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Zenless Zone Zero (ZZZ)

Critical Node Guide for Version 2.6

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☆ New: Tier List Maker & Co-Op Board!
★ Upcoming: Version 2.7, Nangong Yu & Cissia
2.6 Phase 1: Sunna & Yixuan
2.6 Phase 2: Aria & Yuzuha
☆ Tier Lists: Agents | W-Engines | Bangboos | Teams
Redeem Codes for free Polychromes!

Zenless Zone Zero Critical Node Guide for Version 2.5

Critical Node is the second node of Shiyu Defense in Zenless Zone Zero (ZZZ) that consists of seven stages. Check out when it resets, all the frontier guides, the best characters for each stage, and all the rewards here!

Endgame Guides
Shiyu Defense IconShiyu Defense Deadly Assault IconDeadly Assault

Critical Node Latest News

Restructuring and Updated Fifth Node

Restructured Critical Node

Critical Node of Shiyu Defense updated their stage structure in Version 2.5, reducing the frontiers from 7 to 5.

In this new Critical Node mode, the Fifth Frontier is upgraded. In order to gain higher rankings, Proxies will now have to defeat waves upon waves of enemies as fast and as much as possible, which means a high DMG output is key to winning.

The Upgraded Fifth Frontier

Restructured Critical Node Fifth Frontier

In the upgraded Fifth Frontier, Proxies will be required to complete 3 different stages, each with their own unique enemy lineups and bosses.

The new scoring parameter is based on DMG dealt, so having a higher DMG output is your key to a higher ranking. The higher your DMG output, the faster you can annihilate waves of enemies. The more waves you defeat, the higher your score will be.

2.5 Release Date and Banners

Critical Node Reset Date and Countdown

Critical Node Resets on March 6

Critical Node Reset Date and Countdown
March 6, 2026

Critical Node resets every other Friday. This resets all your progress in Critical Node so that you will be able to collect rewards again upon completion.

This Phase of Critical Node will reset on March 6, 2026.

Shiyu Defense Guide and Reset

Critical Node Stage Effects

Current Stage Effect

Frontier Info
• While in Ether Veil, Agent ATK increases by 25% and CRIT DMG increases by 20%.
• When Agents hit enemies, they ignore 10% of enemy Physical RES.
Next Reset 03/06/2026 - 04:00

In response to Critical Node's reset time, its Stage Effects also change in turn. This current Stage Effect for Critical Node is applied to all of its Frontiers.

Future Effects and Phases

Phase Effects
II
02/20
While in an Ether Veil, the Agent's ATK increases by 25% and CRIT DMG increases by 20%.
When an Agent hits enemies, ignore 10% of their Physical RES.
Agent's Ice DMG increases by 20%, Basic Attack DMG increases by 40%.
After an Agent uses an EX Special Attack, the Agent's Ice DMG additionally increases by 20% for 15s. Repeated triggers reset the duration.
Agent Max HP increases by 15%, Fire DMG and Ether DMG increase by 20%.
After the Agent activates their Ultimate, Sheer DMG increases by 15% for 20s. Repeated triggers reset the duration.
III
03/06
Agent Physical DMG and Electric DMG increase by 15%, CRIT DMG increases by 20%.
When an Agent with Attack specialty lands a critical hit on an enemy, enemy DEF is reduced by 10% for 5s. Repeated triggers reset the duration.
Agent Sheer DMG increases by 10%.
While in Ether Veil, Agent Sheer DMG further increases by 15%, and attacks ignore 15% of enemy All-DMG RES on hit.
Agent Ether DMG increases by 20%.
While in Ether Veil, Agent ATK increases by 30%, and attacks ignore 10% of enemy Ether DMG RES.
IV
03/20
Agent ATK increases by 30%, CRIT DMG increases by 15%.
Enemies' Stun DMG Multiplier increases by 20%.
Agent Ether DMG increases by 20%.
After inflicting Attribute Anomaly on an enemy, the Agent restores 20 Energy and all squad members' ATK increases by 35% for 15s. Repeated triggers reset the duration. This effect can trigger once every 20s.
Agent Ice and Ether DMG increase by 15%.
While Agents are in an Ether Veil, CRIT DMG increases by 40% and Sheer DMG increases by 20%. These buffs are removed when exiting Ether Veil.

