"Banchou" from Gate Keepers. Subverted in that he looks and talks like a delinquent but acts more like a Love Freak.
Jet Set Radio: A group of them known as the Rudies are the protagonists of the game.
Kyo Kusanagi from The King of Fighters is a mild example, he gets into fights, skips school almost constantly, ignores/neglects his girlfriend and seems to enjoy brawling random people.
Daigo Kazama, Eiji "Edge" Yamada and Gan Isurugi. Of course, the school they attend is nothingbutdelinquents.
Subverted with Akira, Daigo's sister. While in her biker costume she tries to act very tough and brash, to fit with the rest of the delinquents. But afer she reveals herself to be a girl, she makes a complete 180 degrees change to a very soft, caring, almost shy, girl.
In the sequel Project Justice, they're joined by female delinquent Aoi "Zaki" Himezaki and her all-female gang, the Ladies Team. The two gangs even face off against each other in the game's story mode, as illustrated above.
Without being one of them, Batsu Ichimonji also fits here, mostly because of his Hot-Blooded attitude and his cross-like scar on the forehead.
Eri Kasamoto, debuted in Metal Slug 2, is one. Being a former sukeban from Japan, she still sports blond hair and has tough personality to begin with. Unusual for this trope, she was found abandoned before she ran away to become one for a street gang.
Kanji Tatsumi. He certainly has the bleached hair, leather jacket, brash attitude and intimidating appearance of one. Though, the reason he's like this is to mostly hide his insecurities. Despite his outward appearance, he's a pretty nice guy in general. In the epilogue for Golden, he's taken out his piercings, styled his now-black hair in a corporate haircut, and wears a plain white button-down though.
The main character's Persona Izanagi was intentionally designed to look like one, in keeping with his role as the party's leader. In the fighting game Persona 4: Arena, the announcer explicitly refer to him as a delinquent (as well as a Siscon).
Persona 5: Your high school's local "problem kid", Ryuji Sakamoto, has brightly-dyed hair, punkish attire, rough speech patterns, and preference for blunt weapons. As the quotation marks may imply, he's just seen as a problem kid because of adults painting him as one for having a violent argument against Coach Kamoshida when the latter treated him like trash on the track team. However, Ryuji happily enjoys being seen as such once he becomes part of the Phantom Thieves, though he wishes to fix everything that went wrong in his life.
Inverted in Disgaea 3 where Raspberyl is a demon delinquent. Oh, she's rebelling against the ideals of the School of Evil culture alright. By wearing proper clothing, going to class, abiding by a curfew that she made herself, and donating blood whenever she can. She's a nice girl herself, but pissing off everyone else does make it fun. The other students do genuinely appreciate her tendency to bail them out of trouble, though.
Riki and Kunio (Ryan and Alex) from the Kunio-kun series. The third stage of Nekketsu Kouha Kunio-kun had Kunio fighting a sukeban gang.
Masamune Date and his men from Sengoku Basara. Think Sengoku Era biker gang.
Kenka Banchō is a series of video games for the PS2 and PSP where you get to play a delinquent. The plots are about being the biggest bancho of your school (4, 6), your hometown (1, 5), or the whole country (3, Bros.). The second game even introduces a whole faction of its close cousins, the bosozoku, and the game adds a ton of motorcycle mechanics and a true open world to make up for it.
Samurai Warriors 3: Masanori Fukushima, despite living in the Sengoku era, sports a pompadour hairdo and has delinquent-esque mannerisms.
Akira, from the near-future chapter of Live A Live, is the very image of a delinquent. He even slouches.
Michiru Hanaten in 2nd Original Generation is just a typical Japanese Delinquent who wants to become the number one in Japan. He also becomes the pilot of the newest machine of the series: the G-Bankaran.The restis history.
Daidouji from Senran Kagura is notable for being explicitly based on this trope while not actually being one. Her Ninja Turnover outfit is based on the "bancho" character type, and is nearly identical to Jotaro Kujo, down to the frayed hat. Her normal school outfit resembles sukeban, especially Makoto Kino (Sailor Jupiter)'s outfit.
Makiko Date from Digimon Story: Cyber Sleuth has the mannerisms and talks like a typical Japanese delinquent, which is strange since she's a detective with the police department.
