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Portal 2 Hints
How can I get into the next test chamber?
1 of 6: After exiting the elevator and going up some stairs, you'll enter a between-chambers area that Wheatley accidentally wrecks.
2 of 6: Wait until the wrecking is over, then look for a way to cross the big gap.
3 of 6: Notice the white conversion gel that got splattered on both sides of the gap. Do you remember what it does?
4 of 6: It makes non-portal-friendly surfaces portal-friendly.
5 of 6: Fire a blue portal onto the gel splotch that's on the wall on the other side of the gap, then put an orange portal on the gel splotch that's on your side of the gap.
6 of 6: You can then go through the orange portal to cross the gap, after which you can enter Test Chamber 16.