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Threshold Simulation - Myriad Endgame is new combat in Zenless Zone Zero (ZZZ) 2.6. See all the guides on all hard battle modes, as well as the easy ones, and how to play Threshold Simulation here!
List of Contents

A new mode in Threshold Simulation, called Myriad Endgame, was released in Version 2.6, on February 6, 2026.
Additionally, the user interface of Threshold Simulation, as well as the endings and stages themselves, will have various optimizations.
| Battle | Stages | Wk. | Res |
|---|---|---|---|
| Battle 01 | Final Stage | ||
| Required 1-1 | |||
| Required 1-2 | |||
| Optional 1-3 | None | ||
| Battle 02 | Final Stage | ||
| Required 2-1 | |||
| Required 2-2 | |||
| Optional 2-3 | |||
| Last Node (Ending 1) | Final LAST NODE | ||
| Required 3-1 | |||
| Required 3-2 | |||
| Required 3-3 | |||
| Optional 3-4 | |||
| Last Node (Ending 2) | Final Stage | ||
| Required 3-1 | |||
| Required 3-2 | |||
| Required 3-3 | |||
| Optional 3-4 |
| Battle | Stages | Wk. | Res |
|---|---|---|---|
| Battle 01 | Final Stage | None | |
| Required 1-1 | |||
| Battle 02 | Final Stage | ||
| Required 2-1 | |||
| Optional 2-2 | None | ||
| Battle 03 | Final Stage | ||
| Required 3-1 | None | ||
| Required 3-2 | |||
| Optional 3-3 | |||
| Last Node | Final Stage | ||
| Required 4-1 | |||
| Required 4-2 | |||
| Optional 4-3 |
| Final Stage Boss Information | ||
|---|---|---|
Wandering Hunter
|
Wk. | |
| Res. | ||
| Enemy Details | ||
| • Suitable for Agents with the Rupture specialty. • Wandering Hunter's Base DEF increases by 40% in Miasmic Field; when an Agent hits Wandering Hunter with Assist Follow-Up or Dodge Counter, 1 stack of Wavering is applied. Wavering can stack up to 5 times and lasts 15 seconds. Repeated triggers reset the duration. • When an Agent's attacks hit Wandering Hunter, for each stack of Wavering, the Agent's Sheer DMG is increased by 7%. • During the hide-and-seek phase, using Perception Technique to break Drowned Ideal Lucia's true form will grant 3,000 Performance Points. Exposing his true form and activating Defensive Assist or Assist Follow-Up against Wandering Hunter will grant 2,000 Performance Points, up to a maximum of 5,000 points. |
||
When the Wandering Hunter disappears and the drowned Lucia plays the hide-and-seek game, use the Revelation technique and find the illusion with the glowing purple aura.
Afterwards, immediately parry the Hunter's strike to impair it! You can gain about 5,000 Performance Points from performing this.
A lot of the Wandering Hunter's attacks have golden attack cues, which makes them perfect for Defensive Assists. Be sure to do so as often as you can!
| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
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| Multiplier |
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| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
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| Multiplier |
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| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
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| Multiplier |
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| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Final Stage Boss Information | ||
|---|---|---|
Ye Shiyuan The Thrall
|
Wk. | |
| Res. | ||
| Enemy Details | ||
| • Suitable for Agents with Stun specialty. • When Sobek and The Thrail alternate turns, The Thrall gains 1 stack of Contract and Self-Sacrifice. Contract and Self-Sacrifice can stack up to 3 times. Each stack of Contract increases All-Attribute Anomaly RES by 15%, each stack of Self-Sacrifice reduces The Thrall's DEF by 8%. When The Thrall is Stunned, CRIT DMG taken increases by 50%. • When Agents inflict Weakened on Sobek and The Thrall, 1,500 Performance Points will be awarded. When an Agent eliminates Sobek, 2,000 Performance Points will be awarded. Up to a maximum of 5,000 Performance Points can be earned. |
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During certain points in the fight, especially in the beginning, Ye Shiyuan and its Ethereal called Sobek will fly off the field and around it to do a joint attack against you. Though these Fusion Attacks may vary, some of them will be perfectly parryable.
Doing so will put the pair in a special weakened state for a certain duration, allowing you to follow up with your own attacks! Hence, when fighting Ye Shiyuan the Thrall, make it a point to bring along Agents that can initiate Defensive Assists!
| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Alternative Agents | ||
|---|---|---|
Soldier 11 | Koleda | Orphie and Magus |
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Final Stage Boss Information | ||
|---|---|---|
Vesper
|
Wk. | |
| Res. | ||
| Enemy Details | ||
| • When Discordant Solo is being attacked, the CRIT DMG of this attack decreases 40%. When an Agent deploys or extends the duration of Ether Veil in battle, the whole squad gains 1 stack of Sonic Resonance. Sonic Resonance stacks up to 3 times, and each stack increases Anomaly Buildup Rate by 8%, as well as Anomaly DMG by 15%. • During a Control Skill, every successful counter of a Boss attack grants 350 Performance Points. A Shutdown of the Boss's Control Skill or counter of the final strike of certain skills inflicts on the Boss the Impaired effect and grants 750 Performance Points. Earn up to 5,000 Performance Points from the above. |
||
| How to Parry Vesper's Control Skill |
|---|
| Wait → Dodge → Parry → Parry → Parry → Pause → Parry |
One particular attack of Versper's that you need to keep your eyes peeled for is her Control Skill, similar to the Primordial Nightmare's. This skill has no attack cues, so it's best observe each hit carefully.
| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Final Stage Boss Information | ||
|---|---|---|
Primordial Nightmare
|
Wk. | |
| Res. | ||
| Enemy Details | ||
| • Suitable for Agents with Attack specialty. • Boss Anomaly DMG taken is reduced by 30%. When switching from Miasmic Shield state to normal state, or from normal state to Miasmic Shield state, Agent CRIT DMG against them is increased by 20%. This effect can stack up to 3 times and resets when the boss recovers from Stun. • Triggering Miasmic Shield Purification grants 1,000 Performance Points. During the Control Skill, each successful counter against the Boss's attacks grants 500 Performance Points. Performing a Shutdown on the Boss's Control Skill grants 2,000 Performance Points. Maximum obtainable Performance Points: 5,000. |
||

