Darth Vader heard interrogating and torturing Leia on board his Star Destroyer and aboard the Death Star. Vader appears in "Star Tours – The Adventures Continue", where he is voiced by Jones. Vader is featured as a combatant in the popular series "Death Battle", in which he is pitted against Marvel Comics villain Doctor Doom. In "Attack of the Clones", Anakin Skywalker feels "smothered" by Obi-Wan Kenobi and is incapable of controlling his own life. By "Revenge of the Sith", however, his "father-son" friction with his master has matured into a more equal, brotherly relationship. Once he becomes Darth Vader, each evil
Star Wars: Episode III – Revenge of the Sith state to fight a Sith Lord. These are a few examples of many descriptions of characters' feelings and inner narrative. There are even some humorous lines added in, including extra dialogue in the battle between Grievous and Obi Wan - Grievous says, "I was trained by Count Dooku," and Obi-Wan replies, "What a coincidence; I trained the man who killed him." An official prequel novel, "Labyrinth of Evil" () by James Luceno, was published in 2005. It is set near the end of the Clone Wars and directly before the events of "Star Wars: Episode III Revenge of the Sith".