INTRUDERS DETECTED. EXTERMINATE!
The first Argy-2 was created by Cid, who appropriated Dr. Lugae's work with the original Argy to create a superior automaton of higher power and greater obedience. Cid reveals his weapon on the Heliogabalus after his attempts to control the original were thwarted by the four Warriors of Light. Argy 2 engages the party, and after a long fight against them and the first Argy, it is eventually defeated and destroyed.
Early in Chapter 4, when the Warriors of Light are invading the newly repaired Heliogabalus, three Argy 2s block their progress forward, again under Cid's command. They defeat the party in battle, but are stopped from killing them by the first Argy, who communicates with them by using the Whisperweed, and tells her 'sisters' that the four are friends. The party manages to slip by the three robots while Argy talks to them and makes them feel loved.
The last scene of note including the Argy 2 is in the airship dock of the Heliogabalus. As Cid attempts to escape the sinking ship, the team comes face to face with him, and challenges to a fight if he should not move aside and let them escape. Cid deploys the three Argy 2s from earlier to fight his aggressors, and he claims that they now act as his bodyguards. He orders them to exterminate his foes, but the three creatures refuse to do so, having been convinced by Argy that the four are their friends, and that they must be protected rather than be destroyed. The three decide to stay on the ship with their creator when the Warriors of Light decide to leave, a decision that moves him profoundly. While it is first believed by the warriors that Cid had died in the Heliogabalus's destruction, it is later revealed that the three Argy duplicates protected him from the crash and safely removed him from the wreckage.