This page covers the characters from the Kunio-kun series. Their names are listed by Japanese ones, since the Western counterparts weren't consistent between the games, and Atlus and Arc System Works decided to go with the Japanese names after they took over the series. They are also listed in the Japanese fashion (family name first, given name last) when the full name is available.
- Also known as: Mr. K (Renegade), Alex (River City Ransom), Sam (Super Dodge Ball), Jeff "Crash" Cooney (Crash 'n' the Boys: Street Challenge)Voiced in Japanese by: Ryo Horikawa (Super Dodge Ball, Kunio no Oden), Yuuki Sato (soccer games), Tomokazu Sugita (Nintendo 3DS games), Takuya Mizoguchi (theater play)Voiced in English by: Greg Chun (River City Girls)
The protagonist of the series. He may look intimidating, but he'll do anything to protect his friends in Nekketsu High with his bare fists.
- Big Man on Campus: Commands a lot of respect in Nekketsu High since he's willing to roll up his sleeves at any sign of trouble.
- Bully Hunter: From the very first game, where Kunio's friend Hiroshi keeps getting attacked by various gangs, and Kunio will accept none of it.
- Hurricane Kick: It's one of his trademark skills in the games.
- Named After Somebody Famous: He's named after former president of Technōs Japan, Kunio Taki.
- Non-Uniform Uniform: In River City Girls, he wears his school uniform jacket with a red hoodie under it.
- Only One Name: Kunio is only known and referred to by his first name as his family name has never been officially disclosed by the creators. However, the live-action movie and television series gave him the last name, Fu'unji.
- Rapid-Fire Fisticuffs: A kick-based variant named the Mach Kick, another trademark move.
Samejima Riki (鮫島 力)
- Also known as: Jack (Renegade, Super Dodge Ball), Ryan (River City Ransom), Crush (Crash 'n' the Boys: Street Challenge)Voiced in Japanese by: Nobutoshi Canna (River City Ransom PCE CD version), Tetsuya Iwanaga (Nintendo 3DS games), Masaaki Okura (Super Dodge Ball), Yukihiro Takiguchi (TV special), Takeshi Terayama (Theater play)Voiced in English by: Kaiji Tang (River City Girls)
- A Day in the Limelight: Given his own story in 2012 game Riki Densetsu, which fleshes out his past before meeting Kunio and acts as a prequel to Renegade.
- Affectionate Nickname: Kyoko calls him "Riki-poo" in River City Girls. It might not be so affectionate on his side considering Kyoko's a crazy ex who still thinks they're dating.
- Delinquent Hair: Has a blue pompadour.
- Friendly Rivalry: To Kunio.
- Non-Uniform Uniform: Wears his uniform jacket draped over his shoulders with no shirt under it, only a sarashi.
- Rapid-Fire Fisticuffs: His trademark skill, the Mach Punch.
- You Gotta Have Blue Hair: His hair is a bright blue.
- Voiced by: Hiroshi Hatakeyama (TV special), Yuji Machi (PCE CD games), Naoki Takeshi (theater play), Kyle McCarley (English, River City Girls)
- Adapted Out: He's absent in the western version of Renegade. In that version, your goal is to win the heart of some random blonde girl (who's named Lucy in European PC manual).
- I Just Want to Be Badass: He yearns to be a delinquent.
- The Load: He sure gets punched and kidnapped a lot.
- Non-Action Guy: He doesn't really participate in fighting or other action-related activities. This changed when he became a playable character in River City Super Sports Challenge: All-Star Special.
- Voiced by: Hisao Egawa (Super Dodge Ball), Ross O'Donovan (English, River City Girls)
- All Bikers Are Hells Angels: No less, since he's based on Bōsōzoku stereotype.
- Backstory: Riki Densetsu gives some neat background to him. When Riki was still middle school student, Shinji was his senior in the soccer club.
