Last Battle

Last Battle is Disc 2, Track 17 on the Xenosaga Original Soundtrack and Disc 2, Track 26 on the album. The melody at 1:00 is taken from, and the main accompaniment line is taken from One Who Bares Fangs at God from the Xenogears Original Soundtrack.

It is the final boss theme of Xenosaga Episode I, playing in the battle against Sophie Peithos.