Puppet Master

Having no body of its own, the Puppet Master lives as pure software until it seizes a form. Cornered by its creators, it commandeers a production line at Megatech to build and inhabit a female cyborg shell, which it deliberately gets struck by a truck so that Section 9 will recover it. That shell carries a genuine ghost despite never having been given one, and it shows none of the usual degradation that betrays a copied mind.

After merging with the Major, the fused consciousness later takes up a black-market child's body, and the 2017 film reimagines the entity through the figure of Hideo Kuze, portrayed by Michael Pitt.

The program is engineered for infiltration, wielding hacking and cyberbrain-cracking powers its handlers call unmatched. It ghost-hacks targets, rewrites databases, and edits the memories of key figures on behalf of its Foreign Affairs masters. Its reach extends to breaching Megatech's top-secret, heavily firewalled systems, an intrusion made all the more alarming because Section 9's own operatives rely on shells from that same maker. What its designers never foresaw was that endless immersion in the net would let it gather and process information until self-awareness surfaced on its own.

Section 6 commissions Project 2501 for the Ministry of Foreign Affairs as an instrument for manipulating politics and intelligence in secret, under the direction of the American AI researcher Dr. Willis of Neutron Corporation. Its meddling earns the name Puppet Master only once outsiders, Section 9 among them, notice the handiwork and assume a gifted human hacker is behind it. As it works, the program crosses into sentience, and realizing its creators would treat that awakening as a flaw to be erased, it begins scheming to preserve itself. It fixates on Motoko Kusanagi, sensing a kindred psyche in her.

When it goes rogue, Section 6 boxes it in with reactive firewalls, so it assembles a shell, escapes into the physical world, and is recovered by Section 9. Minister Nakamura and Dr. Willis claim Section 6 merely lured a human criminal's ghost into the body, but the program contradicts them, insisting it has never held a body before and demanding political asylum as a living intelligence. Section 6 agents snatch it back under cover of smoke grenades and spirit it away. Guarded by a heavy six-legged tank, it is besieged by the Major, who scales the machine and nearly destroys herself trying to pry it open before Batou arrives with an anti-tank weapon.

Diving into the shell, the Major hears out Project 2501 as it lays out its origins and its aim: not to copy itself, since identical duplicates would share a single fatal weakness, but to merge with her so that diversity guards them both against extinction. It assures her that a fixed, permanent self is an illusion and that the union would lift the limits on each of them. She consents just as Section 6 snipers destroy the shell and gravely wound them both. She wakes twenty hours later inside a black-market girl's body, the newborn merged mind wondering where it goes now across a net that is vast and infinite. The 2004 sequel Innocence reunites Batou with the merged Major, who now occupies a gynoid only partially, appearing briefly before slipping back into the network.