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Portal 2 Hints
How can I get the cube to the door-opening button?
1 of 5: Carry the cube through the blue portal so that you're on the original light bridge section, then set it down.
2 of 5: Looking down into the chamber, you should see the exit alcove over to the right. That's where the big red button is, so that's where you need to go next.
3 of 5: Look directly across the chamber from the exit alcove to see that there are some portal-friendly walls there.
4 of 5: Relocate the blue portal onto a spot on those walls so that the light bridge goes across to the exit alcove.
5 of 5: Pick up the cube and walk along the bridge to reach the exit alcove, where you can put the cube on the big red button and then leave.
