Shadow of the Colossus Hints

I've grabbed the colossus. How do I get past these lightning spikes?

  • 1 of 4: You can disable them.  Can you figure out how?
  • 2 of 4: How do you do anything to a colossus?
  • 3 of 4: To disable a spike, you'll have to find a nearby weak spot and stab the spot with your sword.
  • 4 of 4: There's a small glowing green weak spot on the colossus's back, posterior to each spike.  (As you walk towards the head, you'll walk on top of one small weak spot just before you reach each spike.)