if the goggles and mask are a prop, then parent them to the figure's head. You do this in P5 by selecting the goggles, going to the properties pane and hitting the button that says "set parent". In the window that pops up, find the head of the figure and click on it, then click ok. It should move with the figure after that :)

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)