Atropos XR

Atropos XR is an enemy robot found in 2300 A.D. in Chrono Trigger.

Geno Dome
While fighting their way through Geno Dome, Crono's party runs into Atropos XR, a female version of Robo's droid model. She explains that the humans reprogrammed him from his original programming...kill humans. Robo refuses to believe it and wants to fight her. After Robo wins the battle, Atropos' memory slowly comes back. She then realizes that Mother Brain overrode her programming to make her kill humans.