Makoto: I'm Makoto Naegi and I'm a new student here at Hope's Peak Academy. I'm just your everyday teenager who was lucky enough to be invited to this prestigious school. I'm going to take this opportunity by the horns and bravely face every trial that comes my— * Smash Cut* Monokuma: Upupupu~ Makoto: D'AAAAAH—
Added Alliterative Appeal: Speaking of unmarked spoilers, there's Genocider Syo, Touko Fukawa's split personality and Super Duper High School Stabby McMurder, backing up Makoto's refutal when Byakuya said Fujisaki's murder is a textbook example of Syo's handiwork...
Syo: Byakuya, love, I do hate to piss on your porch like this, but that was a piss-poor approximation of my piercing presentations.
Naegi: Chihiro... made a fully functional artificial intelligence. We're just accepting this?
Book Ends: So far, the first four episodes in the series proper contained this trope.
Brainless Beauty: Junko. This is lampshaded heavily during her Meet The Students segment.
Greg: Junko Enoshima may be academically challenged and have all the personality of a dishcloth, but she is physically attractive and has appeared on magazine covers, so she still holds a place in society!
Brutal Honesty: When asked about Chihiro, Kirigiri promptly informs Alter Ego that "Oowada crushed their head."... Right after Naegi tells her to be tactful.
Butt Monkey: Yasuhiro Hagakure was dealt 'penalties' by Monokuma in Episode 3. Needless to say, that's one way to damage somebody's influence.
Captain Obvious Reveal: In-Universe: "11037," emphasized by Leon's helpful nametag. Lampshaded further after Monokuma confirms the verdict.
Naegi: Monokuma, it really was Kuwata, wasn't it?
Monokuma: Yahoo! Yeah, you bastards worked out who the totally-not-obvious killer was! Good going there, you frickin' geniuses!
Compressed Adaptation: Lampshaded in the investigation montage. Lampshaded again when Leon, trying to avoid execution, points out that they've skipped all of his backstory. Monokuma points out that nobody cares.
Episode 4 has been accused of being this, since it abridges both the episodes that make up Chapter 2 and cuts a lot more as a result.
Early-Bird Cameo: Hajime Hinata and Nagito Komaeda. When the latter appears in the character introduction video, Greg is less than pleased.
Komaeda: Did somebody say... hope?
Greg: What...? Komaeda, get lost. You're here way too early.
Komaeda: Oh, okay. I'll just be over here. Hoping.
Emotionless Girl: If one had to guess, they would say Kirigirinote Title: Super Duper High School Mystery Chick would be referred as such.
During "Meet The Students":
Monokuma:"Mention the fact that she's emotionless as crap!"
Even Evil Has Standards: In the Trigger Happy Havoc Trailer Parody Dub, Monokuma is horrified when the trailer goes about how "the Blackened will be punished" and quickly tries to remind everyone about how the game is not about ethnic cleansing.
After Kirigiri stated (in Motor Mouth fashion, no less) that Fujisaki is recognized as male, Monokuma held up a disclaimer stating that it's not fond of people being offended by fictional characters. It also mentioned to never talk about it again.
Exact Words: Monokuma fulfills his promise of bringing the survivors a picture of 'What Maizono looks like under those clothes'. Turns out, it's just Maizono fully dressed and located under her idol costume.
Naegi's thoughts on Chihiro Fujisaki in the first episode:
Naegi: At this moment, I was aware of how adorable this girl was and how me wanting to hit that was both totally acceptable and something I'd never regret.
Leon Kuwata seems surprised that just committing murder isn't good enough.
After Junko gets killed:
Monokuma: Upupoops, My finger slipped. Anyway, that one doesn't count. No trial for her... probably...
Barely noticeable, but during the trial Kirigiri preemptively shuts down everyone's arguments against Naegi in a way that's at least somewhat courteous. Even when she cuts off Ishimaru, she explains that whatever he was going to suggest is impossible. When Leon tries to interject however, she simply gives him a cold "Shut up."
When Naegi reminds everyone of the (assumed to be) naked Maizono pictures promised to killers, Leon promptly asks Monokuma when they're going to get them.
After the first culprit is discovered, Celes gleefully anticipates a weenie roast.
In the Meet the Student extra, the introduction of Celestia says "Celestia Ludenberg, if that is indeed her real name..."
Episode 3 has fully written out Maizono's message, complete with Gratuitous Japanese. Also, Maizono's photo at the end might need this treatment.
Episode 4 has Naegi's browsing history (in which he Googles pictures of Maizono with cup noodles on her head) and Togami's tumblr post. And in the trial, where Naegi counters Byakuya's statement, the Truth Bullet will read "Yeah Except No" before being fired.
The Friend Nobody Likes: Maizono is treated like The Scrappy by the whole cast except Naegi due to her weeaboo-ism and Faulerro enjoys taking potshots on her humorously. Both Greg and Hinata are disgusted with Komaeda and his hope obsession.
