Walkthrough for Prison Island Revisited in Xenoblade Chronicles: Definitive Edition. Find collectibles, defeat unique monsters, and progress through Chapter 17's final dungeon.
Walkthrough
- 1From the Heart Entrance of the Bionis Interior, take the portal left by Dickson to reach Prison Island. You'll unlock the Bridge of Grief Landmark.
- 2Head northeast to the Damaged Transporter and defeat the Lv 75 Unique Monster, Ageless Moabit (beware of its Spike Aura).
- 3Return to the Bridge of Grief and head west to the Prison Gate Landmark, granting access to the prison. Unlock the Central Hall Landmark and follow the path west to the next transporter.
- 4Step off the transporter, head east, and unlock the Banquet Hall Landmark. Defeat the Lv 76 Unique Monster, Serene Imlaly.
- 5Go to the east side of the Banquet Hall, take the ramp up to the next transporter. Follow the corridor to the Arena. A scene will trigger, followed by battles against Lv 75 Obelis Obart and Lv 78 Demon Pavlosk. Ensure you are at least level 75+.
- 6After the battles, you'll trigger the Story Quest and be in the Battle Arena. Head into the Behemoth Nest.
- 7On the southern wall of the Behemoth Nest, climb and follow the path to interact with the Metal Lift Activator. Drop back down and then drop through the hole to the east to reach the Kitchen.
- 8In the Kitchen, defeat the Unique Monsters Cold Ageshu (south) and Inferno Heinrich (north).
- 9Go through the Bone Pillar Control door to the west and follow the path to activate the Bone Pillar Control. Drop to the platform that rose.
- 10Head south, then jump over the side to land in the water. Make your way west, then south as soon as possible to reach the First Sanctum.
- 11Defeat the Lv 77 Unique Monster, Abnormal Clone Barg. Loot the chests for: Ether Burst, Oriental Glasses, Agros Boots, Ether V Goggles, Daedalus, Master Glasses, Grace Top, and Ether V Frame.
- 12Leave the First Sanctum and continue west, then east on the northern side of the hall to find the Second Sanctum to the north.
- 13Defeat the Lv 77 Unique Monster, Majestic Clone Barg. Loot the chests for: Lazard, Titan Arms, Grace Bottoms, Ether V Arms, Trinity, Titan Sabatons, Argos Armour, and Ether V Boosters.
- 14Retrace your steps back to the Arena: head to the Prison Gate Landmark, follow the path to the western transporter, through the Banquet Hall, and back to the Arena.
- 15A simple Master Obart awaits in the Arena. Once defeated, a ramp will appear, completing the Story Quest.
- 16Head through the opening to the south to find Collectables and the Kitchen Key, which opens a shortcut door in the Banquet Hall.
- 17Take the ramp west to unlock the Empty Throne Landmark. A Heart-to-Heart is located here.
- 18Continue west to find another transporter, leading to the Great Canyon.
- 19Follow the linear path to a Heart-to-Heart and the Gravina Bridge. Defeat the three Deinos and three Bargs on the bridge.
- 20After defeating the bridge enemies, continue south. The Lv 78 Unique Monster, Fiendish Auburn, will appear. Defeat it, then follow the stairs south to another transporter.
- 21You'll arrive in the Gondorl Cathedral. A Time Attack Portal is nearby. Speak to the Archsage to trade rare items and collectibles. He offers the final Time Attack Trial, which is extremely challenging and involves the game's ultimate Superboss. It's recommended to tackle this later.
- 22Leave the portal and head west to the Corridor of Silence, triggering a scene and a Story Quest.
- 23Head back east and use the path on the northern wall to go west, finding a Heart-to-Heart before heading to the southern wall and taking it west.
- 24Head south at the top to reach Travalga Bridge. Defeat the Lv 77 Unique Monster, Masterful Gigapur.
Tips
- Prison Island is larger than on your first visit and contains collectibles needed for a Colony 6 Quest (5 Hell Raspberries).
- The general enemy level has increased; it's recommended to be at least level 75+ for the battles in the Arena.
- The Archsage in Gondorl Cathedral trades rare items and collectibles, and offers the final Time Attack Trial, which is very difficult.
- Completion of Story Quests.
- Access to new areas and Landmarks.
- Various items and equipment from chests.
- Opportunity to trade with the Archsage in Gondorl Cathedral.
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