Okay, I understand that giant robots (or Mecha, Meka, Mech, etc.) should be built as a vehicle, that makes sense since you have to pilot it, repair it, etc. etc.
So my question is for it to have manipulators (arms and hands for gripping robot sized weapons) do I need to buy Extra Limbs or does that come with the flavor of a Robot Vehicle? And if I do need Extra Limbs should it have any limitations?
I have the two base Sixth Edition books.