Shield Down is an achievement that requires you to land the finishing blow on a Shieldbug. This achievement is repeatable.


  • You'll meet your first Shieldbug in Deima Surface Bridge, but they're most numerous in Sewer Junction.
  • While the Shieldbug is distracted by another marine, swing behind it and fire at its glowing bulbous appendage with your most powerful weapon or explosives.
  • The Grenade Launcher is particularly effective at killing Shieldbugs, since you can fire grenades over its armored limbs directly behind it.

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