- Badass Biker
- Depending on the Artist: In his Renegade debut and NES-based retrohaux games, he wears blue jacket and jeans. In Kunio-tachi no Banka and Super Dodge Ball (Neo Geo), his appearance is more close to '80s Japanese biker thug stereotype, wearing white hair band and buttonless school uniform.
- Voiced by: Keiko Yamamoto (Super Dodge Ball), Dekka-chan (Theater play), Laila Berzins (English, River City Girls)
- Adaptational Attractiveness: River City Girls tones down the mannish look on her face to be prettier and slightly feminine. Since that game is by WayForward, it's a given.
- Amazon Brigade: She leads one in Renegade and many sports games. For unclear reason, Misako and Kyoko (Kunio-tachi no Banka), along with Miho (Shodai Nekketsu Koha Kunio-kun), are also part of her team.
- Berserk Button: There are a few things that rile her up, but what really sets her off is people claiming she is not feminine enough.
- Blood Knight / Spirited Competitor: Seems to challenge Kunio less out of malice and more out of genuine eagerness for a good fight, which only he can seem to provide if Kunio-tachi no Banka is any indication.
- Brawn Hilda: Her main trait throughout all the games is that she's really huge and really scary.
- Held Back in School: In River City Girls she brags about how she's the smartest girl in school because she's been in High School for seven years.
- Huge Schoolgirl: She's twice as huge as other characters in Super Sports Challenge, for the matter.
- Made of Iron: She has the largest health point in many games. In River City Super Sports Challenge, her HP stat is 255.
- Non-Idle Rich: It's revealed that she is rich in River City: Tokyo Rumble, as she mentions she takes trips to Hawaii once a year.
- Plucky Comic Relief: Pretty much in any given game, she takes this role. It usually goes like this - someone gets stopped by her, they pisses her off for some reason (or no reason at all), then she goes berserk and beats up everybody in sight. Hilarity Ensues. Even in a game with serious tone like Kunio-tachi no Banka, she can't help but provide another comical moment.
- Screams Like a Little Girl: Inverted entirely. In every game she's in, her war cries and knock out rattles use the male sound clips.
- SNK Boss: Notably in Kunio-tachi no Banka. She can slap you on the face repeatedly as her grapple attack, or bull-charge you at any moment, both of which really hurt. She's also surprisingly agile for someone being so huge and bulky.
- Voiced by: Yukimasa Kishino (Super Dodge Ball), Gambino Kobayashi (TV special)
- Big Bad: Of several of the games.
- Combat Pragmatist: He brings a pistol into the fist fight. Worse yet, it's One-Hit Kill (except in Kunio-tachi no Banka, where it "only" takes off somewhere around 80% of your health).
- Improbable Use of a Weapon: Can somehow utilize his pistol for trick shots in the Neo Geo Super Dodge Ball.
- Put on a Bus: He's in jail during River City Girls, which is why he doesn't show up in person.
- Why Don't You Just Shoot Him?: Though he has no problem fatally wounding their girlfriends with his pistol in Kunio-tachi no Banka, Sabu's strangely reluctant to shoot Kunio and Riki right away. This can be justified that he wants to let them mourn over their loss, but then comes the final boss fight, where he does use his pistol, but it can be avoided by simply ducking under. Suddenly, his aiming is as good as that of Stormtrooper.
- Would Hit a Girl: Sabu has a serious Kick the Dog moment when he shoots and seriously wounds Misako and Kyoko when they meet for the first time in Kunio-tachi no Banka.
Nintendo World Cup
- Voiced by: Kayli Mills (English, River City Girls)
- Action Girl: In Kunio-tachi no Banka, she joins Kunio to find out who framed him. And even more in River City Girls, where she joins Kyoko to rescue the kidnapped Kunio and Riki.
- Adapted Out: Since the Western release of Nintendo World Cup removed the cutscenes completely, she doesn't appear in that version.
- A Day in the Limelight: Is the co-protagonist with Kyoko in River City Girls.
