Xenosaga Episode I Walkthrough
Proto Merkabah: Research Complex
Treasure TrackerProto Merkabah: Research: 0 of 12 collected
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After the cutscenes, leave the LocationThe cargo ship that becomes the party’s main transportation hub. bridge and save in the corridor outside it. You can return to the LocationThe cargo ship that becomes the party’s main transportation hub. for its shops and A.G.W.S. repairs until the final battle sequence, but LocationThe final dungeon. is enormous enough that forgetting your ItemTarget: 1, EP recovery/Low (+10 EP) will feel like a personal attack.
Equip SkillPrevents Poison. or Character AccessoryPoison Guard (Prevents Poison) against Enemy2,000 HP; Gnosis type. Weak to Ice. Rewards: 2400 XP; 24 T.Pts; 10 E.Pts; 6 S.Pts; 0G. Drops: Hemlock; rare Med Kit DX. Strategy: Equip Poison Guard or a Snake Hunter before entering Proto Merkabah, then exploit its Ice weakness and remove it before Poison turns a routine fight into an expensive one.. Once you reach the LocationThe laboratory floors within Proto Merkabah., SkillPrevents Instant KO. or SkillPrevents all status effects. protects the party from Demon’s instant-KO attack. Give Shion EtherShion: One-use-per-battle 9,999-damage attack against all enemies, earned after completing the Robot Part quest. and enough EP to cast it. If you want the reduced cost, equip the Character AccessoryEP Half (1/2 EP Usage).
Outer catwalks
Area Enemies: Outer Catwalks
- Enemy2,000 HP; Gnosis type. Weak to Ice. Rewards: 2400 XP; 24 T.Pts; 10 E.Pts; 6 S.Pts; 0G. Drops: Hemlock; rare Med Kit DX. Strategy: Equip Poison Guard or a Snake Hunter before entering Proto Merkabah, then exploit its Ice weakness and remove it before Poison turns a routine fight into an expensive one.
- Enemy2,400 HP; Mechanical type. Weak to Beam. Rewards: 1800 XP; 18 T.Pts; 0 E.Pts; 24 S.Pts; 0G. Drops: Junked Circuit B; rare Frame Repair A. Strategy: Use Beam attacks and clear it quickly. The outer catwalk places several between the Elsa and the first Research Lab elevator.
| Step | Action |
|---|---|
| 1 | Leave the LocationThe cargo ship that becomes the party’s main transportation hub. and take the stairs down at the first fork. |
| 2 | Go left at the bottom and destroy the boxes. One hides a Enemy2,000 HP; Gnosis type. Weak to Ice. Rewards: 2400 XP; 24 T.Pts; 10 E.Pts; 6 S.Pts; 0G. Drops: Hemlock; rare Med Kit DX. Strategy: Equip Poison Guard or a Snake Hunter before entering Proto Merkabah, then exploit its Ice weakness and remove it before Poison turns a routine fight into an expensive one.. |
| 3 | Return to the stairs, follow the lower catwalk around the parked ships, and defeat the Enemy2,400 HP; Mechanical type. Weak to Beam. Rewards: 1800 XP; 18 T.Pts; 0 E.Pts; 24 S.Pts; 0G. Drops: Junked Circuit B; rare Frame Repair A. Strategy: Use Beam attacks and clear it quickly. The outer catwalk places several between the Elsa and the first Research Lab elevator. at the end. |
| 4 | Destroy the yellow wall fixture to reveal 1x Character AccessoryKO Guard (Prevents INSTANT KO) (). |
| 5 | Return to the stairs and take the upper path through the middle. |
| 6 | Follow the catwalk into the Research Complex. |
Storage platform switches
| Step | Action |
|---|---|
| 1 | Follow the upper path until you reach the moving walkways, then take the lower of the two paths on the right. |
| 2 | Destroy the crates beside the walkway. One contains a Enemy2,000 HP; Gnosis type. Weak to Ice. Rewards: 2400 XP; 24 T.Pts; 10 E.Pts; 6 S.Pts; 0G. Drops: Hemlock; rare Med Kit DX. Strategy: Equip Poison Guard or a Snake Hunter before entering Proto Merkabah, then exploit its Ice weakness and remove it before Poison turns a routine fight into an expensive one.; the others contain:
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| 3 | Continue past the crates and climb down the ladder. |
| 4 | Destroy the crates just south of the ladder:
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| 5 | Head left past the blue vehicles and destroy the western crates for 2x ItemTarget: 1, HP recovery/High (300 HP) (). |
| 6 | Go north and press the western yellow switch from behind, then head south and press the southwestern switch. |
| 7 | Cross under the walkway to the east and destroy the crates for 2x ItemTarget: 1, EP recovery/High (+50 EP) (). |
| 8 | Continue north and press the northern switch. |
| 9 | Use the moving walkway to return upstairs, cross the platforms you raised, and follow the catwalk to the elevator. |
Research Lab
The elevator drops you at Floor 40. Enemies stationed on the stairways do not return after you defeat them, while enemies inside the side rooms can respawn.
