KOS-MOS has a friend from the Xenosaga universe in Super Robot Taisen OG Saga: Endless Frontier Exceed. No, not T-elos. M.O.M.O., dressed in her Xenosaga III outfit, is also in the game.
She’s a support character for KOS-MOS. M.O.M.O. has two attacks, an ether bow blast and star wand mode where she transforms.
This week’s issue of Famitsu reveals other very familiar support characters from the previous game. Remember Anne, Dorothy, and Koma?