Kakutou Bijin Wulong, also known as Fighting Beauty Wulong, is a 3D beat'em up developed by DreamFactory and published by Bandai for the PlayStation 2 in 2006. Based on the manga and anime of the same name, it follows martial artist Ran Hinomoto through ring battles and street brawls. The game blends beat'em up chaos with fighting game-style mixups and includes a two-player versus mode.

Kamen Rider is a two player beat 'em up based on the Japanese TV show of the same name. You play as a normal human until you transform into the titular Kamen Rider, then defeat bosses with the famed Rider Kick. Its gameplay is fairly standard but lacks throws.

Karate Blazers is an obscure four-player arcade brawler from Video System Co., Ltd. In a lot of ways, it's a Final Fight rip-off with a typical urban setting, simple two-button combat, contact-based grabs, and goofy enemies. However, it's notable for its somewhat strange aerials, overpowered but difficult-to-execute dash attacks, and gigantic waves of enemies.

Set in feudal Japan, the game follows a ninja's quest after the kingdom's princess Shizuhime is abducted by a group of mysterious ninjas.

Kenka Banchou is a free-roaming 3D beat'em up, the first entry in the series. Players take the role of a delinquent high school student who fights rival gangs to become the top banchou of the school. The game features open exploration, improvised weapons, and stare-down duels that decide who strikes first.

The sequel follows a new protagonist, Tomoya, who must earn his place among the city's yankii delinquents by taking on rival gangs and their leaders. The game keeps the series' signature stare-down duels.

Players take control of a delinquent high school student on a class trip to the historic city of Kyoto, where he must defeat the local banchou leaders to win a national title. The game keeps the series' open-ended brawling and stare-down mechanics.

Also known as 기파이터 태랑.

Kick-Ass 2 The Game is a 3D beat'em up based on the film Kick-Ass 2. Serving as a sequel to Kick-Ass The Game, it lets players control Kick-Ass, Hit Girl, and other heroes as they fight the criminal army of the Mother Fucker.

Players take control of Kick-Ass, Big Daddy, and Hit Girl across isometric levels, fighting street gangs and criminal bosses.

King of Dragons is a fantasy hack 'n' slash from Capcom. It's notable for its extremely simple combat engine, which consists only of a normal attack, jumping, and a death-blow. It has RPG elements such as experience and permanent weapon upgrades. It also has a whopping 16 stages although they're relatively short.

King of Dragons is a two player port of Capcom's medieval fantasy arcade brawler. Its extremely simple combat engine is reinforced by an RPG-style experience-based leveling system as well as acquiring new weapons and shields that change your character's appearance. It features an unbelievable 16 stages and an impressive amount of enemy and boss variety.

King of the Monsters 2 is a hybrid brawler/wrestling game that features fights between Japanese-style giant city-wrecking monsters. It's a port of the original arcade version. It has both two player co-op and versus gameplay modes. Its combat features multiple attack buttons, a grappling mechanic, and charge-based special attacks that range from teleportation to growing a horn and breaking it off to use as a weapon.

King of the Monsters 2 is a hybrid brawler/wrestling game with a giant monster theme from SNK. Unlike its predecessor, which focused on one-on-one combat, this game features traditional brawler stages as well as more elaborate boss fights and even a competitive mode. It's notable for its unique concept, bizarre enemy design, and huge movesets.

Based on the manga and anime Kishin Douji Zenki, it follows the exorcist priestess Chiaki and the demon child Zenki as they battle evil spirits.

Knights of the Round is a hack 'n' slash brawler from Capcom. It innovates in no less than four ways: it introduced a blocking mechanic that grants temporary invincibility, your character gains experience and changes appearance, items can be broken up and shared, and killing the same type of enemy consecutively grants a bonus. It also has a one-of-a-kind melodic medieval soundtrack.

Knights of the Round is a remarkably faithful port of Capcom's weapons-based arcade brawler. It features a blocking mechanic that grants invincibility, RPG-style experience points that visually alter your character when you level up, items that can be broken up into smaller pieces, and a scoring system that rewards defeating the same type of enemy consecutively. It also has a super-catchy soundtrack that's excellent even by Capcom standards.

Knights of Valour is a Chinese-developed brawler based on the Romance of the Three Kingdoms trilogy. It features similar gameplay to the Capcom D&D games, including weapons-based combat, crouching, inventory, experience points, and branching paths.

Knights of Valour 2 is the sequel to IGS's Romance of the Three Kingdoms-themed arcade hit. It features more of the same gameplay that focuses on large movesets, inventory management, experience points, and branching paths.

Also known as Sanguo Zhan Ji 3 - Knights of Valour 3

Players control reincarnated individuals of the Seven Stars to defeat the rebellious Lü Bu, the Greedy Wolf, and ultimately uncover the Beichen God's plot to purify the world.

Knuckle Bash is a professional wrestling themed brawler from Toaplan, who normally make space shooters. It's notable for its dual campaigns, unlockable extra fighters, boss-heavy gameplay, and digitized character portraits.

Kouryuu no Mimi is a beat'em up released for the SNES by Vap Inc. in 1995. Based on an obscure manga, the game follows a young martial artist who battles street thugs across single-plane stages. Its combat borrows from fighting games, giving the protagonist a moveset closer to a fighter than a typical brawler.

The player controls a protagonist who uses martial arts to overcome mutant vegetables that have invaded his freezer.

Kung Fu Strike The Warrior's Rise is a 3D beat'em up developed by Chinese studio Qooc Software.