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Portal 2 Hints
How can I open the exit door?
1 of 7: Turn right as you enter the test chamber to see the exit door on a high-up floor.
2 of 7: Visually follow the blue dots that lead away from the exit door to see that they end next to a high-up floor on the other side of the chamber.
3 of 7: Before you can get up to it, you'll have to cross the big repulsion gel pit.
4 of 7: The easiest way to do that is to run into the pit and keep pressing the "Move Forward" key until you land on its other side.
5 of 7: If you turn and look up at the high-up floor that the blue dots lead to, you'll see that it has some portal-friendly walls.
6 of 7: Put a blue portal on one of those walls, then put an orange portal on a nearby wall and go through it.
7 of 7: Stand on the big red button that's on the high-up floor to see that it opens the exit door.
