Segment Address

The Segment Addresses is a feature of all 3 Xenosaga games. They are a series of locked red doors located across the world that require a specific decoder to be found to unlock. The Segment Files are used to record discovered Segment Addresses, decorders and other information.
==Description==
Most Segment Addresses appear as a locked red door with a yellow ring in the center. There are reports of gold Segment Addresses, but due to the scarcity of the reports, not much is known about them. They are the result of a programming glitch in the nanomachines used in construction. The Cunningham Company, the largest nanomachine manufacturer denied its claim that their nanomachines are responsible for their creation.
==Episode I==
While on the Woglinde, Shion runs into a soldier named Sergeant Swaine. Swaine explains that there is a bug involving a nanomachine core used for building and construction which is responsible for the creation of a variety of sealed doors across the world. He provides Shion with the Segment File which can be used to track them. Swaine is later killed during the Gnosis attack and provides her one of the decoders that can be used to open one of the doors.
===Segment Address Information===
# 	Door Location 	Decoder Location 	Prize
1 	Kukai Foundation - Hotel Roof (Section 26) 	Durandal - Park, after speaking to Kukai Foundation Pink Bug 	Robot Part - Head
2 	Dock Colony - Basement of Talk to Me store 	Song of Nephilim - After defeating Athra 26 Series 	Robot Part - Body
3 	Kukai Foundation - Lavare Cleaners 	Encephalon - Bunnie's home 	Robot Part - Right Leg
4 	Pleroma - Second Floor, shrine path 	Pleroma - After defeating Mercurio A 	Thief Ring
5 	Encephalon - Near exit of Park sewers 	Durandal - Armory 	Double Buster
6 	Proto Merkabah - Planetarium Room 	Proto Merkabah - Provided after defeating Proto Dora 	Trauma Plate
7 	Woglinde - Near Sgt. Swaine 	Woglinde - Provided by Sgt. Swaine 	Robot Part - Right Arm
8 	Elsa - Corridor B2F 	Kukai Foundation - Receive from woman in Iron Man Bar after completing fish detector sidequest	Robot Part - Left Leg
9 	Cathedral Ship - Research Lab 3F 	Cathedral Ship - Chest outside of the Mall 	Robot Part - Left Arm
10	KOS-MOS Simulator - Building First Floor 	Elsa - Catapult Deck 	2 Booster Packs
11	U-TIC Battleship - Soldier Room 	Pleroma - In statue in Soldier guarded area 	Coat Ice
12	Song of Nephilim - Third Floor of Second Tower	Encephalon - At top of ladder in sewers 	W Hammer Rod
13	Cathedral Ship - First Floor of Mall 	Kukai Foundation - Chest on the Roof in City 26/27 	Samurai Heart
14	Elsa - Catapult Room 	Song of Nephilim - Fifth Floor of First Tower 	Speed Shoes
15	Encephalon - Near Subway ticket booth 	Cathedral Ship - After defeating Hydra at Flower Shop 	Angel Ring
16	Woglinde - Corridor near Communication Center 	U-TIC Battleship - Behind door requiring U-TIC Card 	Stim DX
17	Proto Merkabah - 43rd Floor 	Song of Nephilim - Third Tower 	BLOOD9
18	Woglinde - Near Shion's Room 	Woglinde - Behind destroyable window in Communication Center 	Coat Lightning
==Episode II==
Shion receives the Segment File from Angelina Swaine, the sister of Sgt. Swaine in Second Miltia.
===Segment Address Information===
# 	Door Location 	Decoder Location 	Prize
1 	Dämmerung - Restricted Area behind boxes 	GS 05 Prize 	Secret Key 8
2 	Elsa - Cabin 	Ormus Stronghold 	Secret Key 22
3 	Second Miltia - Area 40 Publishing Agency stockroom	Segment Address 16 Prize 	Robot Part - Left Leg
4 	Ormus Stronghold - Transporter Maze 	Subconscious Domain - Summer 	Secret Key 9
5 	Labyrinthos 	Labyrinthos 	Secret Key 20
6 	Second Miltia - Next to Angelina Swaine 	Second Miltia - from Angelina Swaine	Secret Key 3
7 	Dämmerung - Restricted Area Storage Room A 	Segment Address 14 Prize 	Robot Part - Left Arm
8 	Desert - Cliff on right by entrance 	GS 13 Prize 	Robot Part - Body
9 	Second Miltia - Uzuki Residence 	Submerged City 	Secret Key 4
10	Submerged City 	Ω System - Near EVS 	Secret Key 26
11	Kukai Foundation - Urban Area West under statue 	Durandal - from 100-series Realian 	Secret Key 23
12	Heaven's Ruins 	Defeat Nepos Rigas 	Sequencer D
13	Ormus Stronghold - Block Puzzle Room 	GS 35 Prize 	Robot Part - Head
14	Old Miltia 	GS 27 Prize 	Robot Part - Right Arm and Decoder 7
15	Subconscious Domain - Winter 	Dämmerung - Restricted area 	Secret Key 5
16	Kukai Foundation - Urban Area East in Ironman Bar 	GS 29 Prize 	Robot Part - Right Arm and Decoder 3
17	Ω System - Elevator first stop 	GS 06 Prize 	Secret Key 28
18	Submerged City 	Dämmerung - Restricted area 	Secret Key 16
==Episode III==
Shion receives the Segment File from Theodore on Fifth Jerusalem near the Mobius Hotel after destroying some crates for him. If the player successfully opens all 15 Segment Address doors, they will receive the item KOS-MOS's Swimsuit. The player can check the current status of the Segment Address on the Segment File menu.
===Segment Address Information===
# 	Door Location 	Decoder Location 	Prize
1 	Dabrye Mine 	Floating Landmass - Ancient Temple 	Witch's Eye
2 	Abel's Ark - Green Sphere 	Complete first 10 stages in Hakox 	G-Ignis III
3 	Pedea Island 	Pedea Island - Defeat Erde Kaiser Σ 	EK Σ Device
4 	CAT Testing Ground 	CAT Testing Ground 	KWP-XI
5 	Labyrinthos 	Acute Neurosis Treatment Facility 	EK Fury Device
6 	Durandal 	CAT Testing Ground - Defeat Ω Id 	EK Dark Device
7 	Acute Neurosis Treatment Facility	Acute Neurosis Treatment Facility - Exchange Federal Reports with woman	Ring of Coercion
8 	Vector S-Line Division 	Pedea Island 	Tears River
9 	Elsa 	CAT Testing Ground - Defeat Aludra Calf 	EK Device
10	CAT Testing Ground 	Merkabah 	KAP-NAR
11	Merkabah 	Dabrye Mine - Defeat Mai 	Sweet Pain
12	Floating Landmass 	Merkabah 	Guardian
13	Abel's Ark - Blue Sphere 	Labyrinthos 	
14	Elsa 	Abel's Ark - Blue Sphere 	Iron Maiden
15	Labyrinthos 	Dabrye Mine 	Hinoka Kagura
==Database==
Category:Gameplay mechanics (XS1)Category:Gameplay mechanics (XS2)Category:Gameplay mechanics (XS3)Category:Lore (XS)