Engineered Public Confessions in Anime and Manga.
- Buso Renkin: During the assault on the protagonists' high school at the climax of the L.X.E. arc, one of the students was collaborating with the attacking homunculi and used the intercom to convince the other students that the heroes fighting against the monsters were also enemies so that the students would attack them. When the hero's friends call the student over the intercom they get him to reveal information that only the attackers would know, proving that he was working with them.
- One memorable episode of Case Closed had Conan cornering the killer-of-the-week in a parking lot and spouting off the details of the crime. The killer is at first taken aback at being found out, but calmly confesses to the murder when he realizes the police would never believe anything a little kid like Conan says. Conan admits this to be true — which is why he taped the whole conversation.
- In Code Geass R2, Lelouch pulls a massive Gambit Roulette just to get one of these, all in order to secure China as an ally in the fight against The Empire.
- This is largely how Near manages to expose Light as Kira in Death Note, sans the tech equipment but Light's God complex is more than enough.
- Fullmetal Alchemist: At the very start of the series, when Edward and Alphonse are battling the fake priest Cornello, Edward is trapped but has a huge microphone hidden as Cornello explains how he is manipulating the populace and so on. Too bad it's rendered moot by the Homunculi.
- A non-villainous (sorta-kinda) happened in Get Backers. Makubex finally explains that stealing the implosion lens wasn't just a plot to ransom the gods of Mugenjou and return things to how they before Ginji left; it was all prophesied in the Archive, and he was just doing his best to play his part and see if he could find a way to break the gods' control. He even revealed that his public persona as the "demon king" was largely a product of his virtual reality systems. Ren runs in after he finishes talking, reveals that she used his computer to broadcast it all over Lower Town and that they're all waiting outside, cheering wildly and yelling things like "Long live Makubex!"
- Great Teacher Onizuka: Kikuchi plays a recording of Anko and her friends talking about bullying Noboru through the PA system to show the school what really happened.
- Done in the last episode of Gunsmith Cats when Haints finds Radinov in his office and launches into a rant about her failures, only to discover that she's really Kate with a wig and a microphone.
- .hack//Roots: The player Tohta lure a group of merchants who are driving up prices into a dungeon and tricks them into admitting they're Real Money Traders, which violates the World's terms of services. The merchants do this in a public channel and Tohta reports them, resulting in all of their accounts being banned.
- Infinite Ryvius: Captain Airs Blue at one point considers betraying and abandoning the crew of the Ryvius, unaware that a treacherous subordinate has turned on the ship's intercom. Needless to say, he isn't Captain for much longer.
- Subverted in Kakegurui: Yumeko records Idol Singer Yumemi making disparaging remarks about her fan club, and plays the tape for all of them to hear after defeating Yumemi in the following episode. Yumemi braces herself for a loud chorus of boos and Produce Pelting, but her fan club is so moved by her "honesty" that they vow to continue supporting her, and even demand an encore performance right there on stage.
- This happens twice in Martian Successor Nadesico, transmitting some things Nergal would rather have remained hidden to the entire ship. The second time, in fact, Mr. Prospector seems to have some sort of "reveal bad guys' secret" button (designed to look like Ruri's face for some reason) on his shirt that he casually brushes as their captor gets rolling.
- Metal Armor Dragonar: Big Bad Dorchenov reveals he is the murderer of Marshall Guiltorre thanks to Min's strategy.
- One Piece had one during the Enies Lobby arc where Spandam, after accidentally activating the Buster Call, is gloating to Nico Robin about his future plans and how all the Marines under him are sheep. The kicker to this is that HE was the one who left the radio on for all to hear. Then he weakly tries to cover it up by trying to imitate Luffy when he finally notices this. No one is fooled, of course. This is an odd case, though, in that Spandam's speech serves no purpose to the plot, except perhaps to make the readers (or watchers) dislike him even more; when the transmission is finally cut, the only thing that matters to the ones who heard it is that the Buster Call is coming.
- In Ouran High School Host Club, the school's newspaper editor tries to engineer the downfall of the Host Club, only to have his plans thwarted by a recording machine disguised as a first aid kit which Kyouya placed into the newspaper room.
- Patlabor 2: The Movie: One of the people behind the terrorist attacks, Shigeki Arakawa, refuses to confess anything. Shigeki Arakawa is also Affably Evil. He went to Kiichi Goto when Yukihito Tsuge decided to alter the plan and start a limited war that would topple the Japanese government. Shigeki Arakawa’s original plan was a harsh political protest that used limited and controlled violence. Goto also agrees with Arakawa’s observations on the reality of peace, war, and political leaders exploit chaos instead of using a measured response.
- Peach Girl evil mastermind Sae is tricked by Kairi into expounding on her patented Wounded Gazelle Gambit routine, and how she has repeatedly made Momo look like a monster before the class. Unknown to her Touji is right around the corner, and hearing her bragging finally wakes him up, and he, in turn, makes damn sure the class knows who and what Sae really is. The worst part was, they kind of already did, but admitted falling for an act they themselves had been victimized by before—and sadly, would again before all was done.
- Pokémon: Zoroark: Master of Illusions has Grings Kodai's plan curving for a meteoric downward spiral after Zorua nicked his forearm. This had the side effect of breaking his illusion canceller, but he was too absorbed in both his own ego - as he gloats to Ash about his Dark Secret - and Zoroark's illusion to tell the difference as he drew power from a fake Time Ripple projected a few feet closer to Kodai than the real one, allowing Ash's friends to record his gloating on video. Then time rewinds in front of him, revealing the truth; he loses full functionality for his device shortly thereafter frying Zoroark, who fries it back, and stumbles into another illusion, whereupon he falls unconscious after falling off a podium in the Boccer arena, believing the railing for his "airship" was a few feet further ahead. This trope kicks in the next morning, where he wakes up to hear the aforementioned gloating broadcast to everyone in Crown City via his own TV network. That roar from Zoroark? A rough translation is "enjoy your ride on the Party Van, asshole!"
- Ramen Fighter Miki: Miki tries this in episode 7A Peel Off the Fake Smile when she becomes a client of Megumi’s bakery and acts like The Thing That Would Not Leave to make Megumi drop his façade of The Fake Cutie in front of her clients denouncing her as the Bitch in Sheep's Clothing.
- Sket Dance plays this completely straight when a teacher caught framing a pupil for his own misdeeds confesses all with the immortal lines: 'No matter what you say, nobody will believe you!' Unfortunately for him, he was being broadcast over the school intercom system at that very moment, and the Sket-dan had fiddled with their classroom's speaker so that he wouldn't notice it.
- In Tiger & Bunny, Agnes and her crew combine this with Hoist by His Own Petard when they expose Maverick by broadcasting his monologue live on Hero TV, a program of his own media company which he was using up to that point to further his schemes.
- In Yu-Gi-Oh! 5Ds, during his fight with Yusei, Divine reveals that he was the one who murdered Misty's brother (Misty was under the impression that Aki had, and had become a Dark Signer to seek revenge - acquiring the use of Jibakushin (Earthbound God/Immortal) Ccarayhua). He discovers too late that Yusei's Duel Disk had a microphone in it, which he had activated beforehand, and becomes Ccarayhua's dinner. Though it certainly doesn't help that when Misty angrily speaks to him a few moments after Yusei reveals his trick, he responds with Evil Gloating.