How to Unlock Critical Node

Clear Stable Node: Tenth Frontier

Zenless Zone Zero - Stable Node Guide

Critical Node is unlocked after clearing Stable Node: Tenth Frontier in Shiyu Defense.

Stable Node Guide

Shiyu Defense 11

Critical Node First Frontier Details

Objectives
ZZZ - S - More than 300s remaining
ZZZ - A - More than 180s remaining
ZZZ - B - Defeat all enemies
Best Attributes 1st Half:

2nd Half:
Enemies 1st Half:

2nd Half:

Shiyu Defense 11 Critical Node Guide

Critical Node First Frontier Best Characters

First Half Teams Second Half Teams
Ye Shunguang Icon Dialyn Icon Sunna Icon
Miyabi Icon Vivian Icon Astra Icon
Yuzuha Icon Burnice Icon Alice Icon
Zhu Yuan Icon Qingyi Icon Nicole Icon
Jane Icon Burnice Icon Caesar Icon
Lighter Icon Lycaon Icon Hugo Icon
Corin Icon Ben Icon Anby Icon
Billy Icon Soukaku Icon Nicole Icon

Other Recommended Characters

1st Half
Nekomata Icon Lucy Icon Piper Icon Seth Icon Pulchra Icon
2nd Half
Ellen Icon Zhao Icon

Shiyu Defense 12

Critical Node Second Frontier Details

Objectives
ZZZ - S - More than 300s remaining
ZZZ - A - More than 180s remaining
ZZZ - B - Defeat all enemies
Best Attributes 1st Half:

2nd Half:
Enemies 1st Half:

2nd Half:

Shiyu Defense 12 Critical Node Guide

Critical Node Second Frontier Best Characters

First Half Teams Second Half Teams
Ye Shunguang Icon Dialyn Icon Sunna Icon
Miyabi Icon Vivian Icon Astra Icon
Banyue Icon Pan Yinhu Icon Dialyn Icon
Yixuan Icon Pan Yinhu Icon Lucia Icon
Ju Fufu Icon Sunna Icon Evelyn Icon
Yidhari Icon Lycaon Icon Lucia Icon
Alice Icon Burnice Icon Yuzuha Icon
Billy Icon Soukaku Icon Nicole Icon
Corin Icon Ben Icon Anby Icon

Other Recommended Characters

1st Half
Nekomata Icon Soldier 11 Icon Lucy Icon Piper Icon Jane Icon
2nd Half
Ellen Icon Zhu Yuan Icon Yanagi Icon Lighter Icon Hugo Icon Zhao Icon

Shiyu Defense 13

Critical Node Third Frontier Details

Objectives
ZZZ - S - More than 300s remaining
ZZZ - A - More than 180s remaining
ZZZ - B - Defeat all enemies
Best Attributes 1st Half:

2nd Half:
Enemies 1st Half:

2nd Half:

Shiyu Defense 13 Critical Node Guide

Critical Node Third Frontier Best Characters

First Half Teams Second Half Teams
Dialyn Icon Lucia Icon Banyue Icon
Yuzuha Icon Miyabi Icon Vivian Icon
Zhao Icon Sunna Icon Ye Shunguang Icon
Lighter Icon Lycaon Icon Hugo Icon
Astra Icon Evelyn Icon Dialyn Icon
Ju Fufu Icon Yixuan Icon Pan Yinhu Icon
Nicole Icon Ben Icon Corin Icon
Anby Icon Soukaku Icon Billy Icon

Other Recommended Characters

1st Half
Nekomata Icon Soldier 11 Icon Koleda Icon Orphie and Magus Icon Manato Icon
2nd Half
Zhu Yuan Icon Qingyi Icon

Shiyu Defense 14

Critical Node Fourth Frontier Details

Objectives
ZZZ - S - More than 300s remaining
ZZZ - A - More than 180s remaining
ZZZ - B - Defeat all enemies
Best Attributes 1st Half:

