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For the non-story variant, see Mechon M31 (normal).

Mechon M31 are two Mechon story exclusive enemies in Xenoblade Chronicles. They only appear at level 4 in Colony 9. They are fought by Shulk and Reyn during the first round of the second story event battle at Central Plaza. Contrary to the normal Mechon M31, they will not respawn and not drop a Treasure Chest.

They are capable of hovering above the ground. They are Sight Monsters that attack upon seeing the party. Mechon M31 are first seen in Colony 9 during the Mechon raid. They are defeated and driven off along with the others when Metal Face flees. They appear in other areas acting as flying sentries.



Art Attribute Multiplier Hits Range Effect Knockback Blowdown/Daze
Energy ShotEther1.05-1.251Single---


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

※ Except under certain conditions


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


Mechon M31

Mechon M31

Sharing their kindred's design, Mechon M31 are blue-and-gold plated monsters that hover using a single propeller. They have a single red "eye" and almost resemble a banana-shaped telescope. They have a single spear-like appendage beneath their eye.


In general, Mechon M31 share their species' abilities and resistances to conventional weaponry. Similarly, they are weak to the Monado and any weapons enchanted by the Monado. They are able to use the Enemy Art Energy Shot.

Due to being airborne their Hit Points and Defences are low but they are very fast enemies that can attack from distance thanks to their Energy Shot ability.


Whilst not encountered by the party, one Mechon M31 is seen just as Shulk and Reyn make their way to the Bionis' Knee before fleeing to Colony 6. It is presumably the Mechon that informs Xord of the Monado's approach.

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