Funny Background Event: During Naegi's first encounter with Kirigiri, Asahina is faintly talking to Oogami about donuts.
Naegi:(reading his browsing history) Oh geez. I mean, this is pretty heavy stuff. But surely we're all united enough to endure this and—
(cut to Chihiro's corpse accompanied by Despair Pollution Noise Music)
Naegi:(collapses, twitching) Goddamnit.
In Episode 5, after accidentally creating Ishida, Kirigiri tells Alter Ego not to talk to anyone else. Alter Ego agrees. Cut to Yamada begging Naegi for help after he "mistook Alter Ego for an advanced porn game."
Gratuitous Japanese: Courtesy of the Super Duper High School B-List Celebrity herself, Sayaka Maizono.
Greg: She speaks fluent weeaboo, even though she is already Japanese. Try not to think about it too hard.
Naegi gets in on the act when he tries "thinking like Maizono," culminating in:
Naegi: Nani?! Sore wa chigau yo! (fires evidence bullet)
Leon: Ow...! What did you say?
Naegi: Oh, I mean "you've got that wrong."
Monokuma gets in on the act from time to time. He pronounces "extreme" as "ekkusturiimu". That, and in Episode 4...
Monokuma: Oshioki time, yo!
Yamada starts using it in earnest after meeting his "waifu" Alter Ego, who had it hard-coded by Chihiro.
Ishimaru complains that Oowada can't control his Indoor Voice, while he...
Oowada, meanwhile, calls Ishimaru's debate fetish "weird" while he himself's a member of Furry Fandom.
Fukawa expresses hatred for "cis white male scum" but retains her canonical crush on Togami, who is not only male and presumably cis but one of the most likely characters to be even a little bit white.
Monokuma: There ain't nothing like a Rotoscoped execution, I tell ya!
During the investigation montage in the fourth episode:
Togami: Go on, throw some evidence at the screen with no real explanation.
Naegi: "Screen"? Togami, are you okay?
Les Yay: As Kirigiri points out, Monokuma offered everyone the same incentive of, what was assumed to be at the time, naked Maizono pictures. invoked
Monokuma: Don't act like you're not curious!
Kirigiri: You're more perceptive than you look.
Not only that, Maizono herself assumed the compromising pictures were of a drunken tryst with the rest of the Kawaii Choir. In court, after revealing the note inviting someone for a "sugoi booty-call":
Asahina: Based on what the letter said, doesn't that mean the killer has to be a guy?
Maizono: We got really down and dirty. We were lezzing it up!
At the end of the first episode, Naegi asks for a Super Duper High School title that everyone else has. The first one given was "Super Duper High School Good Luck", which is his canon reason for getting in. He then points out that it's "stupid and clearly inaccurate". The "Super Duper High School [X]" naming scheme itself comes from the Zetsubou translation patch.
Leon's Villainous Breakdown of shouting "Asshole" degrades to just "aho", which he repeatedly screamed in the anime and game. Also, while trying to shout his way out of things he calls Maizono "retarded," which is the translation of "aho" in the Let's Play on Something Awful.
In Episode 4's Stinger, Genocider discusses her nickname and mentions that, while the Internet came up with Genocide Jack, no one ever asked her what she would like to be called and says she would rather be named Jane. Genocide Jack is the name the official translation uses and in that version she did tell the cast what her preferred name was, though there she said it was Genocide Jill.
Also from episode 4 (albeit probably by accident from Faulerro's part), Naegi uses a "Truth Bullet" to agree with another's statement, instead of disproving it. The mechanic was implemented in the second game.
Even more obscure is Yamada's line about wanting to unlock a maid café, since in Dangan Ronpa Zero there was one of those in Hope's Peak Academy... A Monokuma maid café to be precise.
Ishimaru has brass balls "forged in the line of duty as hall monitor," which is his title in the Something Awful Let's Play.
The Nicknamer: Monokuma has a penchant for calling the students by certain nicknames, such as Hoodie (Naegi), Goatee/Pincushion (Leon), and Freckles (Junko). The rest of the students' nicknames (aside from Maizono and Fukawa) can be found here.
Genocider Syo has shades of this too, such as calling Naegi "Nagles" and "Nigel".
Noodle Incident: According to Faulerro, though it didn't come up in the episode Oowada still caused his older brother's death... with yiffing.
Obviously Evil: They made Celestia Ludenberg even more of this trope than the original, by not only giving her the title "Super Duper High School Hellspawn", but occasionally interjecting her dialogues with her deep Satanic voice of 'monologue'.
Naegi: "I can't believe we just lost all the cute girls."
Kirigiri: "What was that?"
Ooh, Me Accent's Slipping: Episode 5 features Monokuma sounding very much like Naegi (both voiced by Faulerro), but lampshaded and Monokuma switches to his own voice again, claiming that "the voicechip was on the fritz".
Episode 5, Celestia slips into a rather southern accent for one sentence. It's lampshaded.
Painting the Medium: When Asahina interrupts Leon's introduction, she headbutts his Super Duper High School subtitle out of the way.