- Blood Knight: In River City Girls, she tends to consider violence an answer to every roadblock she and Kyoko come across. In most cutscenes, she's typically the first one to resort to threats of violence, and seems to eagerly anticipate fights. It even comes across in the artwork for her smart phone; Kyoko's phone is cute and girly with a bear phone case, while Misako's phone has a plain black case and is banged up pretty badly, with the screen cracked in several places.
- Cute Sports Club Manager: Debuts as one in Nintendo World Cup.
- Depending on the Artist: Looks quite different in her redesign in River City Girls.
- Deadpan Snarker: In River City Girls, practically every other line Misako speaks is said with a thick layer of sarcasm, and when she's not threatening to beat someone into the pavement, she's either directly or indirectly insulting them with snark.
- Femme Fatale: This is how she persuades Kunio and his friends to join her soccer team in the intro of Nintendo World Cup (only appears in the Japanese version), promising Smooch of Victory. They buy it like idiots.
- Girliness Upgrade: Inverted in River City Girls. She ditches her bow, wears mini-culottes in the place of a skirt, and is generally a lot brasher and more tomboyish.
- Named by the Adaptation: In the television series, her family name is Enjoji.
- Non-Uniform Uniform: In River City Girls, in lieu of the school's uniform skirt, she wears a pair of black mini-culottes that probably skirt the edge of the dress code.
- Red Eyes, Take Warning: She's got red eyes in River City Girls and is quite a bit violent.
- Tomboy with a Girly Streak: In River City Girls, she's the tomboy in her and Kyoko's Tomboy and Girly Girl dynamic, but she's also the one wearing lipstick.
- You Gotta Have Blue Hair: Usually seen with blue hair, but is redesigned in River City Girls to have black hair.
River City Ransom
Shimada Mami (島田 真美)
- Also known as: Cyndi (River City Ransom)Voiced by: Sarah Williams (English, River City Girls)
- Adaptation Dye-Job: A very minor example in River City Girls, where her eyes are blue rather than brown.
- Damsel in Distress: In River City Ransom.
- Dual Boss: In River City Girls, she fights alongside Hasebe as the unlockable alternate Final Boss.
- Hair of Gold, Heart of Gold: According to River City: Rival Showdown, she has a kind and innocent personality and it helped her see through Riki's rough side. Not so much in River City Girls though.
- Girly Bruiser: She's a playable character of Cheerleader team in River City Super Sports Challenge. She's actually pretty strong here. She's also plenty tough in River City Girls.
- Sweater Girl: Part of her Non-Uniform Uniform in River City Girls. The sleeves slightly cover up her hands.
- Took a Level in Jerkass: Becomes very rude and snotty in River City Girls. Likely due to the fact that she's putting up with two crazy girls.
- Those Two Guys: Is never seen without Hasebe in River City Girls.
- True Final Boss: For River City Girls.
Hasebe Kazumi (長谷部 和美)
- Also known as: Roxy (River City Ransom)Voiced by: Saori Sugimoto (Kunio no Oden), Cristina Valenzuela (English, River City Girls)
The 3rd year student of Reiho Academy, Hasebe is a good-hearted student who always wants to help someone in trouble. In River City Ransom, She merely warns Kunio and Riki about Yamada and his nefarious "Dragon Twins", but she gets bigger role in later games, and she proves to be a good fighter as well. She also happens to be Yamada's love interest since this game, but since Hasebe often stands up against his villainy (mostly because of Yamada and Todo being jerkass to Kunio), this one-sided relationship doesn't go well. In River City Girls, she acts as Misako's rival.
- Cute Bruiser: She joins Cheerleader team in River City Super Sports Challenge, and she's one of the strongest characters in entire roster thanks to her absolutely vicious special skills.
- Dual Boss: In River City Girls, she fights alongside Mami during their unlockable boss fight.
- Implied Love Interest: Are Hasebe and Kunio Just Friends or more than that? There's certain air of close relationship between two, but it's never made explicit. River City Girls establishes her as Kunio's actual girlfriend.
