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☆ Trophy Guide: How to Get Platinum
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There are three Seabed Storerooms found in Dragon Quest 2 HD-2D Remake (DQ2). Check out all Seabed Storeroom locations, how to reach them, and the bosses you’ll face in each one!
List of Contents
| Map Image | Overworld View |
|---|---|
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| Obtainable Items | |
| ・Zombiesbane ・Metal Slime Shield |
|
The Southern Seabed Storeroom is located in the South Sea, west of the Volcanic Grotto, near the coast of the Rendarak region. One Killer Machine is guarding the treasure vault.
| Map Image | Overworld View |
|---|---|
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| Obtainable Items | |
| ・Somatic Staff ・Mini Medal ・Sword Dance Scroll ・Pirate King's Pendant |
|
The Western Seabed Storeroom is located in the Western Sea, south of Moonbrooke Castle, near Slime Island. There are two treasure vaults: the eastern vault is guarded by 2 Killing Machines and one Overkilling Machine, and the western vault is guarded by 2 Overkilling Machines. You will need to have the Moonshard to access this storeroom.
How to Get Moonshard and Effects
| Map Image | Overworld View |
|---|---|
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| Obtainable Items | |
| ・Dragon Scale ・Kaboom Scroll ・Wild Side Scroll ・Blessed Bikini ・Mini Medal ・Headman's Axe |
|
The Northern Seabed Storeroom is found in the North Sea, southwest of Midenhall Castle. Each treasure vault is heavily guarded: 2 Uberkilling Machines to the east, one Uberkilling Machine and 2 Overkilling Machines in the center, and 3 Overkilling Machines to the west. You will also need the Ultimate Key to open every treasure chest here.
How to Get the Ultimate Key and Where to Use It
You’ll need the ship first, which you obtain naturally as the story progresses.
You must also learn how to deep dive, which becomes available after fixing Lorelei’s Harp later in the game.
How to Unlock and Get the Ship
To fully clear every underwater storeroom, you must progress the story up to your arrival at the Rendarak Shrine. The enemies guarding the storerooms are extremely strong, so leveling up naturally while advancing the story is recommended.
Walkthrough Part 12: Sunken Ship to Passage to Rendarak
Many treasure chests and entrances are locked behind key requirements or Moonshard activation, so make sure you collect the Magic Key, Ultimate Key, and Moonshard beforehand.
The boss of the Southern Seabed Storeroom is a Killer Machine. It’s not much different from the ones you encounter in field battles, so you can defeat it quickly with Gigaslash, which the Prince of Cannock can learn.
The Western vault is guarded by a mix of Overkilling Machines and Killer Machines. Overkilling Machines have very high Speed and Attack, so use buffs to boost the Prince of Cannock’s damage and take them down fast.
The Northern storeroom is guarded by a combination of Uberkilling Machines and Overkilling Machines. Uberkilling Machines have greater Attack and Speed than Overkilling Machines, so prepare your party accordingly.
Bronze Trophy
|
Treasure Hunter |
|---|---|
| Defeat a uberkilling machine in the Seabed Storeroom. |
Defeating an Uberkilling Machine is required for the Treasure Hunter trophy on your way to platinum.
Trophy Guide: How to Get Platinum

Tips and Tricks: Beginner's Guide to DQ2
List of All Seabed Storerooms



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