The Orange Box: Portal Hints

How can I get across without using portals?

  • 1 of 4: By using the two up-and-down platforms.
  • 2 of 4: Jump onto the one nearest you as it's in the process of rising up.
  • 3 of 4: When it stops going up, quickly jump across to the central platform.
  • 4 of 4: Then repeat the process with the second up-and-down platform to get to the other side.