- Last-Name Basis: She's one of the only characters who goes by her family name in the series where some don't even have one. This may have to do with her role as a chairman of Nekketsu sports tournament, as it's formal to refer to someone as their family name in Japan.
- Those Two Guys: Is never seen without Mami in River City Girls.
- Took A Level In Bad Ass: She became to take more active role in Arc System Works games.
- Took a Level in Jerkass: Becomes very rude and snotty in River City Girls. Likely due to the fact that she's putting up with two crazy girls.
- True Final Boss: For River City Girls.
- You Gotta Have Blue Hair: Her artwork depicts her hair to be purple. While the NES/Famicom games color it black, the games on later generation consoles such as PC Engine port of Downtown Nekketsu Monogatari reflect this design, and eventually it was added back to her 8-bit appearance during Atlus era.
Kinoshita Tadashi (木下 忠)
- Also known as: Blade (River City Ransom)
- Weapon of Choice: He always carry a chain in the fight.
- Bound and Gagged: His special skill in River City Ransom EX is Chain Chump, which involves him throwing a chain at you, wrapping it around you.
Mochizuki Shun (望月 駿)
- Also known as: Turk (River City Ransom), Charles Edward "Wheels" Darlington (Crash 'n' the Boys: Street Challenge)
- Super Speed
- Teleport Spam: His special skill in River City Ransom EX, Nitro Port, gives him ability to teleport right in front of you.
Taira Kiyofumi (平 清文)
- Also known as: Mojo (River City Ransom)
- Spinning Piledriver: His special skill in River City Ransom EX, Slam Punk.
Kobayashi Masao (小林 政男)
- Also known as: Thor (River City Ransom), Worthington "Monty" Montgomery (Crash 'n' the Boys: Street Challenge)
Goda Tsuyoshi (豪田剛)
- Also known as: Ivan (River City Ransom), Richard "Sprecks" Spreckles (Crash 'n' the Boys: Street Challenge)
- Big Brother Instinct: The reason he's forced to fight Kunio and Riki in River City Ransom is that the Double Dragon Twins kidnapped his sister.
- The Heart: According to River City Super Sports Challenge: All Stars Special, his personality keeps the team together.
- Nice Guy: His being nice has made him really popular among everyone he meets.
- Use Your Head: His headbutt is his signature attack.
Godai Susumu (五代 奨)
- Also known as: Tex (River City Ransom), Clinton "Clint" Swanson (Crash 'n' the Boys: Street Challenge), Tex Swanson (River City Ransom: Underground)Voiced by: Sean McLoughlin (English, River City Girls)
- Ax-Crazy: In case his slasher smile wasn't enough warning, Godai is a little on unstable side, occasionally scaring off even his own colleagues. He looses himself on Kunio and Riki, though.
- Everything's Better with Spinning: All of his techniques in River City Ransom EX involves spinning himself.
- Friendly Enemy: In Nekketsu! Street Basket, he ends up participating in the USA basketball tournament if only because Riki forced him to.
- Perpetual Smiler: He's rarely seen without smiling in his own artwork no matter what.
Hattori Ryuichi (服部 竜一) and Hattori Ryuji (服部 竜二)
- Also known as: Randy & Andy (River City Ransom)
Called as Dragon Twins (Hattori Twins in the Japanese version), these two put up the last fight before you confront Yamada.
- The Dragon/ Co-Dragons: Of Yamada.
- Dual Boss
- Meaningful Name: Ryuichi and Ryuji's literal meaning is "Dragon First" and "Dragon Second". Ryuichi is a bigger brother of Ryuji.
- Shout-Out: To the Technōs Japan's greatest hit, Double Dragon. Their narrow eyes resemble those of Lee brothers in the NES port of the first game. Their theme in River City Ransom is also ripped straight from the first Double Dragon's intro.
Yamada Taiki (山田 大樹)
- Also known as: Slick (River City Ransom), Winston "Skip" Hildegard Jr. (Crash 'n' the Boys: Street Challenge)Voiced by: Griffin Puatu (English, River City Girls)
- Big Bad: In River City Ransom.
