Kôjiro Shimizu

Bison, the ruthless leader of the international terrorist organization Shadowlaw, has been desperately... (imdb)

When the white-suited don of the Osaka mob takes a short prison vacation, his regal, kimono-clad wife Shima Iwashita takes over the gang. Her first priority is to arrange the marriage of rebellious younger sister Rino Katase to a man outside the mob... (KG)

Miike's take on Fukasaku Kinji's Jingi Naki Tatakai series! Seventeen year old Tetsuya kills the boss of a rival gang with the promise of being made. After seven years of prison, he discovers that he is all but forgotten by his Family. The two rival Families have reconciled and Tetsuya was been discarded to keep the peace. Wanted what he was promised, Tetsuya becomes a one-man path of destruction. (Surreal Moviez)

A sequel in name only, Ambition Without Honor 2 follows Tetsuya, a young yakuza, who returns to his family after his adoptive father is wounded in an attack from a rival gang. In his battle against dishonorable enemies and corrupt yakuza politics, he makes an unlikely ally in a rebel cop . (letterboxd.com)

Vision Sugimoto in 1995 under the title " 82 (crocodile) branch office ".

Third part in the yakuza series.

If your girl or boy attends Bee Bop High School it is time to seek out alternatives. The boys and girls are uniformed and sport 1950s' 1950s-style sleek hair and features, but the educational institution has more to do with A Clockwork Orange than Degrassi High. The students fight, brawl, get bloodied, and are not all too polite to the dames either. Bulk up on the bandage and...

A sly prep school thug uses his girlfriend to lure Hiroshi and Toru to a fight, but the scheme escalates to an all-out war between everyone involved.

College student Mayumi takes a mutual interest in Hiroshi, but their happiness is cut short when two thugs expelled from school eye the new couple.

Teen thugs Hiroshi and Toru get caught in a street war when their prized school trousers are forcefully taken from them by punks from a rival school.

With thugs under gang leader Shingo attempting to make a name for themselves, Toru and crew must brace for an all-out war between their two schools.

A heated argument between middle school thugs leads to a fierce war between two rival high schools when Toru's girlfriend, Shoko, gets involved.

A detective and his partner track down a call girl with information about a drug cartel. After taking her into custody, they are attacked by cartel members. The detective and the woman manage to escape, but they are soon hounded by a professional hitman hired to eliminate them and recover the heroin stolen by the woman.

A boy seeks manhood by joining his school’s militaristic cheer squad.