Well, I even got the multilanguage (German) version xD
There is a difference between banned and forbidden games:
the banned games are on the index list A of "media hazardous for the youth" and must not get advertised and are only sold to adults (like this one). Then we have the list B with forbidden media (e.g. Manhunt). Owning these games is legal, but selling/giving it to other persons is illegal and the media disks are seized from all stores.
Back to this game: it is not well known in Germany, but Left4Dead is (and it's also banned). ...and COD MW2 (US PS3/Xbox360 version) is forbidden.