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DOOM 3 Hints
What if I ever need to go back up the stairs that collapse?
1 of 3: NOTE: This happens when you first climb the stairs in Hydrocon Condenser that lead to the door to Hydrocon Junction 1.
2 of 3: You shouldn't have any reason to go back down the stairs once you've gone up them. You've already been through all the areas back that way.
3 of 3: However, if you ever need to get back up those stairs, then take a running jump at one of the railings and run up it.