Taking place in both the USA and Japan, Red Steel is a crime themed shooter that has the player-controlled Scott Monroe fighting off various members of the Yakuza clans in order to rescue his fiancée.
It features sword duels and gun fights using the Wiimote, to allow the player to swing the controller as they would swing a sword. The positioning and movement actions of the Wiimote also let the player aim their weapons almost as they would a real gun.
Not only must the player fight off many clan leaders, but the option is often given to spare lives of the enemy. This can lead to the player gaining more friends in the future, rather than more opponents if Scott is seen to be dishonorable.
It is up to Scott to hopefully gain allies and uncover the reasons for his financée's kidnapping.
In the real world, the Japanese organized crime community known as the Yakuza almost always go to a lot of trouble to cultivate the appearance of charitable, polite and reasonable businessmen. Since almost everybody does what that Yakuza members politely advise them to do, there is almost never any need for violence, and only a very small fraction of the Yakuza follow any kind of ultranationalist or other far-right ideology. Each Yakuza extended family has its leader, whose title is "Oyabun", or "elder brother," -- the same name is used to refer to the combat knife belonging to the character "47" in the Hitman franchise of games.
The term for the group itself derives from "ya-ku-sa", a losing combination of numbers rolled in gambling. This is left over from the fact in medieval times, Japan's military government tended to hire certain con artists who were among the forerunners of today's Yakuza. During times of economic depression, the con men would be sent to gamble with day laborers on public works projects. In exchange for a commission fee, the swindlers returned some of the government's money!