I REALLY enjoyed this game when I picked up the import, "Ryu ga Gotoku". I heard the sales bombed pretty hard in the States under the title, "Yakuza", but..that's SEGA's wonderful *insert sarcasm here* marketing skills for you.
I honestly doubt we will see a state-side release for the second installment. That's kind of sad too, really. I played through the second one as well and absolutely loved it, just like the first. Now that we have the third installment coming out so soon, "Ryu ga Gotoku: Kenzan!" where you play the role of Miyamoto Musashi, still addressed as "Kazuma-san", this is a VERY different spin on what we are used to, but really nice nevertheless.
I actually got to play the demo of it recently by downloading both parts on my PS3 from the Playstation Store and the game is PHENOMENAL. Everything is so fluid and the graphics have been enhanced (naturally), and it takes everything we loved about the last two installments, but puts us in Feudal Japan, which is just awesome.
I can't wait for it to come out. There has been word from SEGA that we might be getting this for PS3 in the States though. Still a rumor and nothing concrete, but a "might" is better than nothing I suppose.
Anyway, yes..I prefer the import to Yakuza, but if you can find a copy of the game for relatively cheap, I would suggest picking it up. The game is a pretty nice beat em' up and if you can get past all the foul language, then you'll have lots of fun