Return to Castle Wolfenstein: Operation Resurrection Cheats (PlayStation 2)

In the first level, there is a nifty little wine cellar with some wine that you can...
appropriate for your own purposes.  Kill the German guards before you steal the wine
(always a good idea).  Near the entrance there are two large barrels.  Go between them
and push in the brick.  This will open up the wall on the other side of the cellar. 
Shoot out the glass and grab the wine, which you can drink to heal yourself whenever you
want to.