The villain team from Pokémon Sun and Moon, Team Skull, is a mish-mash of this and American Street gangs. They have quite a few hallmarks of the yankii subculture, such as bandanas, face masks, Delinquent Hair, excessive jewelry and tattoos.
Osoru Shidesu, the leader of the delinquents mentioned above in the Yandere Simulator example, is planned to be one of the rivals Yandere-chan must get rid of to get Senpai. Not much is known about her at this time, other than a rumor that she beat up at least ten bullies, possibly more, by herself, and that she'll be suspended from school for a serious infraction until the week she needs to be eliminated. The Delinquent backstory video hints that she was suspended not so much for a serious infraction but to separate her from the other delinquents, whom Genka hopes to reform.
Yandere-chan can also join the delinquents if she dyes her hair, adopts a 'tough' persona, and does some tasks for the delinquents, with the bonus of being able to intimidate anyone, at the cost of a permanently lowered reputation.
In Ensemble Stars!, Kuro used to be one before joining Yumenosaki, having been in a gang. He tried to leave that scene in order to protect his younger sister, but he still has the look (dyed red hair pushed back, earrings, and the Face of a Thug) and the speech pattern and so is often perceived as one. Souma is also sometimes mistaken for a delinquent due to the sword he always carries with him, but he's not yakuza, just a very old-fashionedCloud Cuckoo Lander who acts like a Samurai.
Cloud in Final Fantasy VII is supposed to incorporate a little bit of imagery associated with delinquents - he has an obnoxiously teased bright blond hairstyle, an earring, enormous combat pants tucked into boots, a rude and rebellious personality, and is shown riding motorbikes and fighting with a baseball bat. (In Dissidia Final Fantasy, this is lampshaded with one of his equipment sets, "Force of the Resolute", which incorporates the Nail Bat, Skull Wristlet, Spirit Band and Bomber Jacket.) In Final Fantasy VII Remake he has the stereotypical hands-on-hip pose as one of his idle animations.
Mega Man X DiVE has the "Campus Festival" special event, which brings "Gangsta Boy" Sigma and "Gangsta Girl" Eratoeir as playable characters. Both of them dress up the part with the typical uniforms of Japanese school gang leaders (Sigma wears a Commissar Cap while Eratoeir wears Sarashi) and even have baseball bats as their default weapons.
River City Girls Zero: Idle Animation for Kunio and the gang will have them squat (something of a popular gesture amongst Japanese delinquents, referred to as "Yankii-Zuwari") if you just stand there.
The Friends of Ringo Ishikawa: Ringo Ishikawa and his friends are Japanese delinquents that regularly get into fights with delinquents from other schools. The plot revolves around them being at a loss over what to do with their lives once they grow up.
As minor characters
The Battle Cats has the appropiately named unit "Delinquent Cat", whose description says he's known as the Bancho of Cat School. His looks and attack are a refference to Jotaro Kujo, when the unit evolves into Angry Delinquent Cat, he s gains more typical delinquent looks: his uniform gets tattered and his sleeves are ripped, he gets a comisar cap, geta and a blade of grass in his mouth. His final form, Ultra Delinquent Cat, gives him bandages in his (now huge) forearms, gives his uniform a flame design and makes his geta ridiculously tall.
The DJ characters from beatmania IIDX are depicted this way in the video/overlays for "FAKE TIME" from IIDX RED.
A few Digimon video games include the bancho Digimon in their cast, five prideful Mega-level Digimon who emerged from tough battles with unbroken spirit. Each one of them has elements of delinquents in their design, such as the black "Gaku-Ran" Coat Capes that they all share.
BanchoGolemon is covered with tattoo-like kanji carvings.
BanchoLillymon is a sukeban with a long, torn black skirt and wields a Killer Yoyo with a vine string.
BanchoMamemon has the Commissar Cap, the chains, and twin nightstick-knuckledusters.
BanchoStingmon has the torn-sleeved jacket, the rolled-up trousers and the spiked shoulders to match.
In RPG Maker horror game GU-L, Nobuhiko fills this archetype for his school group. He has blonde-dyed hair, a butterfly knife, and flies off the handle when he can’t find the lighter for his smokes.
