In Rival Schools: United by Fate, he is introduced as recently transferred student to Taiyo High searching for his mother.
His individual ending in the game reveals he saves his mother and makes peace with his father, once he learn that the latter was brainwashed by his school's own student who orchestrated the event.
In the sequel, Project Justice, Batsu is again the main character, but is dogged by accusations that he is responsible for a new wave of attacks on local schools.
Batsu was one of two Rival Schools characters (along with Akira) planned to appear in the canceled game Capcom Fighting All-Stars.
He is a playable character in Tatsunoko vs. Capcom: Ultimate All-Stars, as well as Street Fighter Online: Mouse Generation, and a solo unit in Project X Zone.
He likes red jerseys, fighting spirit and attractive women (this includes fellow teacher Kyoko, which causes a heated rivalry with Hideo); he dislikes bad manners, laziness, and things that his mother and father never found to be important, and he seems to love corporal punishment as his main weapon is a kendo sword that he hits opponents with.
In that game, he searches for persons responsible for injuring his older brother and fellow baseball player, Shuichi, and joins Natsu and Roberto when he finds they are doing similar investigations.
Her initial appearance in the game is under a motorcycle helmet and a biker gear, posing as a boy in order to find out what happened to her older brother, Daigo.
She befriends two of his subordinates, Edge and Gan and they eventually rescue Daigo, where Akira's true identity is revealed to the characters and player.
Unlike in Rival Schools, Akira starts off without her motorcycle helmet disguise, but can unlock it after playing through a certain storyline in the game.
[2] She appears as a playable character via downloadable content in Street Fighter V, where she is revealed to have finally overcome her aquaphobia, thanks to Gorin University's alumni, Nagare.
Though Edge is initially suspecting of Akira, and even engages, with Gan's assistance, a fight with her, he eventually comes to accept her, especially after she reveals her true gender.
In Project Justice, Gan's role is much similar to Edge's, with both being used to attack random schools and eventually help the gang leader break free of his brainwashing.
He first appears in the arcade version of Rival Schools: United By Fate in Akira's ending, and is first playable in the PlayStation port of the game.
A rich foreign exchange student from the United States, he is often portrayed in the games as main character Batsu's rival.
Tiffany makes a cameo appearance in Deadpool's ending in Ultimate Marvel vs. Capcom 3, where she can be seen asking for his autograph after he kills Galactus.
Tiffany makes another cameo appearance in the background of the Kanzuki Beach stage and Akira's character episode in Street Fighter V. Boman Delgado (ボーマン・デルガド, Bōman Derugado) is a student from Pacific High from the United States.
In Rival Schools, Boman joins Roy and Tiffany in their investigation of the kidnappings, albeit reluctantly due to his non-violent nature.
In Project Justice, Boman is the central character of the Pacific High story, having set out to find the person responsible for disrupting an inter-school athletic competition.
In story mode, Hideo is playable in the Justice High School, with the ending showing him hospitalized from the investigation (although a specific explanation to why is never given).
Outside the Rival Schools games, Hideo appears alongside Kyoko as playable characters in the cross-over strategy RPG Namco × Capcom.
In her ending in the game, the values she gains from the ordeal moves her to convict a former employer for corruption, and she eventually accepts Hideo's marriage proposal.
An attack on him by Kurow is the catalyst for the events of the game's story, and he also makes an appearance in the Taiyo High story mode, where he revealed the evil spirit who possessed Hyo is his late-brother, Mugen Iwamano; then last seen in Teacher Tean/Justice High ending, where he slept at the same hospital room next to Hideo's hospital bed, and overhearing a marriage plan between both Hideo and Kyoko.
Revealed through the player meeting certain requirements during a fight with Raizo, Hyo is shown as the mastermind behind the events of the game's story, with his goal to take over Japan.
In most of the game's Story Mode, he initially appears to defeat Kurow Kirishima, who had been shown brainwashing Hyo earlier in the storyline.
The in-game story establishes her as childhood friends with Hinata Wakaba and Natsu Ayuhara, and states her to be a student from Tamagawa-Minami High (in the Street Fighter games, it was never specified in which school she studied).
Zaki appears alongside Yurika and Akira in the Street Fighter: Back To School Special comic where she fights against Ibuki from the opposite franchise.
His actions include either attacking various groups of students with his lackeys - his sister Yurika, Momo, and a brainwashed Daigo - or having them do his dirty work for him.
A bonus storyline available in Project Justice, the Darkside Student Council, tells an alternate story in which Kurow's plans to take over the various schools succeeds.
The ending for this story has him at the head of Justice High School, shown with the various characters of the series as his brainwashed servants, including his own sister.