Ex Machina: Minerva (自動人形・ミネルヴァ,Ekusu Makina: Mineruva, JP Automatic Doll: Minerva, LA From Machine: Minerva) was an automaton with the Idea Engine equipped. Her power source was a miniaturized reactive furnace (反応炉,hannō ro) created by gathering and combining the energy in all the reactive weapons in the world Kokonoe Mercury could find.
On BlazBlue: Chronophantasma Extend character select artwork, Minerva has marks on her helmet and her additional arms. The one on her helmet says: "Embryo Storage Unit No. 03", while marks on her arms say: "Es No. 03".