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This article contains shocking and offensive content. Read at your own discretion.
Note that these can vary to tame to extreme depending on the person.
Outline
The contents of this includes sites, images, videos, ect. of erotic (sexual), gory (R-18G), ghost stories, phobics, surprises, etc.
However, some of them may cause damage to your PC, such as browser crashes caused by PC viruses or web scripts. Therefore, unless you have sufficient immunity, tolerance, and knowledge of personal information leakage and security, you should not search for them out of curiosity (you may need to search for them for academic or research purposes, but even in that case, you need immunity).
If an image, video, or exe (a PC executable file) is hit, the viewer will suffer some kind of damage. Genres include PC damage, grotesque, horror, occult, denpa, insanity, depression, ect. In 2014, TBS aired a one-off TV program which examined search terms and urban legends.
Aside
In recent years, videos of people searching for words they shouldn't search for have become popular on video sharing sites. There are many different types of live search videos, so if you're curious about search terms, you can watch along.
Currently, the highest danger level is 7, but at one time there were even danger levels up to 8. The description was "may be life threatening" in bold red letters with a black background. Wiki archives from that time do exist.
Currently, the number of words registered in the Wiki is over 2100.
List
In this article, only items for which pixiv articles exist or going to (even if they are not included in the Must not Search wiki) are listed.
The contributors, administrators, and authors of this article are not responsible for any unpleasant feelings you may experience as a result of searching.
About Genres
| Hall of Fame (殿堂入り) | Particularly well known in the Japanese language. |
|---|---|
| PC Damage (PC被害) | Items that cause damage to computers. |
| Grotesque (グロ, guro for short) | Violence and cruel descriptions and expressions, etc. |
| Insanity | An act that goes against common sense. |
| Sexual | Items that fall under the category of adult content. |
| Surprise (ビックリ) | Scary images, malicious prank videos, etc. |
| Occult/Suspense | Mystical or supernatural phenomena. Suspense being there as a sense of danger. |
| Denpa (電波) | Literally means "electromagnetic wave". Something that is totally out of touch with the sensibilities of ordinary people. |
| Reality (真実) | An incident or event that actually happened. |
| Disease/Deformity | Unusual appearance. |
| Unusual Organism | Creatures or other beings with unusual characteristics or abilities (fictional creatures are also included here). |
| Joke/Neta (ジョーク・ネタ) | Basically, anything that can be laughed off. Neta being a Japanese slang of this. |
| Mystery (謎) | Something whose intent or identity is unclear, mysterious, or whose meaning is not well understood. |
| Psyche/Flashing | Content with heavy flashing, loud colors and music. |
| Phobic (フォビック) | For extreme or irrational fear of or aversion to something. |
| Horror (ホラー) | Descriptions that stir up fear. |
| Depression (鬱) | Tragic content. |
| Filth | The wiki classifies this as excrement or discharge from the body. |
List
| Title | Japanese | Genre | Description | Danger Level |
|---|---|---|---|---|
| # | ||||
| 8teacups.exe | Psyche/Flashing, Denpa, Surprise, Mystery, PC damage | A chaotic, flashing and unintelligible video that is loud at the start. | 4 | |
