STAR WARS Jedi Knight II: Jedi Outcast

The easiest way to do this is to load up your last save on Yavin Final, after you have gotten the trophy for beating the game, of course. You can also do this if you have a save nearest the end of any other Mission. Once the save is loaded up, pause to the menu and press to access the cheat menu. Turn on "Godmode" and then easily finish the Mission. The trophy should pop after the credits or after the Mission has finished.

Note: This is the only trophy that active cheats does not disable.