What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Zenless Zone Zero (ZZZ)

How to Collect Observation Data

Add to Watchlist

☆ New: Tier List Maker & Community Tier List Contest!
★ Upcoming: Version 2.5, Zhao, & Ye Shunguang!
2.4 Agents: Dialyn, & Banyue
2.3 Phase 2: Yidhari Release & Ju Fufu Rerun
☆ Tier Lists: Agents | W-Engines | Bangboos | Teams
Redeem Codes for free Polychromes!

Zenless Zone Zero How to Collect Observation Data

Observation Data are crucial materials you can collect scattered throughout the Hollows in Zenless Zone Zero (ZZZ). See how to collect Observation Data in the Hollows, and where else you can collect them.

How to Collect Observation Data

Where to Collect How to Collect
Story & Exploration Commissions Recommended: ★★★
・Collect Golden Coins while exploring the Hollow
・You can collect up to 3 per Commission
Combat Commissions Recommended: ★★☆
・Collect by completing target objectives
・ You can collect up to 3 per Commission
Officer Mewmew Recommended: ★☆☆
・Minor missions that you can complete within the city.
・You can collect 1 per completed mission.

Story and Exploration Commissions

Observation Data in the Hollow

Whenever in a Story or Exploration commission, it is recommended to collect all the gold coin-like events in the Hollow. Every commission will have 3 Observation Data you must collect to get what is essentially, a 3-star rating of completing the commission.
List of Commissions

Can also be obtained from Agent Commissions

You can also collect Observation Data from completing Agent Commissions, which are the backstory of each character. You can check out Agent Commissions in by inspecting the Video Archive in the office of Random Play.

List of Agent Commissions

Gold Gear Coins are a different item

Observation Data Gold Gear Coin
Observation Data Gold Gear Coin

There are also events in the Hollow that may seem like Observation Data, but they are not. These orange coins with jagged edges are called Gear Coins and are used to unlock gimmicks in the Hollow.

Complete Combat Commissions

Combat Commision Observation Data

Combat Commissions will have a list of target objectives for you to complete, in return you get Combat Observation Data. Each Combat Commission can give you up to 3 Combat Observation Data.

These usually include completing the mission within a time limit, or without an agent dying or losing a certain amount of HP.
List of Combat Commissions

Collect Mewmew Medals

Officer Mewmew Medal
You can also collect Observation Data by completing the tasks that Officer Mewmew has. It only yields 1 Observation Data per task completed, making it rather inefficient considering the time you have to put in completing the task.
Mewmew Medal Locations and Challenges

What is Observation Data?

Material Used to Rank Up Inter-Knot

Inter-Know Rank-Up

Observation Data is used to determine whether or not you are qualified to rank up your Inter-Knot Level.

How to Rank-Up Inter-Knot Level

Two Types of Data: Exploration Observation Data and Combat Observation Data

Story v Combat Observation Data
Story/Exploration Observation Data (Gold) Combat Observation Data (Pink)

There are two types of Observation Data you can collect. Gold Observation Data is collected from Story and Exploration Commissions, while Pink Observation Data is collected after completing target objectives in Combat Commissions.

Zenless Zone Zero Related Guides

Zenless Zone Zero - Tips and Tricks

Tips and Tricks Guide

All Zenless Zone Zero Tips and Tricks

Gameplay Guides
How to Level Up Characters How to Build and Enhance Characters
How to Ascend (Promote) Characters How to Recover Battery Charge
How to Raise Your Inter-Knot Level All Inter-Knot Level Rewards
Daily and Weekly Server Reset Times How to Change the Time
List of All Achievements Trophy Guide
Missing Mini Cargo Truck Locations and Rewards Reroll Guide
Microtransactions and Best In-App Purchases How to Increase Agent Trust Level
Fast Travel Guide: How to Teleport How to Modify and Upgrade W-Engines
How to Gain Energy How to Heal Characters
Compendium Guide List of Primer Trials and All Rewards
Best Standard Banner Character Guide How to Get Promoters for Random Play
Exploration Elements Workbench Guide
How to Level Up Drive Discs How to Upgrade Core Skills
How to Pet Cats Public Telephone Guide
How to Change Your Name All Stats Explained
How to Raise Your Proxy Rank Immersive Storytelling Mode Guide
How to Get and Change Namecards Skill Enhancement Guide
How to Take Pictures How to Level Up and Ascend Bangboos
Best Battery Priority Guide Best A-Rank W-Engine to Get from the Bundle
San-Z Studio and Display Stand Guide Special Training Plan Guide
Journey System Explained Burnout Guide
Proxy Wardrobe Guide All Skins and Outfits
All Summer Skins -
Combat Guides
Basic Combat Guide How to Daze and Stun
Chain Attack Guide Ultimate and Decibel Rating
Perfect Dodge and Counter Perfect Assists and Parries
Attribute Anomaly What are Additional Skills?
How to Destroy Enemy Parts How to Do EX Special Attacks
How Do Shields Work? Aftershock
How to Do an Assist Counter How to Do a Double Chain Attack
How to Do a Shoulder to Shoulder Attack -
Items and Collectibles
How to Farm Polychromes How to Get and Use Residual Signal
How to Get and Use Fading Signal How to Get and Use Encrypted Master Tape
Best Ways to Farm Denny (Money) How to Get and Use HIA Commemorative Coin
How to Get and Use W-Engine Chip How to Get and Use Ether Battery
How to Get and Use Boopon How to Get and Use Bangbuck
How to Get and Use Monochrome Exclusive Skins for W-Engines
How to Get Dynamic Wallpapers How to Collect Observation Data
How to Use Photowall How to Get Cat Food Cans
HIA Coins Sixth Street Locations HIA Coins Brant Street Locations
HIA Coins Lumina Square Locations HIA Coins Ballet Twins Road Locations
HIA Coins Blazewood Locations HIA Coins Port Elpis Locations
Game Modes and Dailies
Dailies - Errands Guide Hollow Deep Dive Explained
Officer Mewmew Medal Locations and Challenges Notorious Hunt Guide
Routine Cleanup Guide Casual vs Challenge Mode
Frequently Asked Questions
Should You Choose Belle or Wise? Does Zenless Zone Zero Have Crossplay?
Are There Multiplayer Features? How to Transfer Data
How to Exit the Game How to Play With Controller on PC/Mobile
Birthday Guide: What Do You Get On Your Birthday Which Server Should I Use?
New Eridu City Fund Battle Pass Guide Can You Reset an Account?

Comment

1 Anonymous Anonymous over 1 year

This was really helpful ! Thank youuu

Author

    Please participate in our site
    improvement survey
    12/2025
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey

    All rights reserved

    Guide Index