| A | ||||
| Acorn Woodpecker | ドングリキツツキ | Unusual Organism, Grotesque | A bird that can effect people with trypophobia due to them making many holes. | 2 |
| Acrotomophilia | アクロトモフィリア | Grotesque, Disease/Deformity | The fetish of amputees. | Not Found |
| Ai to Yuuki to Kashiwamochi | Depression, Horror | Puzzle game in the style of Yoshi's Cookie. | 2 | |
| Aiseikai Hospital | 愛生会病院 | Denpa, Joke/Neta, Hall of Fame | Site of a hospital that once existed. Its flashy colors and design became popular on 2ch, and even a flash parody was created. | 1 |
| Akihabara Tape | Occult/Suspense, Mystery | A mysterious song on a used cassette tape that someone bought in Akihabara. | 1 | |
| Alzheimer's Painter | Horror, Reality,Depression | Self-portrait painted by a painter affected by Alzheimer's disease. | 2 | |
| Amblypygi | Unusual Organism, Phobic | Spider, some have been sold as pets. | 2 | |
| Anago-san | Joke/Neta, Hall of Fame | More specifically a site that collects voices of the Sazae-san character Anago-san. | 1 | |
| Andrei Chikatilo | Grotesque, Reality | Serial killer from the former Soviet Union (now Ukraine). | 2 | |
| B | ||||
| Endless Summer Holidays | Sexual, Depression, Grotesque | A novel in which a girl is kidnapped, confined, and tortured continuously. | 4 | |
| Blue Blanket Butcher | Occult/Suspense, Reality, Mystery | Creepy murder case. | 2 | |
| Blue Devil | 蒼い悪魔 | Grotesque, Joke/Neta | Series of cruel Doraemon videos made in 3D Movie Maker (see here). | 2 |
| Brazen Bull | Reality | Cruel method of execution said to have originated in ancient Greece. | 2 | |
| C | ||||
| Candiru | Unusual Organism | Catfish from the Amazon. Frankly, more dangerous than a piranha. | 1 | |
| Carro Groce | Grotesque, Sexual, Reality, Hall of Fame | Japanese shock site that compiles erotic and grotesque videos. | 6 | |
| Caterpillar | コオイムシ | Unusual Organism, Phobic | The male has a habit of carrying and protecting its eggs, but that's the gross part. | 2 |
| Cat Soup | ねこぢる | Denpa, Grotesque | Cruel but award-winning anime. This can also mean the manga it was based off of (see Nekojiru). | 1 |
| Chaos Sudden Death | カオスサドンデス | Joke/Neta | In Mugen this happens in the intro after the second round of Dark Donald, a scary/joke image is displayed on all screens and even screams are played at the same time (see here). | |
| Chargeman Ken! | チャージマン研! | Insanity, Joke/Neta | A crazy anime that has a lot of things going for it. | 1 |
| Cochineal Extract | コチニール色素 | Reality, Phobic | Pigment made from a certain insect. | 2 |
| Cockroach | ゴキブリ | Unusual Organism | Hated by mankind. | Not Found |
| Cow's Head | Horror | Urban legend about if you listen to it, you will die within three days. | 1 | |
| Creepypasta | クリーピーパスタ | Grotesque, Horror, Occult/Suspense, Surprise | Western internet urban legends. | 3 |
| D | ||||
| Darwin Awards | ダーウィン賞 | Joke/Neta, Insanity, Reality | A tongue-in-cheek honor for people who died in a "idiotic (unusual) manner". | 1 |
| Delete Immediately | Horror, Occult/Suspense | Fake special screen of Japanese text covering the screen with the aforementioned title in Shin Megami Tensei II. | 2 | |
| Demodex Folliculorum | Reality, Unusual Organism, Phobic | Microscopic mite that can only survive on the skin of humans. | 2 | |
| Depleted Uranium Ammunition | Disease/Deformity, Reality, Hall of Fame | Images of deformed children born due to radiation hit. | 3 | |
