Go through the door that leads out of the pit, after defeating the Ubese, then take the left-most door. To access the Cheat Node, climb out of the pit after defeating your opponent (Mira or Hanharr). Some of them can skip you ahead in the area, such as 'Skip to final sequence', while others seemingly do nothing, such as 'Delete Mira'. Much like the Galaxy Droid from the original Star Wars: Knights Of The Old Republic, there are interesting features in this hidden menu.
The Cheat Node is a menu that can be accessed in the back rooms of the Jekk'Jekk Tar tunnels.