Arm Cannon
RO ArmCannon
Usable by
Job Class Mechanic
Type Offensive
Category Ranged
Levels 3 (Selectable)
Cast Time 0.8 - (Skill Level * 0.2) seconds (fixed) + 1.2 + (Skill Level * 0.2) seconds (var)
Cooldown 0.5 * (2)^(Skill Level - 1) seconds
Other Information
Requirements Flame Launcher Lv. 2, Cold Shower Lv. 2

Arm Cannon fires upon the enemy using a large cannon mounted on the Magic Gear's arm. Damage decreases as the enemy's size becomes larger. Consumes a Magic Gear Fuel.


  • Requires the player to be in a Magic Gear.
  • Each damage modifier is affected by Base Level:
    • Lv100 ~ 120 = 83.3% ~ 100%
    • Lv120 ~ 150 = 100% ~ 120%
  • This skill ignores FLEE.
  • Cast Time is uninterruptable.
  • This attack is Pseudo-elemental, which means the damage will increase if using an appropriate Cannon Ball but it's still reduced by Ghost property.
  • This attack counts as a physical attack despite being a projectile, therefore it will proc gear such as the Rideword Hat and the Nidhoggr's Shadow Garb.
  • In some situations, lower levels of Arm Cannon may be preferable due to the increased Area of Effect and faster Cast Time & Delay. It's often worth considering which is more efficient before any serious leveling attempts.
  • This skill has two damage parts:
  • Can acquire weapon's Element and has damage penalty dependent of Enemy Size and Type of Weapon used, also enemy DEF is just subtracted from this part o damage.

External links