In 2346, new type of robot was created by the government to reduce the amount of soldiers they would have to send off to the wars. When the prototype powered up it promtly escaped and killed everyone in the labs. No one who has ever seen it has lived to tell their tale.
About this creation
The main shot.
If you are seeing this at this angle you will probably be terminated.
It has a moving saw.
Guns and saw move up and down, and left to right. The legs and top part of the torso also move.
A comparison shot for scale.
And finally a shot from the back showing all of the points of articulation.