Barrage

Barrage, also known as X-Fight, Trigger Happy, Double Cut, Snot or Rapid Fire, is a recurring ability in the Final Fantasy series. Barrage usually allows a character to perform a physical attack more than once each turn. It is usually connected to the Ranger Job Class, and the Gunner Job Class in later games in the series.

Final Fantasy III
In the DS version, the Ranger's Barrage attacks four random targets at half damage.

Final Fantasy V
Rapid Fire is a level 4 ability for the Ranger job. It hits four random targets at half damage.

Final Fantasy VI
Equipping the Offering Relic allows for characters to use X-Fight. It hits four random targets at half damage. However, certain weapons, namely the Fixed Dice and the Valiant Knife ignore the damage penalty and deal full damage. By combining the Offering with the Genji Glove, a character can attack 8 times per turn.

Final Fantasy VII
The Double Cut Materia allows for characters to attack more than once. At level 1, characters can attack an enemy twice in one turn at full damage At level two, they attack four random enemies. The similar Slash-All Materia lets a character attack all enemies at once.

Final Fantasy VIII
Irvine Kinneas' Shot Limit Break allows the player to press R1 to fire several times against one enemy.

Final Fantasy X-2
The Gunner can make use of the Trigger Happy ability, which allows the player to press R1 to fire several shots in quick succession.

Final Fantasy XI
Barrage is a Ranger ability, available starting at level 30 and allows a ranger to output a lot of damage very quickly. The ability will randomly select a number of arrows between 2 and 5 and shoot them all together. Each arrow seems to work out its accuracy independently so any number of these attacks can actually hit, anywhere from all five to zero.

Arrows, unlike in other versions of Final Fantasy, are actual inventory items. This ability potentially can make a ranger run out of them rather quickly. The ability also creates a lot of enmity if all the hits are successful. It is, however, a very useful ability for Rangers to have in order to build TP quickly.

This ability can only be used once every five minutes.

Final Fantasy XII: Revenant Wings
Fran learns Barrage at level 45. Its power can be upgraded by equipping the Dueling Mask Accessory, which gives the Hunter's Monograph bonus.

Final Fantasy Tactics: The War of the Lions
Balthier's Sky Pirate job has the ability Barrage, which costs 1200 JP. It lets Balthier attack an enemy four times in a row for half damage.