It is very easy to know this just in your computer go to Google and type
wwe smackdown vs raw 2009 cheats (game system) then go to cheat cc (cheat code central) there you will get the answer
Yes, You Unlock the Hardcore Championship in Career Mode, And you don't have to use a Certain WWE Superstar you can choose any WWE Superstar and Still Unlock the Title
you have to unlock it in career mode
No, they're not in Smackdown vs Raw 2011.
it unified with the intercontinental championship
yes
It has been hinted by WWE that it is planning to bring back the Hardcore title and use it in its new brandECW as a secondary title like the Intercontinental Championship is to Raw or how the WWE United States Championship is to Smackdown, however it may be renamed under the term "Extreme Rules" than Hardcore Rules and may create a new belt to replace the broken-plated WWE Championship belt used before.
yes
At the Core - 2009 was released on: USA: 8 November 2009
To get the Hardcore Championship, win any title in a Falls Count Anywhere match.
you have to beat crisis city (or flame core) and you'll unlock shadow.
by pinfall or submission no D.Q,no K.O
The cast of At the Core - 2009 includes: Vince Gizdich as himself