in her rethinking which side of the Cybertorian war she's on.
Mood-Swinger: The entire game switches from comedy and drama on a dime. For example, Logs #1 and #2 are rather light-hearted. Log #3 on the other hand...
In-universe, there's Johnny C. who goes from being friendly with Mordecai and Rigby to yelling at them all while planning on murdering them.
After World Split was over, the Mayor and Painted Lady went around fixing people who were still messed up by the event. One of these people was Bass, who repaid their efforts by... stealing something from them both with Get Ability. Considering World Split could have been caused by a similar event in the past and Bass being, well, Bass, this causes an Oh Crap moment on the part of the Mayor and the players.
Priscilla after discovering what Mr. House really looks like.
Trevor captures Aisling. Aisling gets her hands on Trevor's communciator long enough to get a message to the City, crying out for Optimus before being cut off. Optimus respondsaccordingly. When he announces his arrival with Bold Inflation, Trevor realizes the jig is up...
Ava barely looks over ten years old, but, as she admits to Souji, she's 408 years old.
Old Shame: A meta example. After Heloise left the city her mun quit playing her for an extended period of time, and after regaining the muse, became highly embarrassed over the original portrayal. Her player now considers the "Ink City incarnation" of Heloise to have been more along the lines of an AU, based on an extensive amount of headcanon at the time.
One-Hit Kill: What happened when Trevor pushed Bass too far and was on the receiving end of an Earthbreaker at point-blank range.
Total Party Kill: The second time, he leveled Trevor's entire compound, pretty much instantly decimating everybody inside. Including himself, naturally.
I Am Not Shazam: Prior to Kat's appearance, Berri was the only Mew in town and was referred to by her species name all around. After Kat's appearance and her own need to go incognito, she adopted an old nickname given to her by a former friend.
Pet the Dog: When Kat arrives and Trevor initially mistakes her for the Mew who subjected him to And I Must Scream, Berri immediately contacts him to clear things up, even going so far as to offer a chance for physical revenge. Trevor, having learned nothing from his ordeal, promptly pulls a Breaking Speech on her.
Playing Both Sides: Swindle, being a Con Artist, started trying this right away. However, the Decepticons and Autobots in Ink City are different than the ones he's used to which puts him over his head very swiftly.
Pronoun Trouble: Legion's status as a mobile platform for 1,183 Geth makes it difficult for other residents to know just how to address... him/her/it. (When Ichigo first notices how it refers to himself, she thinks it's using the Royal "We").
In a way, how Meredith addresses who she calls "The Creator"; the title refers to one person, but she refers to them as 'they' and 'them' when she's asked to describe 'them'.
Running Gag: All the stitchpunks react poorly to a single line on the Sign: "7) There is no number 7." Leads to a Brick Joke when the twins steal the Sign so they can remove that line and Seven shows up immediately.
Sapient Steed: Kat, being a Mew and able to shape-shift into Pokémon large enough to be ridden, has acted as one on several occasions.
Maya: Well, that's like saying 'How do I make this ice cream taste better without adding any chocolate'. Sure, I could use butterscotch, but who does that anymore? I guess what I'm trying to say is that you're butterscotch and now I want ice cream.
Optimus: Studies from the world wide web show that approximately 23% of the population still consider butterscotch a popular condiment.
Star-Crossed Lovers: Parodied when Knock Out discovers Jetstorm has Starscream's coding and assumes he's a forbidden sparkling between Starsceam and an Autobot.note Actually, he's a the result of the Autobots of his universe using Starsceam's coding to try and make jet-form Autobots.
Yakko, of course, puts his own spin on this when he helps Rigby take several levels in Toon Antics.
Took a Level in Jerkass: Phoenix turns out to be a mean drunk. Being stuck in the city for over a year (and losing Edgeworth) hasn't helped, either... to the point that he's begun lashing out at his non-human friends.
Translator Microbes: Rocket's communication device is able to translate his music speech into easier-to-understand English.
When Trevor captures Aisling and she calls Optimus Prime for help, he tries to be polite to Trevor at first. Faced with Trevor's denial and all evidence to the contrary, he continues to speak calmly even while slipping into this.
Voices Are Mental: A fairly literal example in Kat who, when speaking telepathically, will sound the same regardless of whatever form she's currently in. Played slightly more straight with her human form, as her speaking voice is also the same as her telepathic one.
What the Hell, Hero?: Berri thought she was protecting everyone by neutralizing Trevor, but her methods — and very public broadcast of the results — provoked this reaction from the City at large.
Yosuke manages to seriously anger Souji by repeatedly ignoring his desire to be careful. Signing him up as the main attraction of a 'Butler Fight' without bothering to ask his permission first was bad enough, but when he follows that up by making posters with their names and faces and plasters them all over town — again going against Souji's explict desire to keep a low profile — he calls him out on it.