A1: Clue is that you can use the triangle button or throw at the statues to activate them. Activate statues to get to the final one. Pick up crystal and go back toward the first statue - throw at the statue while standing on the proper side. When the statue is hit the force field will come up and you can walk back past the next statue, turn and throw back at it with a crystal. This brings up the second force field and drops the third.