- Crazy Jealous Guy: He's this for Hasebe in River City Girls. He believed the two of them were fated to be together since grade school and became absolutely enraged when Kunio made the first move.
- Disproportionate Retribution: In River City Girls, it's revealed that he's been in love with Hasebe since grade school. When Kunio made the first move, Yamada's first course of action was making contact with demonic forces to get revenge. It's even more of an overreaction when Yamada reveals that he never even talked to Hasebe beforehand.
- Mind over Matter: He learns a telekinesis attack in River City Ransom EX for some reason. It can actually take off a good chunk of your health if you don't stop him. River City Girls takes this inexplicable attack and completely runs with it, complete with psychic blasts and levitation. They're also apparently of demonic origin.
- Power Glows: He has a sickly purple aura around him in River City Girls, and he has blatantly supernatural powers in that game.
- We Used to Be Friends: According to him in River City Girls, him and Kunio used to be best friends until Kunio confessed to Hasebe before Yamada got the chance to.
Sawaguchi Yasuo (沢口 靖夫)
- Also known as: Moose (River City Ransom)
- Bonus Boss: While he's most likely the first boss, you actually don't have to fight him to finish the game, at least in the NES version of River City Ransom.
- Number Two
- Spin Attack: His special skill in River City Ransom EX is Shuriken attack, which involves him spinning in the air and flying right into the opponent's face.
- Verbal Tic: Speaks in rather mangled English in River City Ransom EX.
Kamijo Tsuneo (上条 恒男) and Yamamoto Noriyuki (山本 憲之)
- Also known as: Benny & Clyde (River City Ransom)
- Bonus Boss
- Dual Boss
- Precision-Guided Boomerang: It's their special skill in River City Ransom EX, being able to send any weapons and make them come back; huge emphasis on "any", because they can do this with everything imaginable, such as pipes and stones.
Nishimura Naritaka (西村 成孝)
- Also known as: Rocko (River City Ransom), Lawrence "Baldy" Baldwin IV (Crash 'n' the Boys: Street Challenge)Voiced by: SungWon Cho (English, River City Girls)
Downtown Nekketsu Kōshinkyoku
Sugata Sanjuro (姿 三十朗)
- Also known as: "Cheese" Romano (Crash 'n' the Boys: Street Challenge), Gary (River City Ransom EX)
Momozono Satomi (桃園 里美)Momozono is a 2nd year student and cheerleader of Nekketsu High. She and Sugata are good childhood friends.
- Character Development: She didn't have much presence in Nekketsu Kōshinkyoku and Crash 'n' the Boys, but she later develops romantic relationship with Sugata in Baseball Monogatari.
- Cute Bruiser: She joins Cheerleader team in River City Super Sports Challenge. Like others in the team, she can be a great fighter.
- Cute Sports Club Manager: Becomes one for Kunio's team in Crash 'n' the Boys.
Todo Mamoru (藤堂 護)
- Also known as: Todd / Theodore Thornley IV (Crash 'n' the Boys: Street Challenge), Titus (River City Ransom EX)
Double Dragon II (GB) / Bangai Rantō Hen
Munakata Yuji (宗方 裕二)The guy who's beaten up Hiroshi this time, as he attempted to save Mihoko from him. Yuji is a son of Munakata Corporation's president, and had several high schools under his control until Kunio and Riki came along to challenge him.
- Adapted Out: The Western fans won't recognize him, as the Double Dragon II version changed the story entirely.
- Chuck Cunningham Syndrome: Didn't appear in any other Technōs games. In the Arc System Works era, he turns out to be the man who manipulated the events in River City Melee: Battle Royal Special.
- Harem Seeker: He's desperate at making girlfriends, much to many's dismay.
- Irony: He gets this moment in Battle Royal Special when he failed to won any girl's heart except one: Misuzu. Of course, things went south when he tried to reject her.
- Pose of Supplication: He ended up doing this to Hiroshi in the ending of Bangai Rantō Hen.
