Gaurd Scorpion: In your first major battle, have Cloud use his Bolt Magic while Barett uses his standard attack. After sustaining a predetermined amount of damage, the Gaurd Scorpion will raise its tail. At this point, Cloud will tell Barett about the Gaurd Scorpion's tail laser. While the arthropod has its tail raised, do not attack. Use this opportunity to heal both Cloud and Barett. The Gaurd Scorpion will not attack with its tail laser if it isn't provoked while it's tail is raised. Once the tail lowers, resume your attack. Upon the Gaurd Scorpion's defeat, do not forget to equiped Barett with the Assault Gun.