Old Eternus Galleries

The Old Eternus Galleries (トコシヱ旧坑道) is a set of tunnels and winding paths that interconnect several points of the Eternus Shaft. However, as the name points out, they are mostly abandoned due to the presence of monsters, and are currently used only for imprisoning Great Fang traitors and criminals, and as a secret gathering point for the Great Fang Assembly. This place is also where the ancient Dive Machine VR21 was found.

History
(more coming later...)

Layout
These tunnels are an small labyrinth that has to be navigated with care in order to not get lost. Still, it isn't very hard to go through them in comparison to some of the later dungeons, and the enemy encounters aren't much of a problem either. However, keep on mind that there is a ledge that won't allow you to return to some areas once you jump down from it, so if you missed some of the treasure chests in there (which include the recipes for Aoto's and Hikari Gojo's first Supermoves), you won't be able to go back and pick them up, precluding you from attaining the "Master of Unlocking" trophy (unless you use an special glitch to jump back to it).

Treasures
Number of Treasure Chests in this Area: 14
 * Replica Horn
 * Hot Video
 * Human Anatomy
 * Duel Bobble
 * Protection Suit
 * Emergency Patch
 * B-Good β
 * Optic Shield
 * Rare Metal
 * B-Good β
 * Proliferation Diode
 * Quick Loader
 * ?Medical Bag?
 * ?Worker Armor?

Enemies
Number of Random Encounters in this Area: 10
 * Snow Stalker (from Phase 4 onwards)
 * Mini Wolf (from Phase 4 onwards)
 * Type 1 (until Phase 3)
 * Doll Model B (from Phase 4 onwards)
 * Doll Model B-G (from Phase 4 onwards)
 * Great Fang Soldier (until Phase 3)

Encounter Probability: Low