Two of them being his in 4 Akiyama, Saejima and Tanimura and the other playable characters in Dead Souls Akiyama again, Goda, Majima.
Moments where this is much harder to excuse such as blowing them up with a rocket launcher or throwing them off skyscrapers are typically just ignored.
To elaborate: the zombie outbreak on Kamurucho was kickstarted by Tetsuo Nikaido, the new head of the Omi Alliance and an old subordinate to Goda.
There's also the Volcano Video Slot Parlor which is more legal and also relies on a prize exchange system for the payoffs.
In a sidequest, Kiryu finds out that a couple of clowns have been shaking down goods and services from people by masquerading as him and his late buddy.
The following year saw the release of a prequel titled Ryu ga Gotoku 0: Chikai no Basho The Place of the Oath , once again for PS3 and PS4, scaling back from the fifth game, as it focused on the exploits of Kiryu and Majima during December of 1988 and showed how they became the people they are as of Yakuza 1.
Aired between October 5 and December 21, 2010 on the Tokyo Broadcasting System.
Said fighting style is also available as a job in Like a Dragon, meaning every male party member can bust out breakdancing moves.