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Zenless Zone Zero (ZZZ)
Holographic Onslaught Arena Event Guide
☆ New: Tier List Maker & Co-Op Board!
★ Upcoming: Version 2.6, Sunna, & Aria!
☆ 2.5 Debut: Ye Shunguang & Zhao
★ 2.5 Rerun: Alice, Soldier 0 Anby, & Astra
☆ Tier Lists: Agents | W-Engines | Bangboos | Teams
★ Redeem Codes for free Polychromes!
Holographic Onslaught Arena is a combat event in Zenless Zone Zero (ZZZ) 2.0. See the event schedule, how to play it, and the rewards here!
| Holographic Onslaught Arena Event Guides | ||
|---|---|---|
 Day 1 |
 Day 2 |
 Day 3 |
 Day 4 |
 Day 5 |
 Special Offensive |
List of Contents
Holographic Onslaught Arena Event Information
Holographic Onslaught Arena Event Details
 |
|
| Event Start | June 13, 2025 |
|---|---|
| Event End | June 30, 2025 |
| How to Unlock | Reach Inter-Knot Lv. 22+ Unlock Expert Challenge |
| Event Rewards |
|
Holographic Onslaught Arena is a combat event where players can challenge various stages with different buffs.
Holographic Onslaught Arena Event Schedule
Holographic Onslaught Arena Combat Stages
| Day | Unlock | Stages and Trial Agents |
|---|---|---|
| 1 | June 13, 2025 |
|
| 2 | June 14, 2025 |
|
| 3 | June 15, 2025 |
|
| 4 | June 16, 2025 | 
|
| 5 | June 17, 2025 | 
|
Holographic Onslaught Arena's stages will unlock over time, starting from June 13, 2025.
How to Play Holographic Onslaught Arena
Holographic Onslaught Arena Guide
- Speak With Ju Fufu at Failume Heights
- Clear Stages at the HIA
- Use Featured Agents in Special Offensive Stages
Speak With Ju Fufu at Failume Heights
Feng thinks he is ready to enter the next phase of his training by entering a Hollow. Speak with Ju Fufu to start the event and help train the Yunkui Summit junior!
Clear Stages at the HIA
Head to the HIA Club and speak with Lyla to participate in the event. Your goal here is to clear the different combat stages with varying difficulties - Alliance, Frontline, and Special Offensive.
Alliance stages are relatively easier and need to be cleared to unlock the corresponding Frontline stage. Each stage will have its own set of Tactical Buffs and Trial Agents.
Use Yixuan and Ju Fufu in Special Offensive Stages
Special Offensive Stages will also become available as you play through the event. For these stages, you will be limited to using Yixuan and Ju Fufu.
You can use this as an opportunity to test the new and upcoming characters while grabbing some extra rewards!
Holographic Onslaught Arena Event Rewards
Total Holographic Onslaught Arena Rewards
| All Event Rewards | |||
|---|---|---|---|
|
Polychrome
x350 |
Tuning Calibrator
x1 |
 Denny
x120,000 |
Bangboo System Widget
x12 |
|
Senior Investigator Log
x6 |
Official Investigator Log
x20 |
 W-Engine Power Supply
x10 |
Advanced Burn Chip
x16 |
Completing all Alliance, Frontline, and Special Offensive challenges rewards a Tuning Calibrator!
Total Rewards For Every Category
| Category | Rewards |
|---|---|
| Ultimate |
Polychrome
x40 Denny
x15,000 |
| Abloom |
Polychrome
x40 Denny
x15,000 |
| Chain Attack |
Polychrome
x40 Denny
x15,000 |
| Totalize |
Polychrome
x40 Denny
x15,000 |
| Aftershock |
Polychrome
x40 Denny
x15,000 |
| Special Offensive |
Polychrome
x150 Denny
x45,000 |
Battle Pass Rewards
| Requirements | Rewards |
|---|---|
| Clear all “Alliance” and “Frontline” stages in the event “Holographic Onslaught Arena” event |  x1600 |
You can earn 1,600 City Fund EXP after completing all stages, which can help level up your Battle Pass for more rewards!
New Eridu City Fund Battle Pass Guide
Zenless Zone Zero Related Guides
Ongoing Events
| Event Guide | Event Duration | |
|---|---|---|
 Data Bounty - Combat Simulation
|
12/24/2025 - 12/29/2025 | |
 Coronation of the Void Hunter
|
12/19/2025 - 12/30/2025 | |
 En-Nah Into Your Lap
|
12/17/2025 - 12/29/2025 | |
 The Final Callback
|
12/17/2025 - 12/29/2025 | |
 100% Miss Bunny
|
12/17/2025 - 12/29/2025 | |
 Simulated Sequence Showdown
|
12/08/2025 - 12/29/2025 | |
 Lightstream Notes
|
12/03/2025 - 12/29/2025 | |
 Neo Golden Mecha
|
11/28/2025 - 12/29/2025 | |
 All-New Program
|
11/26/2025 - 12/29/2025 | |
 En-Nah Chess Saga
|
11/26/2025 - 12/29/2025 | |
 Signal Search Thank-You Gift
|
10/15/2025 - 12/30/2025 | |
Upcoming Events
| Event Guide | Event Duration | |
|---|---|---|
 Angels and Delusions of Muse
|
Sometime in Version 2.5 | |
 Filmgoer Thank You
|
Sometime in Version 2.5 | |
 Joint Investigation - The Divine Maze
|
Sometime in Version 2.5 | |
 Wish Filing Station
|
Sometime in Version 2.5 | |
 Sword Seeker Chronicles
|
Sometime in Version 2.5 | |
 Shadow Riptide Clash
|
Sometime in Version 2.5 | |
 Special Visitor
|
12/30/2025 - End of 2.5 | |
Permanent Events
| Event Guide | How To Unlock/Rewards |
|---|---|
 Road to Proxy Greatness |
Reach Inter-Knot Level 8. |
 Rookie on the Road |
Reach Inter-Knot Level 8. |
Past Events
| Event Guide | Event Duration | |
|---|---|---|
 141 Battery Artwork
|
07/05/2025 - 07/15/2025 | |
 141 Eco Art Exhibition
|
11/12/2025 - 11/24/2025 | |
 141 Exclusive Bazaar
|
08/02/2024 - 08/12/2024 | |
 141 Friendship Fair
|
10/27/2024 - 11/04/2024 | |
 141 Going Green for Everyone
|
02/26/2025 - 03/10/2025 | |
 A Dream Come True at Last
|
01/24/2025 - 02/05/2025 | |
 A Tale Through the Looking Glass
|
05/19/2025 - 06/05/2025 | |
 Advanced Bounty - Area Patrol
|
12/11/2025 - 12/16/2025 | |
 Band of Brave Bangboo
|
09/05/2025 - 10/13/2025 | |
 Bangboo Bash
|
04/27/2025 - 05/12/2025 | |
All Web Events
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Holographic Onslaught Arena Event Guide
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