Getting hit with a Control Skill will limit your options in battle, so be sure to avoid their first phase using Dodges and Perfect Assists. You will then need to counter the consecutive attacks that follow by timing your assists.
Avoiding these attacks will be a bit more challenging than usual since they will have no flash indicators when used.
| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Alternative Agents | ||
|---|---|---|
Soldier 11 | Pulchra | Seed |
Manato | ||
| Multiplier |
|
|---|---|
| Objectives |
|
| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Multiplier |
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|---|---|
| Objectives |
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| Enemies & Weaknesses |
|
| Best Teams & Bangboo | Buff |
|---|---|
| Final Stage Boss Information | ||
|---|---|---|
Notorious - Dead End Butcher
|
Wk. | |
| Res. | None |
|
| Enemy Details | ||
| • DMG dealt to boss enemies by Attribute Anomaly is increased by 50%. While Notorious - Dead End Butcher is in Ether Enhanced state, the DMG it takes is reduced by 15%, and the Daze value dealt by Agents to it is reduced by 30%. Triggering Disorder on Notorious - Dead End Butcher immediately forces it to exit the Ether Enhanced state.
• Successfully triggering Perfect Dodge grants 200 Performance Points. A maximum of 5,000 Performance Points can be obtained. • When an extra score multiplier is active in this stage, the Performance Points cap will increase accordingly. |
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The Notorious Dead End Butcher will disappear momentarily, then an attack cue will appear. Counter it by executing a Perfect Dodge or switching via a Perfect Assist.
This variant of the Dead End Butcher can also gather what looks like ether into a ball; it will follow you and explode. It will chip a lot of HP off your agents, so best dodge it before it explodes.
The Notorious Dead End Butcher will gather ether in their hammer, and once it's full, they will unleash a torrent of attacks that can only be countered by switching via a Perfect Assist and repeatedly pressing the attack button.
| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Final Stage Boss Information | ||
|---|---|---|
Notorious - Pompey
|
Wk. | |
| Res. | ||
| Enemy Details | ||
| • When the Agent hits the boss enemy with a Defensive Assist or Chain Attack, they applies 1 stack of Weakening to the target. For each stack of Weakening on the target, Agent CRIT DMG is increased by 10%.
When the boss enemy has 4 stacks of Weakening, Defensive Assist will deflect the boss enemy's attack, causing a Stagger effect. • Successfully triggering Perfect Assist grants 300 Performance Points. A maximum of 5,000 Performance Points can be obtained. • When an extra score multiplier is active in this stage, the Performance Points cap will increase accordingly. |
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Notorious Pompey will have the gold or red Perfect Assist cues during its AoE attacks and launch to an Agent with a quick strike—Counter Notorious Pompey's attacks with Perfect Assists or Dodge Counters.
Build up the Weakening stacks using Chain Attacks and Defensive Assists. Use the Defensive Assist at four stacks to stagger the boss and make an opening; use Agent Ultimates when it's stunned.
You can also earn more Performance Points by landing Perfect Assists; therefore, using the attack cues to counter is essential.
| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Final Stage Boss Information | ||
|---|---|---|
Typhon Destroyer
|
Wk. | |
| Res. | ||
| Enemy Details | ||
| • Agents inflict Overwhelmed when landing a Defensive Assist hit against a Boss enemy, and 3 stacks of Overwhelmed when accumulating 3 Defensive Assist hits and triggering Impaired. Each stack of Overwhelmed increases Daze by 15%, and Chain Attack and Ultimate DMG taken while Stunned by 10%. The enemy will fix the impaired parts and reset the impairment level while charging, and will reset its Overwhelmed stacks after recovering from Stun.
• Assist Points are not consumed for this battle. • Successfully triggering a Perfect Assist grants 200 Performance Points. • Successfully causing Impaired grants 600 Performance Points. A maximum of 5,000 Performance Points can be obtained. • When an extra score multiplier is active in this stage, the Performance Points cap will increase accordingly. |
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From the get-go, expect the Typhon Destroyer to be increasingly aggressive in its attacks, so it's best to either dodge or do assists to avoid tanking too much damage against this enemy.
The best way to defeat the Typhon Destroyer is to inflict the Shock effect, slow it down, and stagger it. This will give you the opportunity to beat it a lot faster!
| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Final Stage Boss Information | ||
|---|---|---|
Miasma Priest
|
Wk. | |
| Res. | ||
| Enemy Details | ||
| • When the Miasma Priest switches phase, their Anomaly Buildup RES increases by 10% and CRIT DMG taken increases by 30%. This effect can stack up to 2 times and is cleared when Miasmic Shield breaks.
• When an Agent successfully performs 3 Defensive Assists within 3 seconds, earn 1,000 Performance Points. A maximum of 5,000 Performance Points can be obtained. • When an extra score multiplier is active in this stage, the Performance Points cap will increase accordingly. |
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To gain a maximum of 5,000 Performance Points, you must continuously perform three consecutive Defensive Assists during the Miasma Priest's barrage of attacks.
Whenever the Miasma Priest reels away to gather power, counter it by activating an agent's ultimate as it strikes to avoid taking damage while also dealing it.
| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
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| Best Teams & Bangboo | Buff |
|---|---|
| Objectives |
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|---|---|
| Enemies & Weakneses |
| Best Teams & Bangboo | Buff |
|---|---|

