I was really wowed by this game, with its extensive optional content. I was able to complete the ‘bare bones’ walkthrough up to its second-to-last step, get the glowing orb and the cube, absorb the spirits, and put the orb on the shrine, activating the force field.
I cannot get out of the temple, now, as the force field blocks my way east to the crashed transport and the beacon. If I leave now with the orb, deactivating the shields, I only get 130. What do I need to do for the last 20 points? I could not find a solution in the hints file, either.