From Final Fantasy Wiki

Quistis Trepe using Gatling Gun on a Grat.

Gatling Gun is a Blue Magic spell in Final Fantasy VIII. It deals non-elemental damage to all enemies, and is learned by using a Running Fire item on Quistis. The item can be obtained by using the refinement ability "Card Mod" on a SAM08G card after winning it from an Iron Giant, SAM08G, or the boss BGH251F2; or by mugging an SAM08G. It is also the only physical damaging spell that Quistis can learn. Its physical Attack power differs from Crisis Levels.

• Crisis Level 1: 60
• Crisis Level 2: 80
• Crisis Level 3: 100
• Crisis Level 4: 120