Instructions
Start "LEGO Star Wars: The Complete Saga," and load your save file.
Begin the first level, and earn enough studs to attain True Jedi status. Find all of the mini-kits in the level as well. Repeat this process on all of the levels in the game, and for all three of the episodes.
Once you have finished the tasks in Step 2, unlock the Question Mark door. You will gain access to LEGO City, which you can destroy for extra studs and points.