The Vallaks and Dino Mech are some of the biggest enemies in Earth Defense Force 2017. They are tough, powerful, and most importantly, fast. They are only encountered three times in the entire game. You encounter three normal Vallaks and one Dino Mech. The vallaks drop four items each and the Dino mech does not drop any.
The normal ones main attack is to breath fire and if that fails to kill their target they will charge them and crush them under foot. The Cybernetic Vallak has two very powerful laser cannons that have very long range and can direct these twin slicers either straight forward or going in a horizontal line from right to left(Vallak point of view) and can deal a pretty good amount of damage if caught in the line of fire. And can also like the vallaks can charge and crush enemies, yet seem to try to evade the EDF, almost knowing that the lasers can be avoided at the feet of the cyborg.