Mihoko (みほこ)The girl Hiroshi fell in love with.
- Adapted Out: Likewise, she's not present in the Double Dragon II version.
- Chuck Cunningham Syndrome: Hadn't seen since her debut in this game. That is, until she returns as a minor NPC in 2019's River City Girls.
- Satellite Love Interest: Her character in Bangai Rantō Hen only serves as an excuse for Hiroshi to get lynched by delinquents (again) and for Kunio to avenge him. She doesn't even appear in the ending.
Crash 'n' the Boys
Todo Konosuke (藤堂 晃之介)
- Also known as: Mr. Thornley (Crash 'n' the Boys: Street Challenge)
- Screw the Rules, I Have Money!: What else could him and Todo invite the United States athletics to their tournament with, just to screw Kunio?
- Also known as: Rocky (Crash 'n' the Boys: Street Challenge)
- Defeat Means Friendship: Johnny grows respect for Kunio after having a match with him, which eventually makes him turn against Todo.
Raphael (ラファエル)Raphael is a black player from Oklahoma High School, and the best one overall in the team. He also tags along Johnny in numerous sports games.
Asano Rika (浅野 里佳)Rika is a manager of Nekketsu High baseball team with rather unfortunate health condition.
- Ill Girl: She became terminally ill after Nekketsu baseball team fell out of tournament.
Ashino Kuniko (芦野 久仁子)
- Also known as: Shel (River City Ransom EX)
Kunio-tachi no Banka
- Voiced by: Kira Buckland (English, River City Girls)
Kunio-tachi no Banka was her only appearance during the Technōs era. Arc System Works then retooled her in River City: Tokyo Rumble and later games, most likely because Riki already had girlfriend Shimada back in River City Ransom. She's completely different (and pretty minor) character here, other than that she's still close friend with Misako.
She returns as Riki's girlfriend and a playable main character in River City Girls. Except not really. It turns out she's just a crazy ex who thinks she's still dating him.
- A Day in the Limelight: In Wayforward's River City Girls, she is the co-protagonist, along with Misako.
- Batter Up!: She's shown wielding a bat as her preferred weapon in River City Girls' promotional material.
- Chuck Cunningham Syndrome: Kunio-tachi no Banka was the only game she ever appeared for a long time until River City: Tokyo Rumble in 2013.
- Cloudcuckoolander: If not full-on The Ditz in River City Girls. For one thing, she somehow ends up in detention with Misako at the beginning despite not even attending the same high school.
- Hurricane Kick: One of her specials in River City Girls has her do inverted handstand splits while spinning rapidly, which can strike enemies on all sides multiple times.
- I Know Madden Kombat: In River City Girls, her heavy dash attack, launcher, and air grab are all volleyball techniques
- Kick Chick: Most of her combos in River City Girls involve lots of kicking.
- Non-Uniform Uniform: In River City Girls she wears a blue jacket over her school uniform. Subverted in that she doesn't even attend River City High, and was expelled from her previous school for stealing basketball hoops. It's unclear if she even still attends high school.
- Rapid-Fire Fisticuffs: It's her special skill in Kunio-tachi no Banka, just like Riki.
- In River City Girls, her standing special is a rapid-fire barrage of kicks that would make Chun-Li envious.
- Rose-Haired Sweetie: Her hair is salmon pink in River City Girls, and she's much more outwardly friendly than the rather blunt and abrasive Misako, Psycho Ex-Girlfriend tendencies not withstanding. She even befriended Noize back in grade school when she was just a shy outcast named Nozomi. Unfortunately, Noize's embarrassment over the whole thing leads to her initiating a boss fight.
- Stuffed into the Fridge: Although she does take a part in the game as one of playables, her major role in Kunio-tachi no Banka is to get shot by Sabu in front of Riki, just so his mission becomes more personal. She gets better in the ending, though.
