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For the normal variant, see Offensive Security Unit (normal).

The Offensive Security Unit is a story exclusive enemy in Xenoblade Chronicles. It is a Mechon, and can be found at level 52 at Ulna Passage on the Fallen Arm as part of a story event, not long after the party arrives on the Fallen Arm.

The Offensive Security Unit along with the Offensive Seeker Unit attack Shulk alone once the M83 Predator Unit and the two M54 Slayer Unit are defeated. They must be defeated by Sharla and Reyn joining Shulk. This variant does not carry or drop any treasure.

There is a normal variant at level 56 on the Fallen Arm. These Mechon can be found on the Connecting Bridge.



Art Attribute Multiplier Hits Range Effect Knockback Blowdown/Daze
Boost OneStatus---Strength Up--
Boost ThreeStatus---Strength Up--
DelayalStatus--Circle around casterSlow
Ether Down
Shield BashPhysical3.3 – 3.51-Daze--

† It has not yet been confirmed whether this enemy uses Boost One, Boost Three, Delayal and Shield Bash.


Break 70% Lock-On 0% Physical Def. ▼ 0% Agility ▼ 70%
Topple 0% Bind 70% Ether Def. ▼ 0% Aura Seal 0%
Daze 0% Paralysis 0% Strength ▼ 70% Arts Seal 70%
Sleep 70% Slow 0% Ether ▼ 70% Death 100%


This enemy drops no chests, and carries no items which can be stolen.

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