Does the limitations of 3D physics just mean that the thing can't really be connected, and you are responsible for making a subset of the moves by free hand, an

Does the limitations of 3D physics just mean that the thing can't really be connected, and you are responsible for making a subset of the moves by free hand, and if you screw up you either cheated, or made the equivalent of a corner twist on a Rubik's cube, leaving the resulting configuration unsolvable?