| Doki Doki Literature Club! | ドキドキ文芸部! | Depression, Surprise, Horror, Grotesque, Filth | What seems like a dating simulator is really a fourth wall breaking psychological horror game. | 3 |
| Don't Look for Wally | Surprise, Horror | A screamer flash game of Where's Wally (Waldo in North America). | 3 | |
| Doraemon the Horror | 銅鑼衛門 | Horror, Grotesque | Horror parody of Doraemon by Hideshi Hino. | 2 |
| E | ||||
| Ed Gein | エド・ゲイン | Grotesque, Reality, Insanity, Horror | A murderer who was crafted with dead bodies. | 4 |
| Ego Ego Atakushi | エゴエゴアタクシ | Hall of Fame | Taiko no Tatsujin song | Not Found |
| Eien to Natta Rusuban: Papa wa Kaeranai | Depression | 18+ game where a girl is subjected to severe humiliation and torture. Used copies are sold for a high price. | 2 | |
| Eight Feet Tall | 八尺様 | Horror | Japanese urban legend of a tall woman named Hasshaku-sama who abducts children. | 1 |
| Eihort | Grotesque | One of the Great Old Ones in Cthulhu mythology. Looks like a hydnellum peckii. | 2 | |
| Elfen Lied | エルフェンリート | Grotesque, Depression | Anime and manga with full of beheadings and dismemberment. | 3 |
| Elite Salt | エリート塩 | Joke/Neta, Hall of Fame, Insanity | Salted daifuku made with sweat. This was done on Downtown no Gaki no Tsukai ya Arahende!! with the members not knowing they ate sweat of a elite member. | Not Found |
| Elsagate | エルサゲート | Sexual, Reality, Filth | Social issue on YouTube and Youube Kids. | 3 |
| Eudocima Tyrannus | アケビコノハ | Unusual Organism, Phobic, Horror | While not as scary, it's their larvae that is seen as creepy. | 1 |
| F | ||||
| Faithful Reproduction of a Dream I had Today | 今日見た夢を忠実に再現 | Joke/Neta, Horror | Mysterious text to speech version of Ievan Polkka with visuals of the 1927 Metropolis Maria's dance scene sped up. | 1 |
| Female Sage | 女賢者 | Horror | Character from Dragon Quest 3 but looking up the word in Japanese also shows up a scary face of a woman. | 3 |
| Futomaki | 恵方巻き | Horror, Hall of Fame, Surprise | More specifically a Niconico video with a thumbnail of Yui Hirasawa but really is a unrelated horror video. | 3 |
| G | ||||
| Giygas | ギーグ | Horror, Psyche/Flashing | Antagonist of the MOTHER (Earthbound) series. In MOTHER 2 there's a theory that they have a outline of a baby. | 2 |
| Gloomy Sunday | 暗い日曜日 | Depression, Occult/Suspense | A song said to make people commit suicide when listened. | 2 |
| Goggle | goggle | PC Damage, Hall of Fame | Fake Google site. Just accessing the site will infect you with a virus. It is now extinct. | 5 |
| Gomenne Gomenne | ごめんねごめんね | Grotesque | Vocaloid song about cannibalism. | Not Found |
| Goodbye Dolphin Dreams | イルカの夢でさようなら | Grotesque, Denpa, Psyche/Flashing, Hall of Fame | Horror site created by ATOLS as a joke for learning HTML. "Please go ahead after killing me!". | 3 |
| H | ||||
| Hakkouda Snowy March | 八甲田雪中行軍 | Grotesque, Depression, Reality | Large-scale distress incident that occurred in Japan in January 1902. | 3 |
| Happy Tree Friends | Grotesque | Very violent web cartoon by Mondo Media. | 3 | |
| Hong Kong 97 | 香港97 | Grotesque, Insanity, Hall of Fame | Infamous unlicensed game by Kowloon Kurosawa. Contains a image of a dead person. | 3 |
| Hydnellum Peckii | Hydnellum_peckii | Unusual Organism, Phobic | A mushroom that looks like it's bleeding all over. | 2 |
| I | ||||
| I can't be a bride anymore | Phobic, Hall of Fame | An eerie painting in red and black depicting a woman with an unusually long neck staring at you by Yuuko Tatsushima. | 3 | |
| I'm a Champion | アイム・ア・チャンピオン | Denpa | Creepy commercial form the 1970s (see here). | 1 |