Political Correctness Gone Mad: Also known as Super Duper High School Shut-In, Touko Fukawa runs a Social Justice blog and is convinced Naegi is the killer in the first trial because he's "cis white male scum," despite being Japanese.
Oowada: FUCK YOU, TEDDY! *throws the Monokuma bomb away*
Kirigiri:(typing) Cut that weeb shit out, please.
Raging Stiffie: Naegi gets one when he realizes Maizono must be in the shower. It doesn't last very long.
Right for the Wrong Reasons: After Maizono is murdered, during the trial Fukawa angrily remarks that only a male would be capable of something as terrible as murder, and obviously her reasons are wrong because she hates "cis white male scum". The culprit does turn out to be male, though.
Rousing Speech: Naegi attempts one after the death of Enoshima. But it was abruptly ended and the effects were reversed when Hagakure revealed that Maizono died in Naegi's room.
Monokuma: Hey, welcome to "who's Maizono's killer?"; the trial where everybody's a defendant, and your feelings don't matter!
According to Faulerro, his voice for Hinata is based on John Mulaney, due to watching some memetic sprite videos.
There have been multiple shout-outs to Phoenix Wright: Ace Attorney, such as Hagakure shouting "Objection!" in the first classroom trial and the music playing during Kirigiri's explanation of where Chihiro's murder took place.
Judging from his Motive Rant, Leon is more upset that Maizono turned him down (and called him a weenie) than that she tried to kill him.
When it starts to look like Togami killed Fujisaki, Celes is mainly disappointed that his frame job of Genocider Syo was so sloppy.
Surfer Dude: Downplayed. Kuwata uses quite a bit of Surfer Dude slangs (like "Yo, Mono-dude!" and using "Dude" quite a bit), but not to the extreme. Plus he's a baseball star, not a surfer.
Suspiciously Specific Denial: Chihiro Fujisaki is the "Super Duper High School Totally-A-Chick." Possibly subverted; Greg refuses to commit to calling Chihiro by either gender in order to avoid the wrath of Tumblr.
Sweet on Polly Oliver: Gender-inverted. When it comes to Chihiro, Naegi would totally hit that... but see above.
Hinata is sure his own game's anime will be in no way a condensed rush job like the other one.
At the beginning of the fifth episode, Monokuma briefly uses a voice similar to the Trigger Happy Havoc dub, much to the disgust of the students.
Take That, Audience!: Hinata points out that those who know him from his game did so from various Let's Plays of it, since he's fairly certain they don't know Japanese.
Tempting Fate: Hagakure. Lampshaded. Those who have watched the anime or played the game would know that it won't stick, although amusingly enough, Hagakure was the first victim in the game's demo, instead of Maizono.
Hagakure: Wait, why do we have to do the work? I mean, can't you just snuff out the least interesting people yourself?
Kirigiri: It adds up perfectly. Sayaka Maizono chose the most vulnerable person she could as a target for murder: a professional athlete who was several times stronger than her.
Leon:Dude! What total BS! That logic is hella whack!
Leon isn't much better, as Naegi points out that he didn't notice Sayaka writing his name in her own blood, or that a piece of his shirt fell out of the incinerator.
Took a Level in Badass: It's subtle, but Naegi starts standing up to the others almost immediately after Maizono dies. When it comes time to prove Kuwata killed her, he gets noticeably more confident, as well as angrier and snarkier.
Plus, even when Naegi reluctantly agreed to be Togami's assistant for the investigation of Chihiro's murder, he snarks the hell out of him and casually tells him to shut up during the trail when Togami tries to deny visiting murder mystery porn sites.
Trademark Favorite Food: Asahina has quite an obsession with donuts, so much that it's rumored that she literally can't live without them. Her title isn't "Super Duper High School Donut Nut" for nothing.
Asahina: Hiii! I'm Aoi Asahina! I like sports, and donuts, and... that's it!
And she'd only say about things that sounds like or might be similar with donuts, like 'doorknobs' or when Togami just said 'done it'...
Bitch, what did you say about donuts?
Unholy Matrimony: Byakuya and Celestia seem to be shaping up to become this, if their dialogue between one another and their distinct pleasure at watching the others' in pain, as well as their executions, is anything to go off of. Even Naegi lampshades it.
You guys keep agreeing about horrifying things and relishing everybody else's misery! ... Seriously, when's the wedding?
Valley Girl: Junko, being a Super Duper High School Airhead, talks like this.
Your Answer to Everything: After assuring the students that hitting the iron walls a bunch will solve their problems, Mondo Oowada (His title's Super Duper High School Needless Violence, by the way) preemptively declared this trope applied on him. Plus, Leon agrees with him.
Oowada: I'm sure if I hit 'em a bunch it'll solve our problems and yes, that is my answer to everything!
Leon: I was gonna say!
Turns up again during the first trial. Naturally, Leon is involved.
Naegi: He then disposed of the evidence the only way he knew how: throwing a round object at something.