"Battle to the Death" plays during the two encounters with Cloud of Darkness. This theme was released in the Original Sound Version album as the forty-third track. "Battle to the Death" was remastered for the game's 3D remake and released as "Last Battle." However, two versions of the theme's intro were added to be used in cutscenes featuring the Cloud of Darkness, while "Last Battle -3-" is the theme used in the battle against the entity. "Last Battle -1-" to "Last Battle -3-" are the fifty-fourth to fifty-sixth tracks of the original soundtrack.