aBOreSSs is a track in Xenoblade Chronicles X, composed and arranged by Hiroyuki Sawano. It is track eight of disc three from the Xenoblade X Original Soundtrack. The first half is heard during the battle against the Prog Ares piloted by Lao in Cauldros, while the second half is heard during the first battle against the Zu Pharg in Sylvalum. The first half is an arrangement of D91M with a faster tempo. The lowercase letters in the name spell "Ares", and the capital letters spell "Boss"