Mother Brain (Chrono)

Mother Brain is an enemy computer program found in 2300 A.D. in Chrono Trigger.

Geno Dome
Crono's party heads to Geno Dome in 2300 A.D. where they find out that the Mother Brain has taken over the robots and intends on eliminating the remaining organic beings allowing the machines to rebuild the planet in her vision.

After a fight with Atropos XR, the party proceeds through the Dome and eventually defeats Mother Brain.