This is a   Public DANG   entry (members.xoom.com/publicdang/)

author:     Doug Merrill -- opulent@goodnet.com

game:      Ultimate DOOM version 1.9

category:    Nightmare! -Secrets

level:      E1M4

stats:      Kills     %
            Items      ?%
            Secrets    %   and Time   0:36

comments:    Come on.... that rj is for experts only.
	      You have to:
1) live healthy enough (not hard)
2) get through the door without the Demon/imp combo bothering you.
3) back up fast enough to help JUMP.
4) time the rocket shot (because it sure ain't instant)

toughest one is #4 by far.

so this is the blue key jump.
just checked: AS did this route too.
Now I feel better.