All Passwords From All Levels:

In the Outpost Omega level, once you have killed everything and reached the exit (this makes it easier), turn back. Go to where you entered the level and walk to the 4 computers that are just before the room with the 4 cages. Turn Right and activate the computer that isn't flashing. The Red Key will be visible at the very end of the room of cages. Now go and get it (if you haven't already).

Now return to the Blue Key Door. Jump down to the