Fault Surface Area 1 Guide

Fault Surface is The Mystery of Arpeggio Fault's Stage 1 Area in Zenless Zone Zero (ZZZ). See the Area 1 guide for each floor, the quest walkthrough, and rewards here!

The Mystery of Arpeggio Fault Event
Fault Surface		Old Observatory		Outpost Beacon
Laboratory Ruins		Turbulent Corridor		Bangboo Password
Slumbering Land Quest			Where the Mystery Went Quest

Fault Surface Stage Details

The Mystery of Arpeggio Fault Stage 1 Details and Floors

Recommended Data File

Data File	Data File Details
Battle Expertise	Initial Effects Receive combat-related Sub Strategies when levelling up.
	Full Effects • Protagonist HP +20, ATK +2 • HP +2 when the protagonist defeats an enemy with an attack • Protagonist HP +20, ATK +2 • When the Protagonist attacks enemies, there's a 25% chance to trigger a critical hit, dealing double DMG • Protagonist ATK +7

Fault Surface Area 1 Guide

Arpeggio Fault Area 1 Strategy

1. Defeat All the Opponents
2. Collect As Many Crimson Silk
3. Use Your Keys Wisely
4. Bombs Can Destroy Everything
5. Find Lost Items
6. The Bangboo's Password

Defeat All the Opponents

Try to defeat all the opponents on each stage, so you can unlock different buffs to further increase your HP and ATK by levelling up. You can level up by defeating the enemies yourself or letting your squadmates do it for you.

But, always check your HP before you go bumping into enemies and trying to defeat them. One thing you would not want to happen is for you to fail the stage due to the loss of HP.

Collect As Many Crimson Silk

Crimson Silk is the purple-red cube that can be found inside the Arpeggio Fault HDD. This item can help you randomize your buffs in the Tech Tree. Each buff can help make the exploration of each stage much easier.

Use Your Keys Wisely

Keys can be found randomly inside each floor, whether it's dropped by defeating an enemy, opening a chest, or obtaining a Resonia. Keys can open locked doors that lead to even more rewards, shops, or even traps and enemies.

There are only a limited amount of keys you can use and locked doors you can open with it on each floor. It solely depends on how many you found or you bought from the shop.

Fruit Peeler Resonia Can Open Doors With 1 Coin

If you have a chance to obtain the Fruit Peeler Resonia, it will allow you to open locked doors with 1 Gear Coin instead of a key.

Bombs Can Destroy Everything

Bombs can be used to destroy walls or open chests that are trapped inside ether crystals. However, they can also destroy everything else, like ether crystals, enemies, spike traps, or even autonomous robots that can help assist you.

Find Lost Items

Dampened Ether Explosives - Shallow Floor

On the Shallow floor of Fault Surface, you will be able to find a Dampened Ether Explosives lost item near the end of the exploration.

Photo of the Turbulent Region - Fault Floor

Another lost item, the Photo of the Turbulent Region, can be obtained after talking to the researcher at the middle of the Fault Floor of Fault Surface.

The Bangboo's Password

Letter C - Shallow Floor

In Fault Surface, a strange Bangboo tile can be found near the end of the Shallow floor and will give you the letter C as the first letter of a certain password.

Letter B - Fault Floor

The same Bangboo tile can be found on the Fault Floor of Fault Surface and it will give you the letter B as the sixth letter of the password

The Mystery of the Arpeggio Fault Special Investigation Quest Guide

Special Investigation Quest Walkthrough

1. Find Roland to Learn More Details
2. Meet the Investigation Director
3. Enter the Appreggio Fault for Investigation
4. Continue Investigating Deeper Into the Fault
5. Speak With Soldier 11 Again
6. Ask Ray About the Investigation Progress

Find Roland to Learn More Details

Teleport to Scott Outpost and talk to Roland about his new task for you.

Scott Outpost Guide

Meet the Investigation Director

Meet the investigation director just outside the tent in Scott Outpost. You will see that it's Soldier 11, with a bunch of Bangboos in front of her.

Soldier 11 Best Builds and Teams

Enter the Appreggio Fault for Investigation

Go to Hollow Zero inside the tent in Scott Outpost and access The Mystery of Appreggio Fault from the first menu.

Afterwards, you will have access to the stage 1 of the event, Fault Surface.

Fault Surface Area 1 Guide

Cutscene With Soldier 11 After Completing Shallows Floor

A cutscene with Soldier 11 in front of the tent in Scott Outpost will occur after you complete the Shallows floor of Fault Surface.

Continue Investigating Deeper Into the Fault

Continue investigating deeper into the Arpeggio Fault after talking to Soldier 11 and completing the Shallows floor of Fault Surface.

Speak With Soldier 11 Again

After completing the Fault Floor of Fault Surface, another cutscene will occur with Soldier 11 in front of the tent in Scott Outpost.

Ask Ray About the Investigation Progress

Ask Ray inside the tent about the investigation progress on the identity of the unusual Bangboo, no. 4412 - an Exploreboo.

After talking to Ray will conclude the Special Investigation and unlock the Unravelling.

Old Observatory Area 2 Guide

All Fault Surface Rewards

Fault Surface Hollow Zero Rewards

Stage	Rewards
Prep Area	Polychrome x30 Senior Investigator Log x2 Denny x10,000
Shallows	Polychrome x30 Senior Investigator Log x2 Denny x10,000
Mid-Level	Polychrome x30 Senior Investigator Log x2 Denny x10,000
Depths	Polychrome x30 Senior Investigator Log x2 Denny x10,000
Fault Floor	Polychrome x30 Senior Investigator Log x2 Denny x10,000

Stage 1 Event Exclusive Rewards

Stage	Rewards
Complete all stages in Fault Surface	Polychrome x30 Senior Investigator Log x2 Denny x10,000
Upgrade your squad 10 times during exploration	Polychrome x30 Senior Investigator Log x2 Denny x10,000
Pick up Crimson Silk a total of 10 times while exploring	Polychrome x30 Senior Investigator Log x2 Denny x10,000

Fault Surface Information

Part of The Mystery of Arpeggio Fault Event

Fault Surface is Stage 1 of The Mystery of Arpeggio Fault Hollow Zero Event! During this stage, you must head straight down to the lowest possible floor of the Area.

The Mystery of Arpeggio Fault Event Guide

Zenless Zone Zero Related Guides

The Mystery of Arpeggio Fault Event Guide

Arpeggio Fault Quests and Stages

Areas	Related Quests
Fault Surface	The Mystery of Arpeggio Fault: Special Investigation
Old Observatory	The Mystery of Arpeggio Fault: Unravelling
Outpost Beacon	The Mystery of Arpeggio Fault: Final Puzzle Piece
Laboratory Ruins (Floor 52-64)	The Mystery of Arpeggio Fault: Corruption Crisis
Turbulent Corridor (Floor 67-81)
Laboratory Ruins (94F-B & 99F-B)	Arpeggio Fault Follow-Up Investigation - Where the Mystery Went
Turbulent Corridor (87F-B & 88F-B)	Arpeggio Fault Follow-Up Investigation - Slumbering Land

Other Arpeggio Fault Guide

Other Event Guides
Password Locations and Arpeggio Fault Secret

Other Current and Upcoming Events

All Events and Schedule