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DOOM 3 Hints
What is this odd power-up under the floor in PRC Personnel Ready Area?
1 of 5: Pick it up and see what happens.
2 of 5: Your vision goes blurry, you start screaming like a maniac, you're invincible to enemy attacks (but not environmental hazards), and all of your weapons (not just your fists) do a *lot* more damage than normal.
3 of 5: This is obviously DOOM 3's new hyped-up and wacky version of the classic berserk pack. Pick it up and then punch the crap out of all the zombies that appear.
4 of 5: Unlike the berserk pack in old DOOM, this one completely wears off in 30 seconds instead of giving you increased punch power for the rest of the level. Oh, well. It was certainly fun while it lasted!
5 of 5: NOTE: After you kill all the zombies, the locked door you were approaching when the floor dropped you down to the berserk pack becomes unlocked, and a few little ledges extend in front of it that you can use to jump up to it.