The Giga Troopers first appeared as uncommon enemies in Shadow the Hedgehog. They are only encountered in GUN Fortress, where they can be found fighting alongside GUN Troopers, Big Foot Type As and Big Foot Type Bs to defend the fortress from Shadow and the Black Arms.
Giga Troopers have superb resistance to damage. When facing them, it takes about six Homing Attacks to destroy them. In terms of attack patterns, they will try charging at the playable character when they spot them. The Giga Troopers also wield weapons like RPGs and Semi-Auto Rifles which they will use against the playable character. Once a Giga Trooper is defeated, it will drop its weapon, allowing the playable character to use it themselves. Their combined durability and choice of weaponry makes them one of the overall toughest enemies in Shadow the Hedgehog and one of the strongest GUN robots in the game, second only to the Big Foot Type B. They each also grant 500 Dark points upon defeat.
Power and abilities
The Giga Trooper has the same abilities as that of GUN Trooper, except it has stronger armor.
In other media
In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, the Giga Trooper is a mech used by the Guardian Units of the Nations. One was used during the organization's mission to destroy the New Black Comet.