The Mega Mech was largely unseen through most of the war, and has only recently started engaging the Global Resistance. They are usually reserved for more advanced species than humans, but due to the continued success of the human forces they have been put to use. (On Thin Ice)
Like standard Mechs, Mega Mechs were created by the Overlords and have likely been used in battle against other alien races such as the Volm, explaining their familiarity with the Mega Mech.
A Mega Mech is twice as tall as a regular mech but contains the same metallic color as a mech. The Mega Mech is much more powerful than a regular mech and much harder to destroy. It has the same bipedal stature as a regular mech but is overall far more menacing in appearance. Rather than the 1 mech manipulater and 1 mech gun arm, the Mega Mechs possess 4 arms, each of which possesses a deadly cannon. Standard mechs only possess one gun-arm, the other arm ending in a manipulator-hand so they can be used in scouting missions. Mega Mechs, in contrast, possess nothing but guns at the ends of each of their arms - they are designed for pure combat.
Two of the arms can be folded into their backs when in transit-mode. Mega Mechs also have a clearly defined humanoid head, which standard Mechs do not possess, perhaps indicating a more advanced sensory package.
Combating Mega MechsEdit
The Mega Mechs are easily destroyed by Volm-tech augmented guns. Tom Mason and Cochise were able to quickly dispatch a pair of mega mechs using their augmented guns. Before they came, the humans were having problems combating the mega mechs. They suffer from the same AI failings and slow targeting capability as the regular Mechs. They can be distracted by quick moving close enemies while they ignore the most dangerous weaponry firing on them. Both Mega Mechs ignored the anit-aircraft cannon mounted on the Humvee, instead focusing on circling human targets which they, shockingly, rarely hit not even with their missiles. This suggests they do not have heat seeking, guided missiles or each one would have been a kill.
- Yahoo TV announced in a video that in the third season of Falling Skies, a new type of mech would be released.