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Portal 2 Hints
How can I get past all these turrets?
1 of 6: The first turret has its back turned to you, so it's really easy to run up to and knock over. Note that it'll stay deactivated even if you pick it up and set it back upright.
2 of 6: As you round the corner, the next turret will be facing you, and will start shooting soon after it sees you.
3 of 6: The turret around the next corner is standing on a portal-friendly bit of flooring, so you can dispose of it easily by firing a blue portal at its feet.
4 of 6: Past some stairs, you'll find a room with three storage cubes in it (how generous!), plus the entrance to a hallway that's guarded by two opposite-facing turrets.