Abandoned Skyscraper Guide - Hollow Zero

Abandoned Skyscraper guide in Zenless Zone Zero (ZZZ). Includes Hollow Zero walkthrough, how to unlock, License Levels, Abandoned Skyscraper, Resonia Collection, tips and more!

Hollow Zero Stage Guides
Qualification Assessment	Old Capital Metro	Construction Ruins
Abandoned Skyscraper	Withering Garden	Nineveh

Abandoned Skyscraper Devices and Countermeasures

A Stage Where Careful HP Management is Key to Survival

In the Abandoned Skyscraper, numerous events can either restore or diminish your party members' HP, making HP management crucial. The item "Concentrated Treatment," available at the start of the stage, allows you to restore 10% HP to all party members whenever you choose.

Tips!	If you receive Concentrated Treatment from the Dark Doctor, exercise caution, as each treatment will decrease your party members' HP by 20%.

Damage Dealt Increases Based on the Reduction in the Character's HP

Resonia Collection	Effect
[Research] Trigger Instinct	For every 1% of the Agent's HP lost, the damage dealt increases by 1% (up to a maximum of 80%).

The Abandoned Skyscraper exclusive Resonia Collection includes Trigger Instinct, damage increases will be given to each character according to their current HP. Unlike Old Capital Metro and Construction Ruins, buff effects do not stack, so you must always maintain low HP.

HP Can Be Recovered at Supply Bases and Concentrated Treatments

At the supply base, which is accessible after defeating the boss on each floor, you can restore 20% of all your squad members' HP at the central square. Additionally, the "fully automated medical pod" in front of the bank can balance the HP across all squad members, making it ideal to use when there's a significant discrepancy in HP between them.

Recovers HP Squares Available at Supply Bases

Mass	Effect
Chance Encounter	Recover 20% HP of all squad members. If there are squad members with high Trust Levels, there is a probability that Special Events will occur
Fully Automatic Medical Pod	Averages the current HP of all squad members
Swift Supply	You can select the effect from below - Pressure-20 - HP 10% recovery - Obtain 500 gear coins

Abandoned Skyscraper Tips

Fight While Maintaining HP Below 50%

▲Trigger Instinct can perform a catalytic reaction at the supply base on the third floor

The buff effect varies based on your current HP in the Abandoned Skyscraper. Adjust your HP to below half to ensure the damage dealt is increased by 50% or more. This effect is effective up to 80% (when HP is 20% or less), so you can further reduce your HP depending on your training status and fighting style.

Use Bank Deposits When You Want to Reduce Your HP

You can deposit 10% HP instead of Gear Coins at the Zero Bank on the left side of the supply base. There are many ways to recover HP at the supply base, so if your HP increases too much, use the medical pod to average everyone's HP, and then adjust the HP by depositing money.

Tips!	The Zero Bank offers more permanent benefits the more you use it, so generally, make sure to use it every time to accumulate points.

You Can Only Choose One Route

In the Abandoned Skyscraper map, you can only choose one of the two routes. Since you will step on every square along the chosen route, make your selection considering your current HP and the events on each square.

Best Team Composition and Resonia Collection for Abandoned Skyscraper

Ice Attribute Team is Recommended

Recommended Leader
Recommended Squad Members

In the Abandoned Skyscraper, the Twin Marionettes on the final floor are formidable enemies, so it's recommended to form your squad with characters that have the Ice Attribute, which is their weakness. If you don't have an Ice Attribute attacker, make sure to designate an attacker with an attribute other than Fire as your leader.

Recommended Resonia Collection Emblems

Emblem	Features
Shield	- Generate a Shield according to the HP and DEF - Increased firepower while Shield is occurring - Even with its low HP, you can fight without worrying about getting hit
Freeze	- Ice DMG strengthened - Improve Attribute Anomaly grant efficiency of Freeze - Additional effects occur during Freeze - Change according to the leader's attribute
Energy	- Energy and Decibels acquisition efficiency is increased - Damage of each skill has been strengthened - Special Attack and Gathering Skills become easier to use
Dodge	- Dodge performance and damage after dodge are increased - Damage dealt +45% when Counterattack effect is activated - S-Rank Skateboard is powerful because you can get 4 seconds of Vital View
Support	- Perfect Assists or Assist Follow-Up has been greatly enhanced - Energy recovery and Shield can also be added - The final boss (Twin Marionettes) is easy to parry and has good compatibility

There are 5 types that is recommended in the Resonia Collection for the Abandoned Skyscraper which includes Shield, Freeze, Energy, Dodge, and Support. Unlike other stages, the battles focus on low HP, so prioritize collecting Shields to improve stability.

Abandoned Skyscraper Unlock Conditions

There Are Three Unlock Conditions for the Abandoned Skyscraper Stage

The conditions to unlock the Abandoned Skyscraper are: completing Main Story Chapter 3, Construction Ruins: Frontline, and the sub quest Towering Dome of the Void. The sub quest will automatically become available once the first two conditions are met, so if the Abandoned Skyscraper isn’t unlocked after completing Chapter 3, continue progressing through Construction Ruins.

Each Difficulty Level of Abandoned Skyscraper is Unlocked by Level

After unlocking the Abandoned Skyscraper stage, a new difficulty level will be unlocked depending on your Inter-Knot Level. You can also earn Inter-Knot Credit (Experience Points) when you clear it for the first time, so aim to clear it once it is released.

Zenless Zone Zero Related Articles

Collectibles

Collectibles
Mewmew	HIA Coins	Cargo Trucks

Training and Challenges

Training
Combat Simulation	Routine Cleanup	Expert Challenge
Challenges
Notorious Hunt	Hollow Zero	Shiyu Defense

Weekly Bosses Guide
Dead End Butcher	Unknown Corruption Complex	Twin Marionettes

Useful Guides