Ken (ケン)Hired by Sabu to frame Kunio, Ken is his long-lost brother who wants a revenge on him. Actually he isn't, he's just a jealous guy who happens to resemble Kunio.
- Criminal Doppelgänger: Ken was adopted by Sabu because he resembles Kunio. Their plan is then to use this to frame Kunio at the start of the game.
- Driven by Envy: His motive to defeat Kunio, even going far to disguise as his unknown brother to guilt trip him.
- Redemption Equals Death/ Villain's Dying Grace: After getting shot by Sabu, he confirms that he is not really Kunio's brother, and was used by Sabu in his plan to take revenge on Kunio.
- Unexplained Recovery: His eventual death by You Have Failed Me from Sabu means he's not able to come back after this game, but he returns in River City Super Sports Challenge. Probably a Legacy Character.
River City Girls
- Voiced by: Mary Josephine Hanson
- Animal Motifs: Spiders. Not only does her hair look like a spider but she makes use of a lot of attacks that leave web-like patterns.
- Elegant Gothic Lolita: Her design seems to mix this with ghostly Japanese aesthetic, with a frilled dress and cuffs, a pale pallor, and spiderweb motifs.
- Geisha: The other side of her aesthetic, with an altered kimono and the large piled geisha hair.
- "Get Back Here!" Boss: She spends much of the fight floating around in the air and completely out of your range. In order to knock her down, you'll have to hit her twice either by wall-jumping and attacking when she's near a wall, when she floats down enough for you to reach her, or by causing her needle attack to rebound and hit her instead.
- Voiced by: Erika Harlacher
- A Dog Named "Dog": She named her dog "Dawg".
- Old Shame: In-universe. Noize is beyond embarrassed when Kyoko brings up the fact that she used to be a shy outcast girl named Nozomi. This leads her to initiate a boss fight.
- The Power of Rock: Part of her boss battle is avoiding cascading Guitar Hero-like notes while she plays a vocal section of her boss track.
- Sinister Scythe: Her guitar also doubles as this, and she likes tossing it around the arena a lot.
- We Used to Be Friends: Kyoko had befriended her in grade school, promising the two of them would be best friends. Unfortunately, Kyoko suddenly left a month later, leaving Noize feeling incredibly hurt. It turns out Kyoko was expelled for stealing basketball hoops.
- You Gotta Have Blue Hair: Her hair is teal.
- Voiced by: Xanthe Huynh
- Badass in a Nice Suit: Is the Final Boss and wears a sharp, backless business-like suit.
- Contrasting Sequel Antagonist: Sabu was a very cold and pragmatic yakuza boss who is perfectly happy to pull out a gun on two young girls and any of his henchmen who mess up. He is also the driving force of the game since he creates a conspiracy to frame Kunio and Riki in revenge. In contrast, his daughter is quite honorable, prefers a sword over a gun, and has nothing to do with Kunio and Riki's disappearance whatsoever.
- Daddy's Little Villain: She's in charge of her dad's gang while he's in prison, and she's doing a damn good job at it.
- Doppelgänger Spin: She can summon eight different illusions of herself to hide and ambush you from.
- Equal-Opportunity Evil: Employs both men and women in her gang which Kyoko finds cool and progressive since the Yakuza is mostly male dominated.
- Family Theme Naming: Her name is literally just her father's name with -ko tacked on to indicate that she's a woman.
- Katanas Are Just Better: In contrast to her father, she fights with a katana.
- Ki Attacks: She can summon water- or fire-based energy attacks to pressure you from every angle.
- Mismatched Eyes: She has one grey-blue eye and one purely white eye. The lack of pupil in the white eye suggests she could be blind in that eye, but there's no confirmation of that either way.
- Plot-Irrelevant Villain: Like all of the other bosses, she has absolutely nothing to do with Kunio and Riki's disappearance. She's just really pissed off that Misako and Kyoko stormed her tower and beat up her men.
- Tattooed Crook: As all yakuza have, though she rolls up her sleeves to show enough of them. She even wears a backless shirt just to show off her back tattoos.