| Iceman | アイスマン | Grotesque, Occult/Suspense | Known as Ötzi the Iceman, seen as a cursed mummy along with Tutankhamun. | 1 |
| Ikigusare | Disease/Deformity | Fictitious deformed idol group. | 2 | |
| Imeken | イメケン | Grotesque, Horror | Stands for image (イメージ) search (the ken (ケン) part coming from kensaku (検索)). In other words, it means traumatizing image search. | 3 |
| J | ||||
| Jellied Eels | Reality | Known as the world's most disgusting dish originated in England. Traditional dish eaten in the East End of London. | 1 | |
| John Wayne Gacy | ジョン・ウェイン・ゲイシー | Occult/Suspense, Reality, Insanity | Serial killer who enjoyed dressing up as a clown. | 2 |
| K | ||||
| Kiviak | Grotesque, Reality | Traditional wintertime Inuit food from Greenland. | 3 | |
| Kotoribako | コトリバコ | Occult/Suspense | A box that is said to curse a person's entire family to death. | 2 |
| Kunekune | くねくね | Occult/Suspense, Hall of Fame | Japanese internet urban legend called Wriggling Body in English. | 2 |
| Kure Kure Takora | クレクレタコラ | Insanity, Joke/Neta | Tokusatsu kids' show with episode 220 never being rebroadcast. The contents was seen as verbally abusive towards the mentally ill with the character getting the abuse going on a violent rampage. | 1 |
| Kurutta Kajitsu | 狂った果実 | Grotesque, Depression | A romance adventure game known for it's tragic scenes. | 3 |
| Kuso Miso Technique | くそみそテクニック | Sexual, Joke/Neta, Hall of Fame | Gay manga that is very popular within Japanese internet culture. | 1 |
| Kusozu | Grotesque | 9 stages of a woman's decay. Often depicts women such as a Empress to show "No matter how beautiful a woman is they will end up being ugly in the end.". | 2 | |
| L | ||||
| La Morena Kumonai | ラ・モレーナ・クモナイ | Mystery | Namco original song sung in an unknown language. | Not Found |
| Lamprey | ヤツメウナギ | Unusual Organism | Jawless eel with a with grotesque mouth. | 2 |
| Leucochloridium | Unusual Organism, Phobic | Parasites that use snails as hosts. | 3 | |
| Linda³ | Grotesque | One of the few games given a 18+ rating on PC Engine. | 2 | |
| Little Baby's Ice Cream | Horror, Denpa | Ice cream company known for the 2012 commercial, "This is a Special Time". | 1 | |
| LiveLeak | ライブリーク | Grotesque, Hall of Fame | A now closed video site that was best known for its shock and gore videos | 5 |
| Lobotomy | ロボトミー | Reality | World's most dangerous surgery. | 1 |
| Louis XVII | ルイ17世 | Depression, Insanity, Reality | A king of France who lived a tragic life. | 2 |
| Lover Boy | LOVER_BOY | Retro game with a nude male protagonist. Recalled and disposed of as subject to regulations. | Not Found | |
| LSD: Dream Emulator | LSD(ゲーム) | Psyche/Flashing, Denpa | From the artist Osamu Sato, it's a bizarre psychedelic game that does not call itself a game. | 2 |
| M | ||||
| Madtaro | 狂気太郎 | Grotesque, Horror | A site for atrocity-related internet novels. | 2 |
| Make Me Cute | かわいくさせて | Horror, Phobic, Surprise, Mystery, Joke/Neta, Hall of Fame | A scary edited image of a doll that 2channel were made to make it cute. On the English side of the internet it is best known the Ahenobarbus Henocied Facebook controversy. | |
| Marimo-chan Bye Bye | Grotesque, Depression | Image of Jinguuji Marimo in Muv-Luv Alternative with a exposed crushed head. | 4 | |
| Matsuyama Doctor Harassment | Horror, Sexual, Grotesque, Phobic, Psyche/Flashing, Denpa, Insane, Hall of Fame | A harassment movement on Matsuyama Kyowa Hospita of shock sites disguised as review sites about the affiliated doctors. | 6 | |