2nd Half:
Enemies 1st Half:

2nd Half:

Shiyu Defense 14 Critical Node Guide

Critical Node Fourth Frontier Best Characters

First Half Teams Second Half Teams
Ye Shunguang Icon Dialyn Icon Sunna Icon
Miyabi Icon Vivian Icon Astra Icon
Ju Fufu Icon Sunna Icon Evelyn Icon
Yidhari Icon Pan Yinhu Icon Lucia Icon
Alice Icon Burnice Icon Yuzuha Icon
Yixuan Icon Pan Yinhu Icon Lucia Icon
Corin Icon Anby Icon Ben Icon
Lighter Icon Lycaon Icon Hugo Icon
Billy Icon Soukaku Icon Nicole Icon

Other Recommended Characters

1st Half
Nekomata Icon Soldier 11 Icon Piper Icon Jane Icon Yanagi Icon Harumasa Icon Orphie and Magus Icon
2nd Half
Ellen Icon Zhu Yuan Icon Qingyi Icon Yanagi Icon Manato Icon Banyue Icon

Shiyu Defense 15

Critical Node Fifth Frontier Details

Challenge Target
S+ Grade - Get an S-rating in all rooms and achieve a total score of 100,000.
S Grade- Get an S-rating in all rooms
A Grade- Get an A-rating in all rooms
B Grade- Get a B-rating in all rooms
Objectives Per Room
S Grade- Reach 25000 points for the current room
A Grade- Reach 18000 points for the current room
B Grade- Reach 8000 points for the current room
Best Attributes Room 1:

Room 2:
Room 3:
Enemies Room 1:

Room 2:

Room 3:

Shiyu Defense 15 Critical Node Guide

Critical Node Fifth Frontier Best Characters

Room 1 Room 2 Room 3
Ye Shunguang Icon Dialyn Icon Sunna Icon
Miyabi Icon Vivian Icon Astra Icon
Ju Fufu Icon Yixuan Icon Pan Yinhu Icon
Astra Icon Evelyn Icon Orphie and Magus Icon
Ju Fufu Icon Lucia Icon Yidhari Icon
Lycaon Icon Lucia Icon Yidhari Icon
Dialyn Icon Lucia Icon Banyue Icon
Lighter Icon Lycaon Icon Hugo Icon
Lycaon Icon Sunna Icon Ellen Icon

Critical Node Rewards

List of Critical Node Rewards

Frontiers Rewards
1st
Denny Denny x45,000
2nd
Denny Denny x45,000
3rd
Denny Denny x45,000
4th
Denny Denny x45,000
5th
Denny Denny x45,000
Total
Denny Denny x315,000

What is Critical Node?

Shiyu Defense Stages

Shiyu Defense Guide - Take Down Enemies Within Time Limit
Critical Node is the second node you will play through in Shiyu Defense. These consist of seven stages that refresh on a regular basis, and you can challenge to collect up to 720 Polychromes.

Shiyu Defense Guide

Zenless Zone Zero Related Guides

Zenless Zone Zero - Shiyu Defense

Shiyu Defense Guide

Stable Node Guides

All Stable Node Stages
Frontier 1 Frontier 2 Frontier 3 Frontier 4 Frontier 5
Frontier 6 Frontier 7 Frontier 8 Frontier 9 Frontier 10

Stable Node Guide

Disputed Node Guides

All Disputed Node Stages
Frontier 1 Frontier 2 Frontier 3 Frontier 4
Frontier 5 Frontier 6 Frontier 7 Frontier 8

Disputed Node Guide

Critical Node Guides

All Critical Node Stages
Frontier 1 Frontier 2 Frontier 3
Frontier 4 Frontier 5

Critical Node Guide

Ambush Node Guides

All Ambush Node Stages
Frontier 1 Frontier 2 Frontier 3
Frontier 4 Frontier 5

Ambush Node Guide

Comment

5 Coyt Coyt 10 days

This site has become absolute garbage.

4 Anonymous Anonymous 23 days

Update for the new reset please

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