M88/WORST

The M88/WORST is an enemy in Xenoblade Chronicles that are members of the Mechon family. They can be found at level 59 in several areas of the Central Factory, including the ramp from Landing Strip 1 to floor 1F, the north end of floor 1F, the Maintenance Wing, and the upper level between the Tower Boarding Gate and the Face Maintenance Bay. They can also drop the Reinforced Plungers, which are needed for the "Best Boots" quest.

Chests rates

 * Wood = 80.4%
 * Silver = 17.6%
 * Gold = 2%

Wood

 * Materials
 * Fine Part L - 73.7%
 * Reinforced Plunger - 26.3%

Silver

 * Cylinders
 * Buff Time Plus IV - 29.4%
 * Chill Defence IV - 29.4%
 * Weapons
 * Machina Sword II - 6.1%
 * Machina Biter II - 4.9%
 * Machina Guarder II - 4.5%
 * Jack Daggers]] - 2.1%
 * Armors
 * Retrieved Gear - 7.8%
 * Retrieved Gauntlets - 6.5%
 * F Speed Goggles - 5.2%
 * Taurus Plate - 3.9%

Gold

 * Weapons
 * Machina Guarder II - 13.3%
 * Machina Biter II - 6.7%
 * Unique Weapons
 * Machina Driver II - 13.3%
 * Machina Rifle II - 6.7%
 * Unique Armors
 * Charge Gear - 17.2%
 * Lord Leggings - 14.4%
 * Agrius Plate - 9.7%
 * Ruby Glasses - 8.7%
 * Advanced Books
 * Drive Boost - 4.6%
 * Battle Soul - 3.1%
 * Sneaky - 1.6%
 * Summon Aqua - 0.7%