When progressing through Threshold Simulation, Agents and Bangboo cannot be used again within a battle node. Each stage within a battle node will require unique teams.
Due to this restriction, you will need to take a look at enemy weaknesses and plan your teams accordingly.

Each stage in Threshold Simulation will come with a set of buffs you can apply to your team. Choose the one that works best with your current lineup for a better chance at clearing all objectives.

Clearing fights before the final one in each battle node will increase your score multiplier against the boss. Clearing most of these encounters is required to continue progress, but some will be optional.

Once you take on the boss of a battle node, aim for a high score to ensure you get all of the rewards. To do this, be sure to once again select the appropriate buff for the team you are using and take advantage of boss mechanics.

Threshold Simulation - Branching Echoes is a new game mode coming in Version 2.3. Here, you might fight through Combat Nodes that have three stages within and make a choice to reach an ending in Story Nodes!
| Easy Mode Rewards |
|---|
You can earn up to 380 Polychromes by completing all objectives in Threshold Simulation Easy Mode. Easy Mode is available permanently and rewards do not reset.
| Hard Mode Rewards |
|---|
You can earn up to 500 Polychromes by completing all objectives in Threshold Simulation Hard Mode. Hard Mode is only available for set periods and rewards do reset with each new period.
| Zenless Zone Zero 2.3 Release Date | |
|---|---|
![]() |
|
| Release Date | October 15, 2025 |
Threshold Simulation: Branching Echoes was released on October 15, 2025 during Version 2.3. The new combat mode was first announced during the 2.3 Livestream.
2.3 Release Date and Banners Guide
Threshold Simulation - Myriad Endgame Combat Guide

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