I'm back with this cool game. I finished the game 3 times. OK, here how it goes: If your at Death Star (last mission), and after you defeated Lord Vader, you can see The Emperor and Darth Vader. Attack The Emperor, you will save your friends, you get to die and get The Ceremonial Jedi Robes. Attack Vader, all your friends dead, you and The Emperor survived, You will become the new Sith Lord and you will get Sith Stalker Armor.

Tip: Don't use any special characters like Juno Eclipse or Anakin Skywalker, to see the cutscenes.