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Half-Life 2 Hints
How can I get the thumper to work?
1 of 8: If you carefully make your way along gravity-gun-moved junk all the way to the thumper, you'll be disappointed to see that it doesn't have one of those standard red-light-green-light control panels.
2 of 8: But notice that it does have a power line running over to a nearby building.
3 of 8: So use your moveable junk to get over there.
4 of 8: Or you can just go to that building straight from the grassy hill that's near the two optional buildings instead of wasting your time going out to the thumper first.