Legacy: "Triaxia"
Scenario: You find yourself here more than once. The first time you enter, you are after a prototype weapon that the Skaarj have created. The second time, well, you're not here because you planned it.
(If you have entered Triaxia through the main door...)
Triaxia 1: I have a strategy that I like to use. At the beginning of the level, I mark a point near the entrance with the Warp Key after I kill the Skaarj Berserker (or Berserkers) nearby. This allows me to return to this area after going through what might otherwise be considered a one-way passage.

Triaxia 3: The teleporter near the crusher brings in a few Skaarj Assassins if you kill any of the Berserkers on that level. Kill all of the Berserkers quickly, then try to deal with the Assassins separately.

Triaxia 5: After you have what you came for, take the extra effort to get rid of all the monsters in the last few areas. Trust me, at a later time, you'll be glad you did.
(If you have entered Triaxia through a portal...)
Triaxia 6: You are about to face a Warlord, just as that Skaarj directive mentioned. There are a few things to think about with these weapons: use the Tri-Shotgun for the majority of the battle, since it's an instant hit weapon. The Railgun is a good choice if you're all the way across the room from him. If he's just standing and firing at you, throw one or two Sticky Bombs without the spikes. The Skaarj Pulse Gun is good if he's retreating. Do not use the Chaingun, because you really need to be able to dodge his rockets. Also, don't use the Smart Disk, since it's attracted to his rockets.


While going straight up, you'll find two platforms to land on and collect more kerosene. Save your game at the second one, because there's some kind of bug in the room at the top that will kill you instantly unless you're very careful.
New Weapons and Significant Items (first time): Acoustic Dampener, Nali Ruby, Skaarj Pulse Gun
New Weapons and Significant Items (second time): Skorcher
Destination at End of Level (both times): The small Skaarj portal in the Nexus, located near the Moon Portal.