Area Enemies: Research Lab
- Enemy2,300 HP; Gnosis type. Weak to No weakness; resists Fire. Rewards: 3200 XP; 16 T.Pts; 28 E.Pts; 12 S.Pts; 0G. Drops: Med Kit DX; rare Ether Pack DX. Strategy: Equip KO Guard or All Guard before the Research Lab. Avoid Fire and use strong non-Fire attacks so its instant-KO move gets as few turns as possible.
- Enemy4,000 HP; Mechanical type. Weak to Lightning. Rewards: 4800 XP; 40 T.Pts; 0 E.Pts; 28 S.Pts; 0G. Drops: Frame Repair A; rare Frame Repair Z. Strategy: Exploit its Lightning weakness and prioritize it in mixed groups because its party-wide attack can add up quickly.
- Enemy4,800 HP; Mechanical type. Weak to Beam. Rewards: 5400 XP; 50 T.Pts; 0 E.Pts; 36 S.Pts; 0G. Drops: Frame Repair A; rare Frame Repair Z. Strategy: Exploit its Beam weakness and keep the party healthy before engaging it; its party-wide attack can punish a damaged group.
| Step | Action |
|---|---|
| 1 | Climb to Floor 41, enter the room on the left, and examine the green display for a scene about Realian history. |
| 2 | Return to the stairs and climb to Floor 42. The attached room has another green display and an optional Enemy2,000 HP; Gnosis type. Weak to Ice. Rewards: 2400 XP; 24 T.Pts; 10 E.Pts; 6 S.Pts; 0G. Drops: Hemlock; rare Med Kit DX. Strategy: Equip Poison Guard or a Snake Hunter before entering Proto Merkabah, then exploit its Ice weakness and remove it before Poison turns a routine fight into an expensive one. group, but the glass barrier blocks the useful route for now. |
| 3 | Continue to Floor 43 and enter the first room on the right. Destroy the container and open the chest for 2x ItemTarget: 1, +50% Max Frame Hit Points (FHP) (). |
| 4 | Enter the room on the left, use the save point, and examine the central display. |
| 5 | Climb to Floor 44 and destroy the door in the middle of the room for 1x ItemTarget: 1, Restore Full HP/EP (). |
| 6 | Open the chest behind it for 1x Character WeaponMOMO endgame weapon: Physical Attack +20; found on Proto Merkabah Floor 44. (). |
| 7 | Continue left and pass through the lower blue-gray door into the second stairwell. |
Segment Address 17
| Step | Action |
|---|---|
| 1 | Descend to Floor 43 and enter the room. |
| 2 | Use the red switch on the right to open the connection to the control room. |
| 3 | Destroy the wall fixture on the left to expose SidequestSegment Address 17 is opened with Decoder 17.. |
| 4 | Key ItemItem required to open Segment Address No. 17 came from the Third Tower. |
| 5 | Open the door, collect Character WeaponUser: Jr.; endgame gun from Segment Address 17; uses BD900 ammunition. for Jr., and mark it . |
| 6 | Save in the connected control room. The full Segment tracker updates with the same progress. |
Open the Floor 44 route
| Step | Action |
|---|---|
| 1 | Return to the second stairwell, descend to Floor 42, and press the switch at the far right. This opens the blocked route on Floor 44. |
| 2 | Descend to Floor 41, enter the room, go to the far right, and take the southern door. |
