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The Orange Box: Portal Hints
What's a safe way to knock all of them over?
1 of 7: Go into the nearby cube storage room and scout out the button room through the unbreakable windows.
2 of 7: You'll see that the most troublesome turret in there (the one nearest the button-opened door) has a red X on the ceiling directly above it.
3 of 7: So wait until it goes dormant, then go to the room's doorway and fire a blue portal at the X on the ceiling above it.
4 of 7: Get back under cover and open an orange portal in a nearby wall, then cube-drop the turret.
5 of 7: Instead of that, you can fire an orange portal at the floor underneath the turret nearest the doorway to get it to fall on top of the other turret, hopefully knocking both over. This is a bit harder to get right, though, so save before trying.
6 of 7: The turret nearest the doorway can be sneaked up on and knocked over if you didn't use the previous portal-drop tip to get rid of it.
7 of 7: The final turret can be pushed over with the "crouch-walk with cube held in front" method.
