It's random chance if you fight her in survival, I have fought her 5 times now, it always happens on stage 7 and there is a cutscene where she blasts through the door of the space station and she says something like "go back, there is nothing here but a shortcut to hell"
edit: Whoops sorry, I thought you were talking about time attack

, yeah, you can't fight her in survival, she never appears.
This post has been edited by jkh13: Jul 10 2006, 11:31 PM