Emerald Weapon is a superboss in the North American, PAL and International versions of Final Fantasy VII, and one of the toughest of the five Weapons (the others are Ultimate, Diamond, Ruby, and the non-battled Sapphire). Emerald Weapon is released when Sephiroth summons Meteor; Weapons are awakened when the Planet is under grave threat, to work as its protectors. Emerald Weapon is one of the two superbosses in the game, along with Ruby Weapon.