[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/his_silicon_soul_title_card.png]]
Batman faces the last remaining H.A.R.D.A.C. robot, a Batman duplicate, who believes himself to be the real Batman.

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!!Tropes in this episode include:

* AIIsACrapshoot: A rare case where this benefits the hero (and humanity as a whole). The android rejects its programming, which in effect, utterly vanquishes H.A.R.D.A.C. (Sadly, the android [[DrivenToSuicide destroys itself]] as a result.)
* ArtificialIntelligence: H.A.R.D.A.C. and the replicant Batman show this.
* BatmanGambit: Batman made his android copy think it killed him, to see if it would trigger Batman's own feelings against killing in the android.
* BigNo: Hollered by the android Batman when it thinks it killed the real one.
* BittersweetEnding: Humanity is saved and the threat of H.A.R.D.A.C. is gone forever. Sadly, the android has a HeelRealization just before this happens, leading it to be DrivenToSuicide, and his death could have been avoided.
* CallToAgriculture: Karl Rossum briefly takes up farming after the disaster of the H.A.R.D.A.C. program. He eventually does return to the robotics business full-time.
* ChaseFight: The android Batman and the real Batman engage in this at the climax.
* CloneAngst: The first half of the episode has the Batman duplicate believing it's actually the real Batman who's had his mind uploaded into a robot. It becomes rather grief-stricken upon learning it was never human to begin with.
* CopiedTheMoralsToo: The Batman duplicate is such a good copy that it also has Batman's moral code, including ThouShaltNotKill, which destroys any chance of it implementing the KillAndReplace plan that H.A.R.D.A.C. was trying to implement.
* DeceptivelyHumanRobots: Subverted. The Batman robot starts out as a deceptively human robot, but becomes a RidiculouslyHumanRobot over the course of the episode. So human, in fact, that it sacrifices itself to prevent the scheme it has set in motion from hurting people. Because like the real Batman, the robot copy [[ThouShaltNotKill is unwilling to kill, ever]].
* DoAndroidsDream:
-->'''Bruce:''' It seems it was more than wires and microchips after all. Could it be it had a soul, Alfred? A [[TitleDrop soul of silicon]], but a soul nonetheless?
* DrivenToSuicide: The duplicant Batman, believing it has killed the real Batman, destroys the Batcave computer before it can finish uploading the H.A.R.D.A.C. program, knowing the resulting explosion will kill it.
* GoneHorriblyRight: H.A.R.D.A.C. wanted his robotic replacement for Batman to be utterly indistinguishable from the real one. As it turns out, he did so by genuinely replicating his personality--and morals.
* HeartDrive: A single piece of H.A.R.D.A.C. serves as a backup for his entire programming.
* HoistByHisOwnPetard: H.A.R.D.A.C. created a duplicate Batman [[GoneHorriblyRight all too well]].
* {{Homage}}: The episode has the premise of ''Film/BladeRunner'', with Batman's replicant believing it is Batman.
* ItIsDehumanizing: Bruce calls his android duplicate as "it" even when questioning whether the android had a soul.
* KillAndReplace: H.A.R.D.A.C.'s final creation, a robotic duplicate of Bruce Wayne/Batman, activates long after its initial defeat. The duplicate lacks a complete memory file, and thus believes itself to be the ''real'' Batman until it learns otherwise. It then begins trying to carry on H.A.R.D.A.C.'s mission by eliminating Batman and replacing him. Turns out, H.A.R.D.A.C. did ''[[GoneHorriblyRight too good a job]]'' copying Bruce Wayne's mind, and the robotic duplicate can't handle the guilt of thinking it has actually killed a human being (Batman is actually OK though), and self-terminates.
* KilledOffForReal: The last remnant of H.A.R.D.A.C. is gone forever.
* KnockoutGas: After escaping into the Batcave and running down to the Bat Computer, Alfred attempts to use this on the duplicant, but being a robot, it is immune. The duplicant removes Alfred's air filter mask once it catches up to him, knocking Alfred out.
* MythologyGag: At one point, the Robot Batman’s face is partially burnt off by a vial of acid, much like the classic Two-Face origin.
* MyGodWhatHaveIDone: The Batman robot, having absorbed the original's [[ThouShaltNotKill moral principles]] along with his basic knowledge, is horrified when it thinks that it killed Batman. He freaks out and destroys the computer, causing an explosion that destroys himself and H.A.R.D.A.C.'s last remains.
* OhCrap: Alfred gets this upon seeing the Batman robot's circuitry and realizing it's a duplicate.
* RedEyesTakeWarning: The Batman duplicant's eyes turn red for the latter half of the episode to distinguish it from the original. Upon its HeelFaceTurn, they return to being white.
* RidiculouslyHumanRobot: In fact, that was H.A.R.D.A.C.'s flaw here. He made the duplicate ''too'' human.
* RobotMe: A robot Batman in this case.
* RoboticReveal: Batman is shot by a thug. The thug is rather surprised, not because he managed to shoot Batman, but because he sees its circuitry.
* SequelEpisode: To "[[Recap/BatmanTheAnimatedSeriesE38HeartOfSteelPart1 Heart of Steel]]."
* ShoutOut:
** Like in "Heart of Steel," the android's face is partially destroyed, showing its metallic skull underneath, very similar to the ''Franchise/{{Terminator}}''.
** Karl Rossum's name is a reference to the science-fiction play that first coined the word robot, ''[[Theatre/{{RUR}} Rossum's Universal Robots]]''.
* ThouShaltNotKill: The robot copy of Batman that H.A.R.D.A.C. created in a final attempt to gain revenge on Batman and KillAllHumans follows his human template's example all too well. The robot has a HeroicBSOD when it thinks it killed Batman during their fight and sacrifices itself to foil the scheme it had earlier set in motion when it realizes more people will die because of it.
* TitleDrop: Spoken by Batman at the end. (See DoAndroidsDream above.)
* WhatMeasureIsANonHuman: Discussed. When a robotic Batman (mistakenly) thinks that he has killed the real Batman, he becomes so horrified that he commits suicide. Batman later reflects on this, and wonders if the robot could have had a soul.

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