| Me!Me!Me! | ME!ME!ME! | Grotesque, Sexual | Erotic, gory music video for Japan Animator Expo. | 3 |
| Mike the Headless Chicken | 首なし鶏マイク / 鶏マイク | Grotesque, Reality, Hall of Fame | A chicken who lived for 18 months after his head was cut off. | 1 |
| Momoiro Usagi | ももいろうさぎ | Horror, Denpa, Surprise | An original song by Healing-P for Kagamine Len. | 2 |
| Mopemope | Horror, Hall of Fame, Phobic, Surprise | Controversial music video almost falling into Elsagate territory by being heartwarming at first glance. | 2 | |
| Mortal Kombat | モータルコンバット | Grotesque | A brutal fighting game known for it's gory fatality animations. In a more scarier note this had effected the mental toll of the animators due to the references they used. | 4 |
| My Neighbor Torotoro | Horror, Grotesque, Jokes/Neta, Hall of Fame | Infamous image of Totoro with corpses in his mouth. Finding the original artist seems fruitful...most likely not as popular to be searched for compare to the Jeff the Killer image. | 2 | |
| N | ||||
| Nagoya Host Club 2001 | Insanity, Depression | A crime where male brothel owner and a female witness was shot. | 3 | |
| Narutaru | なるたる | Grotesque, Sexual, Depression | Known as Shadow Star internationally. This work is characterized by many extreme scenes. | 3 |
| Natsumi Step! | なつみSTEP! | Horror, Occult/Suspense, Hall of Fame | Horror web anime made in flash. Takehara Minoru most popular work, even been seen by quite a few people in the west. | 1 |
| Needlefish | Unusual Organism, Grotesque | A fish that can jump out of the sea and kill people. | 3 | |
| Nishikigao | Horror, Jokes/Neta, Phobic | Game glitch where a character's face becomes distorted. | 1 | |
| Noroi-chan | ノロイちゃん | Horror, Joke/Neta, Surprise | A character from Shakin! (see here). | 1 |
| Nugumu | ンヌグム | Horror, Surprise, Mystery, Hall of Fame | A self-proclaimed Virtual Youtuber. | 2 |
| O | ||||
| Ochonan-san | おちょなんさん | Horror | Something from Fuan no Tane. | Not Found |
| Ogiwara Crazy | Horror, Surprise | The ending of Crazy Pierrot is screamer image said to be the game creator Yoshiaki Ogiwara. | 3 | |
| Omoikkiri DON! Broadcast Accident | おもいッきりDON!放送事故 | Horror | Eerie broadcast accident of unknown cause. | 2 |
| Otomushi o Tsukamaero! | 音虫をつかまえろ! | Joke/Neta Horror | Taiko no Tatsujin song. | Not Found |
| P | ||||
| panapp Face | Horror, Joke/Neta | An ice cream that, depending on how you eat it, can create a creepy face. | 1 | |
| Pennywise | Horror, Joke/Neta | Clown character from the movie IT | 1 | |
| Pingu 24th Episode | Horror, Denpa, Joke/Neta | An episode seen so horrific that it has been banned in some countries. | 1 | |
| Pipa Pipa | Unusual Organism, Phobic | A frog that can trigger people with trypophobia. | 3 | |
| Popee the Performer | ポピーザぱフォーマー | Grotesque, Joke/Neta | CG' kids anime known for it's over the top violence. | 2 |
| Pony Island | PonyIsland | Horror, Denpa | What starts as a cute game becomes unsettling. | 2 |
| Q | ||||
| R | ||||
| Red Room | 赤い部屋 | Horror, Hall of Fame | A popular flash animation in Japan. | 2 |
| Roadkill | Grotesque, Reality | Animals killed by car. | 3 | |
| Rosalia Lombardo | ロザリア・ロンバルド | Reality, Depression | Known as the most beautiful mummy in the world. | 1 |
| Running Cirno | Psyche/Flashing, Hall of Fame, Horror, Jokes/Neta, Denpa | A video made in MMD of a creepy running animation of Cirno. | 2 | |
| S | ||||
| Sada Abe Incident | 阿部定事件 | Grotesque, Reality, Insanity | Japanese geisha and prostitute who murdered her lover during the Showa Era. | 2 |