| 3 | Open the chest for 1x A.G.W.S. AccessoryPrevents Wear (). |
| 4 | Return to the Floor 43 control room and save. |
| 5 | Climb to Floor 44 and take the newly opened southern route near the Character WeaponMOMO endgame weapon: Physical Attack +20; found on Proto Merkabah Floor 44. room. |
| 6 | Head right and destroy the wall fixture in the back corner to expose a hidden passage. |
| 7 | Destroy the cylinders inside for 1x Character AccessoryPrevents EP damage; EP Guard can be extracted from it. (). |
| 8 | Backtrack left, defeat the second robot, and approach the jump point. |
Proto Dora
Heal HP and EP before jumping. Equip Damage -10 or your best defensive skills. Give your fastest healer a Boost point, and equip EtherJr.: Steals an item from one enemy., EtherShion: Steals from one enemy and can inflict Instant KO., or Tech AttackMOMO: Transformed MOMO Tech Attack with a chance to steal a rare item. if you want the one-time A.G.W.S. AccessorySpeed +50%.
Boss Fight: Proto Dora
| HP / Type | 12000 HP; Mechanical. Two Schutz accompany it with 3800 HP each; Mechanical. |
|---|---|
| Special | Beam Shield blocks Beam damage until repeated attacks wear it down. Steel Press hits the party. “Begin Energy Recharge” warns that Sonic Buster is coming on its next turn. Relief Goods restores roughly 2,300 HP. All three enemies can Boost and Battle SystemEnemy or character response that inserts a turn after being attacked.. |
| Steal | ItemTarget: 1, +50% Max Frame Hit Points (FHP); rare A.G.W.S. AccessorySpeed +50%. Each Schutz carries ItemTarget: 1, +25% Max Frame Hit Points (FHP); rare A.G.W.S. AccessorySpeed +25%. |
| Weak / Absorbs | Beam before Beam Shield blocks it. Schutz are weak to Lightning. |
| Reward | 32000 XP; 240 T.Pts; 0 E.Pts; 200 S.Pts; 0G. Each Schutz gives 5000 XP; 100 T.Pts; 0 E.Pts; 60 S.Pts; 0G. |
| Drops | ItemTarget: 1, +50% Max Frame Hit Points (FHP); rare A.G.W.S. AccessorySpeed +50%. Schutz drop ItemTarget: 1, +25% Max Frame Hit Points (FHP); rare A.G.W.S. AccessorySpeed +25%. |
| Strategy | Steal the A.G.W.S. AccessorySpeed +50% before doing anything irreversible, then remove both escorts. EtherShion: One-use-per-battle 9,999-damage attack against all enemies, earned after completing the Robot Part quest. kills them and leaves the main unit with about 2,001 HP if it begins at full health. Without it, use Lightning or all-enemy attacks on the escorts, then alternate Beam attacks with non-Beam damage when the shield is active. When energy EtherZiggy: Restores a medium amount of Ziggy's HP. begins, Boost a healer in and restore the whole party before Sonic Buster lands. Heal again immediately afterward. |
After the battle, Key ItemItem required to open Segment Address No. 6 is added to your inventory.
Key ItemItem required to open Segment Address No. 6 opens the final SidequestOne of eighteen numbered locked containers opened by the matching Decoder. in the next section.
Continue with Proto Merkabah: Planetarium.