For those who have not completed Xenoblade Chronicles, this page or section may contain spoilers regarding the plot. Discretion is advised.
Irregular Bound (イレギュラーバウンド) is a Field Track in Xenoblade Chronicles, composed and arranged by ACE+. It is track 19 of disc 4 from the Xenoblade Original Soundtrack. This music is heard whenever an enemy initiates a battle against the party in the Mechonis areas of the game: Galahad Fortress, Fallen Arm, Mechonis Field, Central Factory, and Agniratha. It may also be heard in Sword Valley after the party has already reached Galahad Fortress. This theme is meant to incite the player to either fight or escape.