The Mystery of Arpeggio Fault Event Guide for Zenless Zone Zero

This event takes place after version 1.3 goes live, until December 17th, 2024.

The Mystery of Arpeggio Fault is part of the Ridu Chronicles. This means that once time is up, the event will be documented in Ridu Chronicles and you can continue playing the event content. However, limited rewards will not be available anymore.

The Mystery of Arpeggio Fault Event is linked to a new Rogue-like gameplay mode in Hollow Zero. With the mode itself being split into 5 chapters, each with multiple floors of randomly generated areas waiting to be explored.

You need to complete the Qualification Assessment: Edge in Hollow Zero to have access to the event.

Head to Scott's Outpost and talk to Roland to learn more details! He will teach you that the Arpeggio Fault is a deep ravine on the edges of Hollow Zero with unstable gravity and a large volume of floating land masses. It is also a shortcut to the old capital, so the main goal of exploring is to build an observation station inside the area.

Proxy's role will be to enter the Arpeggio Fault and retrieve monster data.

Soldier 11 will be your Chaperon for this mission, together with a bunch of Bangboo!

Head to the Hollow Zero, and enter the Mystery of Arpeggio Fault game mode. There is a total of 5 areas to explore.

In this game mode, you will have to explore multiple floors. The objective of the mission is to explore as far down the Arpeggio Fault as possible and reach the bottom. Pressure and Corruption will also not affect your exploration, and the squad will accumulate Experience that you can use to enhance your Formation Strategy abilities. Experience is earned when defeating enemies by bumping into their TV's. When you reach 100 EXP, you gain a sub-strategy that will depend on your chosen Formation Strategy.

You can also get Crimson Silk to upgrade your tech-tree, providing permanent buffs.

Combat is done directly on the monitors.

2.

The Mystery of Arpeggio Fault Areas

Fault Surface Old Observatory Outpost Beacon Laboratory Ruins Turbulent Corridor

2.1.

Fault Surface Prep Area

Head through the TV's, defeat the enemies, and pick up the various objects such as the Purple-Red Crimson Silk used to upgrade the Tech Tree outside of the game.

The first floor is very easy, just head straight in front of you and defeat the enemies, it is the tutorial floor.

The layout of the next floors seems to be randomised each time you enter a floor, but here are a few things you can look out for in the Prep Area:

• Pick up the bombs when you see some.
• Bombs can destroy any type of wall, but make sure to detonate them wisely, as they will be limited.
• Pick up any boxes, object, and most important the Crimson Silk and Keys.
• Use the keys wisely as well. They spawn randomly on each floor, and can open various doors.
• Look out for the Fruit Peeler Resonia, as it will allow you to open doors with 1 Gear coin instead of Keys.

2.2.

Fault Surface Shallows

You will be able to choose a support agent. At the start only Anby Demara is available. As you advance in your explorations, you will obtain more contribution points, and you will be able to take more agents with you.

Certain floors will also hide Lost items you can discover: in the Shallows floors you can have a chance to find a Dampened Ether Explosive. if you don't find it on the first run, you can re-run the floor multiple times.

In this floor, you can also find a strange Bangboo tile. It is located near the exit on the left. This Bangboo will give you a letter: C. This will be part of a Password.

2.3.

Fault Surface Mid-Level

The mid-level doesn't hold any special item. Defeat the enemies and find as many items as you can.

2.4.

Fault Surface Depths

During the Depths floors you can find a RIP TV. Be careful when you interact with those, as they can spawn activated bombs or enemies on random TV's.

2.5.

Fault Surface Fault Floor

This is the last Floor for the Fault Surface Area. You will have to defeat a mech, but worry not as Soldier 11 will come to help and join your squad.

Soldier 11's attack will not be affected by any boost found during exploration, and will not increase. We advise you let your squad members defeat the mech, as he does a lot of damage. Simply position yourself around the mech, and let the squad members do the damage.

On the next floor, pick up all the crimson silk, and talk to the researcher in the middle:

He will give you a Photo of the Turbulent Region. This another Lost item.

Before leaving make sure you uncover all the tiles, as a strange Bangboo is hidden on the right side: He will give you the letter B this time!

COMING SOON!

COMING SOON!

COMING SOON!

COMING SOON!

This Event will have both permanent and limited rewards, including a New Bangboo!

You can earn the following limited rewards:

• 400 Polychromes
• 20 Specialized Shock Chip
• 150,000 Dennies
• 10 Senior Investigation log

And the A-Rank Bangboo Knightboo with 4 Knightboo Core! To get the Bangboo you need to complete the exploration of Fault Area 1. In order to receive the Cores, you need to complete the exploration of fault Areas 2 to 5.

Limited-time rewards cannot be claimed after the event is over. Please make sure to claim your rewards before the event time is over.

You can earn the following permanent rewards:

• 150 Polychromes per Area
• 1,000 Inter-knot Experience per Area
• Senior Investigation log