The major difference between Kenzan and prior Yakuza/Ryu ga Gotoku games is that the game is set in the Edo period of Japan, in 1605, and is primarily focused on sword play rather than hand-to-hand combat.
A special PS3 bundle (PlayStation3 "Ryu ga Gotoku Kenzan!" Pack, PLAYSTATION3『龍が如く 見参！』パック) containing the game was also released. It contained a "サテン・シルバー" ("Satin Silver"?) PS3 with a 40GB hard drive, a special jacket for the game case, and a sticker sheet.
Also known as
Ryu ga Gotoku Kenzan! (龍が如く見参！)
용과 같이 켄잔!
This article needs a list of production credits, either from the game itself, a manual, or other reliable source.