Bionis is a white, almost grey, god that resembles a slim warrior. Similar to Mechonis, it wields a sword and has various protrusions on its body. Bionis' face is more humanoid than Mechonis', but does not possess a noticeable mouth.
Zanza is the soul of the Bionis and Meyneth's equal. He existed before the creation of the game's universe. Long before the events of the game, Zanza possesses a Giant from Bionis, who is subsequently confined by the High Entia on Prison Island. He reveals himself to be the creator of the Monado to Shulk and his party.