K'nex Halo Scorpion Tank

I finally have finished another project. This time it is a K'nex scorpion tank from Halo.
- It can drive around as I have used chain links for the treads.
- The whole turret can rotate by using gears and a switch on the back (orange)
- The turret head can aim up and down using gears and can be locked in positions.
It is made to be about scale size to bionicles and has a compartment inside for a driver and a turret at the front. 
The main body is supported and moves above the ground as the 4 legs hold it up.
This thing is pretty heavy and I am really satisfied with how it turned out. Sadly I am going to take it apart soon, but that will allow me to take pictures and make a guide for it.
The dimensions of it are 30 inches long, 21.5 inches wide, and 12 inches high. 
"why are there 6 peddles but only four directions" Caboose from Red VS Blue.