Great Baggi in Monster Hunter 3 (Tri) and onward is essentially a bancho in raptor form. The crest on its forehead is a clear nod towards the characteristic pompadour, it is causing others trouble by putting them to sleep with his saliva and commands a group of smaller versions of itself.
Pangoro is based off one, and is appropriately a Fighting/Dark type. It even has a "coat" like one.
So are the motorcycle gang people you see in Kanto's Cycling Road and the Sevii Islands subplot (who often use Koffing and Grimer) and Unova's variant, who use Scraggy and Sandile lines.
The Pokémon Yungoos and Gumshoos have shades of this as well, sporting a permanent scowling face and greased blond hair.
Unova's Elemental Monkey trio is an interesting case, as their status as this is meant as double-layered symbolism. Grass-type Simisage has the yankii pompadour and foul temperment. Fire-type Simisear is bosozoku as shown by its fingerless glove markings on its hands, the collar of fur on its neck giving it the appearance of wearing a jacket, and its hands reach out to grab invisible handlebars as if it's on a motorcycle. Water-type Simipour is all dolled up like a kogal would be. It's symbolism because the trio is also meant to represent the Monkey Morality Pose—wide mouthed Simisage being "Speak No Evil", big eared Simisear being "Hear No Evil" and blind Simipour being "See No Evil". Their delinquent status is meant to show that they failed this morality; yankiis are foul-mouthed and rude (hence, Simisage failed to speak no evil), bosozoku produce a lot of noise pollution from their motorcycles (hence, Simisear failed to hear no evil) and kogals are vain and only care about their looks (hence, Simipour failed to see no evil).
Just about everyone in River City Ransom. Well, except the shop keepers, waiters, children, the old man at the sauna, Roxy, and Ryan. But still!
Several side characters in Shenmue are like this, including Goro Mihashi, a Greaser Delinquent at the Yokosuka docks who becomes very friendly towards Ryo after having his ass beaten during their first encounter. Other minor delinquent characters include Tetsuya Nagashima and Akio Enoki, who similarly attack Ryo but fail, and Rena Isayama and Yumiko Minamino, a pair of stereotypical 80s sukeban (with the latter also having shades of Gyaru Girl) who hang around Dobuita acting very rude towards everyone, and have an optional Quick Time Event battle. If Ryo fails this event, Rena will slash his throat with a razor hidden in her sleeve, which will just mean that he'll spend the rest of the day recuperating in the Dojo and will be up and about the next day.
In Slap City, Ittle Dew changes her appearance to this in her Delinquent skin (first appeared in Ittle Dew 2). This skin also subtly changes her weapons. Her wooden stick becomes a baseball bat, and the ice ring becomes a brass knuckle.
Delinquents can be found loitering around the school's incinerator. If Yandere-chan approaches them with a corpse, they will attack her and beat her into a coma. If she's just holding a weapon, they'll still fight, but not to 'into a coma' levels. The Head Delinquent, Osoro Shidesu, is also one of the planned romantic rivals. Their backstory reveals that they had ones been victims of bullying. After the guidance counselor, Genka Kunahito, refused to do anything about it (because at the time she required concrete proof that they couldn't provide), and after witnessing Osoro beat up a number of bullies by herself, the victims began to emulate Osoro and follow her, becoming the delinquents. Genka regrets her inaction and staked her career on trying to reform the delinquents.
Until April 2018 the alpha builds had a different set of delinquents, however, since their aesthetic was more akin to delinquents in the Eighties rather than modern times, they were replaced with the above. It's planned to bring them back in 1980's Mode.
Roughraff is a reptilian yo-kai with a giant orange pompadour wearing a sarashi. He inspirits well-behaved youths to become delinquents. His evolution Badude carries around a large nail bat and is explicitly a gang leader.
Fusing Roughraff with Jibanyan gives you Baddinyan, a delinquent version of Jibanyan that sports a dark purple pompadour, sunglasses, a scar over his left eye and a uniform with the kanji for "Rebel" drawn in the back. He's also constantly squatting in the typical delinquent way, with his back to the enemies.
album art, Kyoko's doing the squat and wielding a baseball bat, and she's a known delinquent.