A barrage, or danmaku is a set of projectiles fired by ships upon triggering either a set number of shots from the Main Gun or by activating a skill. Aside from adding supplementary damage, some barrages may provide debuff effects such as burn, slow, flood, etc. Barrages are affected by 100% Firepower, Torpedo or Airpower stat respectively unless otherwise stated, but are not affected by weapon efficiencies. Gun-based barrages are upgraded via Limit Break while skill-based barrages are upgraded by spending Skill Books in the Academy.