Rotate body manually instead of physics

Hi, im creating a character that walks on the walls, and I need it to rotate depending on terrain conditions.

The node have children nodes with triggers attached. When I enable the rotation and physics body moves the main body, child nodes does not rotate with parent.
How can I make all the bodyes to rotate as a group instead of each one rotating on his own center?
why rotating the parent node does not affech child bodies?

:confused: any ideas?