| Saikin Osen | 細菌汚染 | Horror, Phobic | Another Vocaloid song with many dark theories. | 2 |
| Sampoong Department Store | Insanity, Reality | Deadliest modern building collapse until the collapse of the World Trade Center. | 2 | |
| Satoru-kun | Occult/Suspense | Japanese urban legend of getting any answer from a public phone. | 1 | |
| Saturn Devouring His Son | Grotesque, Joke/Neta | There is actually two paintings of this, the more popular one is by Francisco Goya. | 3 | |
| Sawney Bean | ソニー・ビーン | Grotesque, Insanity, Reality | Said to be the head of a cannibal clan. | 1 |
| Sayonara wo Oshiete | さよならを教えて | Grotesque, Sexual, Depression | An erotic and grotesque visual novel by CRAFTWORK with a bad aftertaste. | 2 |
| SCP | Grotesque, Horror, Depression | A site that collects fictional monsters. | 1 | |
| Sennichi Department Store | Reality, Occult/Suspense | Japanese department store that went in flames. | 2 | |
| Shojo Tsubaki | 少女椿 | Grotesque, Sexual | More specifically the manga adaptation Mr. Arashi's Amazing Freak Show and its anime known as Midori in the west. | 3 |
| Shuji Tsugawa | Occult/Suspense, Joke/Neta, Horror, Hall of Fame | A character from one Detective Conan's more depressive episode. | 1 | |
| sm666 | sm666 | Horror, Phobic, Hall of Fame | Piropito, also known as nana825763 on Youtube, is a visual artist known for Username666. | 3 |
| Spoo | Joke/Neta, Hall of Fame, Horror | More specifically Shoko Haida's drawing of the character that became incidentally scary. | 1 | |
| T | ||||
| Terrifying Kyou-chan | Grotesque, Joke/Neta, Insanity | Parody of Hitoshi Matsumoto's Obake no Q-taro. | 3 | |
| The Dawn Is Your Enemy | Horror | An Adult Swim bumper to scare away kids. | 1 | |
| This Man | This_Man | Occult/Suspense, Joke/Neta, Horror | A marketing stunt featuring a somewhat unnerving picture of a man's face. | 1 |
| Tiananmen Square | Grotesque, Reality | More on the massacre that took place in Tiananmen Square, Beijing. | 3 | |
| Tomorrow is Sunday | Depression | Work by Motoo Abiko (Fujiko Fujio Ⓐ). "Tomorrow is Sunday. The day after is also Sunday. Everyday is Sunday..." | 2 | |
| Toro on Holiday Photo | トロと休日_写真 | Horror | A rumored photo of ghost in the game Toro on Holiday. | 1 |
| Ttongsul | トンスル | Reality | Korean alcohol made from human feces. Lacking in info. | 2 |
| U | ||||
| Ukraine 21 | ウクライナ21 | Grotesque, Insanity, Depression, Hall of Fame | Two infamous murders from Ukraine. | 6 |
| Ultra-Super-Deluxe-Man | ウルトラスーパーデラックスマン | Joke/Neta, Hall of Fame | Manga by Fujiko F Fujio. | 1 |
| Utsuo no Koi | 鬱夫の恋 | Depression, Horror | RPG based on real experiences. See a let's play here. | 3 |
| V | ||||
| VEAH | Horror, Joke/Neta, Denpa | Music video by YouTuber Barbapapa. | 1 | |
| W | ||||
| Waita Uziga | 氏賀Y太 | Grotesque, Sexual | Bizarre manga artist with his most known work in the west being Mai-chan's Daily Life. | 3 |
| X | ||||
| X-DAY 2000 | X-DAY2000 | Other | A song in the 2000 series, a series of Namco original songs | Not Found |
| X Multiply | エックスマルチプライ | Horror, Grotesque | A retro game that takes place inside a woman's body. | 2 |
| Y | ||||
| Yoshie Kimura | Horror, Joke/Neta, Hall of Fame | Main antagonist of Death Forest. | 3 | |
| You Are An Idiot | PC Damage | A flash virus that would open many windows. | 4 | |
| Yume Nikki | ゆめにっき | Psyche/Flashing | Game where you walk around in a dark dream. | 1 |
| Z |
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