Unlock an Extra by collecting the respective Red Power Brick.
Super Story, Character Bonus, and Minikit Bonus for each Episode.
Every level has four: Beat it in Story Mode, earn True Jedi Status for Story Mode, earn True Jedi Status for Free Play Mode, and complete the Minikit.
Unlock the Bounty Hunter Missions by unlocking Greedo, Boba Fett, IG-88, 4-LOM, Dengar, and Bossk.
Unlock other characters by completing the required level and purchase them in the Cantina.
Unlock a Bonus Door by beating all the levels in the Episode.
Unlock the Return of the Jedi door by completing Secret Plans.
Unlock the The Empire Strikes Back door by completing Secret Plans.
100.0% is indiscernible in this game because there is no counter, but the logical thing to do would be to buy everything, get all True Jedi Statuses, and complete all the Minikits.
Unlock other characters by completing the required level and purchase them in the Diner.
Unlock a character by playing as him/her in Story Mode.
Unlock Free Play Mode for a Level by completing it in Story Mode.
Complete a normal Minikit by collecting all 10 Canisters in the respective level.
Complete the Super-Kit by collecting True Jedi Status on all levels.
Unlock the A New Hope door by completing the Super-Kit.
Unlock the Revenge of the Sith door by completing Negotiations.
Unlock the Attack of the Clones door by completing Negotiations.