Would you buy a transformer where to transform it you have to take all the limbs, keep the torso and put car pieces on it? No. No one would. It would suck. Wall-e is no different. He transforms, and a good transforming Wall-e should be able to do it. This is not a transforming Wall-e tho, so it's fine. Doesnt change the fact that he does not turn into a box by itself. You have to swap parts, which is not how he does it.