After having Hitman: Codename 47 on PC I wasnt really looking forward to this title, but soon after I bought it I couldnt stop playing it. Getting Silent Assassin on every one of the 20 missions will have you repeating levels to get a better rank and for a bit of a challenge take on the hardest skill and do whatever you have to do to get the job done. The games only flaw is that it doesnt have a multiplayer (but not a very big flaw ;).