Aberrant clone The aberrant clones were genetically flawed duplicates of Galen Marek , a Human male who served as the secret apprentice of the Sith Lord Darth Vader . After Marek ' s death , Vader attempted to create a more powerful and obedient version of his fallen apprentice — a clone with all of Marek ' s skills and none of the emotional attachments that undermined his connection to the dark side of the Force . As a result of an imperfect cloning process , however , numerous clones were engineered and ultimately discarded due to their physical deformities and mental instability . The experiment was gradually corrected by the lead cloning technician while Vader endeavored to train the more stable clones using memory flash es of their template ' s life . By 1 BBY , hundreds of failures were secretly stored within the cloning facility of Timira City on the planet Kamino . By then , however , the Dark Lord of the Sith had finally succeeded in creating a stable clone of his deceased apprentice , although one renegade subject managed to escape Kamino after Vader deemed him to be another imperfect copy of Marek . The rogue clone returned to the Kaminoan homeworld during the Assault on Kamino where he was forced to confront several batches of the aberrant clones , many of whom had been confined to their cloning tanks in Timira City . Starkiller defeated all of the clones using a combination of his lightsaber skills and Force abilities , but the encounter with other versions of Marek ultimately had a profound psychological effect on him . Like Starkiller , the aberrant clones suffered from similar cases of identity crisis due to their inability to separate Marek ' s life from their own experiences . As such , Starkiller empathized with the clones he killed , an act which he also viewed as fratricide — even suicide — because they originated from the same genotype as him . History . Origin . The aberrant clones came into existence as a result of clandestine project to replicate the late Galen Marek , the former Sith apprentice of the Sith Lord Darth Vader . Shortly after Marek sacrificed his own life in defense of the Rebel Alliance founders — senators Mon Mothma , Garm Bel Iblis , Bail Prestor Organa and Jedi Master Rahm Kota — Vader transported the apprentice ' s body to the planet Kamino , intending to preserve the corpse as a template from which the required DNA samples for cloning would be harvested . Many obstacles hindered the project ' s success rate , however . First , the Dark Lord ' s scientists resorted to using the accelerated cloning process , an experimental procedure that produced full - grown subjects in under a few weeks ; the drawback being that all clones bred through this process would inevitably succumb to madness due to their rushed growth cycle . Another dilemma that confounded the cloning technicians was the Force itself . By then , it had long been believed that clones could not be successfully created from Force - sensitive templates . There was no definitive explanation for this phenomenon , but Ni - Ke - Vanz theorized that the Force inherently hindered the cloning process . The third and most problematic obstacle was memory . In order for the new apprentice to utilize his inherent Force powers and combat skills , Marek ' s memories would have to be imprinted on his replacement ' s own brain , thus transferring his knowledge and experience to his clone . But through this , the clone would also develop an identity crisis as a result of possessing the memories and emotions of another person . Despite these obstacles , Darth Vader proceeded with his plans and the initial results produced a batch of hundreds of aberrant clones , all physically deformed and mentally unstable , and none of whom were considered successful by Vader ' s standards or his lead cloning technician . The aberrant clones were put into suspended animation within their cloning tank s ; the mistakes in their design would be gradually corrected , resulting in less flawed clones . Meanwhile , Vader personally trained several promising test subjects in the hopes that at least one clone would prove sufficient enough to become his new apprentice . Fratricide . After months of failed attempts , the project was finally deemed a success when a single clone succeeded where all of his predecessors failed — he overcame the memory imprints of Galen Marek . By compartmentalizing and isolating Marek ' s memories , he was able to differentiate his progenitor ' s thoughts from his own . Around the same time , another clone had nearly succeeded in his own trials , only to disappoint Darth Vader when he failed to overcome his ingrained attachment to Captain Juno Eclipse , a trait that his successful counterpart also inherited but later suppressed . Realizing that he would be disposed of as a failed test subject , the renegade clone managed to escape from Kamino , but later returned at the head of the Rebel Fleet in order to rescue Captain Eclipse . Just as the fighting began , Boba Fett — a cloned bounty hunter hired by Darth Vader — encountered a lone aberrant clone who was armed with a red - bladed lightsaber . Driven by a sense of mindless rage , the clone attacked and nearly killed Fett , only to be killed when Fett desperately launched a missile from his Z - 6 jetpack at the clone . During the fighting , the renegade clone — by then referred to as " Starkiller , " the former codename of his template — infiltrated Timira City where he was confronted by Darth Vader and the aberrant clones . Until this point , Starkiller did not believe that there had been other clones before him . The sight of his " brothers , " however imperfect , forced him to confront what he had believed from the start — he was a clone and the original Starkiller had perished , just as Vader had told him . In the aberrant clones , the only emotions he sensed were hate , rage and an overwhelming desire to kill . Yet they also exhibited confusion ; they were all equally confused over their own identities . While defending himself against the clones , Starkiller took time to study his precursors . He noted that the first wave to attack him were the weakest and easiest to kill ; the second group was cautious enough to keep their distance from their target who was armed with dual lightsabers . The last waves included clones who wielded Force lightning , and those armed and trained in lightsaber combat . Despite the fact that they too possessed Marek ' s Force sensitivity , none of them could defeat the renegade clone in open battle . The ones who rushed at him were cut down , others were overpowered by his own command of the Force , and the rest attacked each other due to their unstable minds . As the Assault on Kamino concluded with a decisive Rebel victory , Starkiller successfully rescued Juno Eclipse and defeated Darth Vader , who was then taken into Alliance custody . In spite of his success , Starkiller remained conflicted over his ordeal with the aberrant clones . Aside from their differences with him and each other , as clones they all possessed the same attributes as Galen Marek in greater or lesser degrees . As such , Starkiller came to struggle with his own guilt for killing the aberrant clones , an action which he considered to be a form of fratricide — even suicide , since they were all genetic copies of the same man . Powers and Abilities . Despite their many genetic flaws , the aberrant clones possessed Galen Marek ' s powerful affinity to the Force . But due to the psychological damage that they suffered in the cloning process , the clones would never be able to utilize Marek ' s abilities in a concentrated and focused way of combat . Since they were the first and most flawed versions of the clones , the genetically - inherited abilities of the original Starkiller were not evenly distributed among the aberrant clones . Some were more skilled at using Force attacks such as Force lightning and Force push . Other clones were equipped with dual lightsabers and specialized in the Jar ' Kai fighting style . All of the aberrant clones , however , were capable of shielding themselves from basic Force attacks , except for Mind Control . Naturally due to their imperfections , the abilities of the aberrant clones were greatly underdeveloped and inferior to their more stable clone brothers , Starkiller and the Dark Apprentice . Behind the scenes . In the Xbox / PC / PS3 versions of the game , the aberrant clones ' Lightsabers have silver crystals . In the Wii version , they are colored purple , red , or orange . These different colours can help the player identify which clone uses what technique . Red lightsaber clones are melee , purple ones use Force Lightning , and the orange ones use Force Push , as evidenced by how they break out of their tanks to attack Starkiller , by the sound of Force Repulse