All three types have almost impenetrable energy shield which can deflect bullets and other solid weaponry, however, its defenses and attacks are not enough to stand up to the Gurren-Lagann, which managed to defend against its attacks and drill through the mecha during its initial appearance with the Giga Drill Break. However, unlike normal Gunmen that simply explode or break-down when dealt a fatal blow, these mecha turn into small explosives that devastate anything nearby, causing almost as much damage as the Mugann itself can cause. This is a result of the mecha's unstable molecular structure which also enables it to easily teleport itself through long distances.