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Half-Life Hints
What do I do in the two blue rooms with cages and control booths?
1 of 4: Try entering the control booths and pressing the buttons inside.
2 of 4: Nice zap effect, huh?
3 of 4: You can use that to kill the headcrabs in the first blue room you come across, and again to kill the soldier that appears outside the door right afterward.
4 of 4: In the second blue room, open the headcrab cage doors and kill them however you want to, then search their cages to get a tranquilizer crossbow and some snarks.
