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The Orange Box: Portal Hints
How do I get past the piston hazards?
1 of 6: The first of the two hazards is a bunch of fast-moving horizontal pistons blocking the path.
2 of 6: Thankfully, you don't have to try to time your way across.
3 of 6: The walls on both sides of the pistons are concrete, so portal your way past the pistons.
4 of 6: The two vertical pistons just past those look like you could time your way through them, but once again, portals are the only answer.
5 of 6: You can fire an orange portal past them when the nearest one is down and the one past it is moving down.
6 of 6: After that, fire a blue portal into a nearby wall and walk through to piston area #3.
