A larger fight scene with Exar Kun and young Obi-Wan Kenobi

Once a young and ambitious Jedi studying under Master Vodo-Siosk Baas, Exar Kun was lured to the dark side of the Force. After turning away from the teachings of his master, Kun gathered armies of followers and initiated a campaign to exterminate the Jedi Knights, with the ultimate intention of conquering the Republic.

As the battle against the Jedi escalated, Kun altered his normal lightsaber into a more deadly and dangerous weapon. Kun added a second emitter matrix on the opposite end of the hand grip, allowing him to release two blue-white blades simultaneously. The dark Jedi wielded the saber much as he would a quarterstaff, using one blade to block incoming attacks, then quickly spinning the handgrip to use the second blade to stirke a killing blow against his opponent.

Customized controls allowed him to adjust each blade's length from half a meter to one and a half meters. Panels controlled each blade's intensity: at its highest setting, a blade was like any other lightsaber, with the ability to cut through dense materials such as armor plating and durasteel with virtually no resistance. At the lowest power setting the blade bacame a simple shaft of light, delivering no damage and providing no resistance to incoming lightsaber attacks. By abruptly shortening a blade or dropping it to the lowest power setting, Kun tricked his opponents into over extending themselves during attacks, giving him an opportuinity for a deadly counterstrike. By coupling these tactics with his Forcs abilities to predict the actions of his opponents, Kun became virtually unstopable in combat.

Truly corrupted by the dark side of the force, Kun showed no mercy and his plan to exterminate the Jedi nearly succeded. He even dared to challenge Master Baas on the Republic Senate's floor, striking him down in front of the horrified senators and Jedi Knights.

However, Kun's reach was too great and his thirst for power too unquenchable for even him to control. One of his former disciples, the fallen Jedi Ulic Qel-Droma, turned on the Dark Lord of the Sith, leading the Republic to Kun's main fortress on Yavin Four. The jungle moon was devastated in the battle, and Exar Kun's twin-bladed lightsaber and numerous other artifacts were destroyed. Kun was thought dead. although his spirit later manifested itself after Luke Skywalker established his Jedi academy, or praxeum, in the Massassi ruins in the moon's surface.