KOS-MOS (Kosmos Obey Strategical Multiple Operation Systems) is an armored gynoid and the main character in the Xenosaga series. Developed by Vector Industries and created by Kevin Winnicot to hold the soul of Mary Magdalene, her main goal is as a Special Humanoid Anti-Gnosis Annihilation Weapon.
She has cameo appearances as a playable character in Namco x Capcom, Super Robot Taisen OG Saga: Endless Frontier, Tales of Hearts, Mugen no Frontier: Super Robot Taisen OG Saga EXCEED, Project X Zone, and SoulCalibur III.