Non-canon warning: This article or section contains information that may not be considered an official part of the Metroid series in the overall storyline by Nintendo.
The Mk III Shield is a piece of Galactic Federation technology intended to appear in Metroid Prime 2: Echoes. It was likely to appear in or around the base created by GFMC Task Force Herakles. These barriers could likely be destroyed by the Charge Beam, Missiles or Power Bombs, making them little obstacle to Samus Aran. Scan data and a model for the MK III Shield can be found in the files of the Metroid Prime 2: Echoes Bonus Disc.
In the final game, the name GF Shield is used as an alternate name for GF Defense Shield when setting up the game's Data Network hierarchy. The scan itself however, is not present during normal gameplay.[1]
Logbook entry[]
Mk III Shield
Metroid Prime 2: Echoes Bonus Disc
Mechanism: Mk III Shield
Portable defense barrier.
This shield is used throughout the Galactic Federation. Only heavy weapons can penetrate its armor plating.
This shield is used by security forces throughout the Galactic Federation. Only heavy artillery and ship-based weapons can penetrate its armor plating.
Non-canon warning: Non-canonical information ends here.