The Giga Trooper is a large, piloted assault mech operated by G.U.N.. Spider Troupe was equipped with one which they used on their raid on the New Black Comet. It was used to carry the nuclear warhead intended to destroy the comet, and was piloted by Trooper Mantle.
- The Giga Trooper originated in the Shadow the Hedgehog video game, though it went unnamed (but still had the LZ-1 numbering on the shoulder). Unlike its comic counterpart, it didn't have a pilot controlling it. It was also smaller in the game and possessed a camouflage color scheme rather than the silver, red and yellow seen in the comic.