Asked
— Edited
How many Ez-b4's do you think it would take to control this spider? this is nice I wish I could have seen it in person.. 
Command Duplicator
— Duplicate and synchronize commands from one master EZ-B to multiple slave EZ-Bs for simultaneous, mirrored robot actions.
Try it →
Very cool. Looks like all Hydraulics and is build and operated like a backhoe. I see the "driver" operating leavers near the head.