You enter the cave to find a giant mech with all the manuals referring to it as "HYPERION". There is a control panel nearby...
[Special] If you have an "Unlocked Data Pad" and an "Access Drive Token", you may Activate Hyperion.
[Insert] Nuclear Cores....
You may discard 1 "Glowing Trinket" in your journal to Fire Hyperion's cannon and replace one area on your map with "Exposure to Radiation".
[Special] This action can be taken multiple times.
[Special PvP] If another player is on that spot of the map, they are instantly killed.
You may discard 2 Glowing Trinkets to move Hyperion to an adjacent map spot. Replace that location with "Mysterious Lair" that leads to the Hyperion Cave.