Mastering Zenless Zone Zero Anti-Infiltration: Complete Guide
Discover the challenging and rewarding Zenless Zone Zero Anti-Infiltration mode, featuring strategic tower defense gameplay, key units, and advanced tactics for success.
Zenless Zone Zero's Anti-Infiltration Assessment has become one of the game's most challenging yet rewarding gameplay modes in 2025. As players continue to navigate the complexities of this tower defense-style challenge, understanding the optimal strategies has become essential for success and earning valuable rewards.

What is Anti-Infiltration in ZZZ?
Anti-Infiltration Assessment is a specialized battle mode within the Band of Brave Bangboo event where players must strategically deploy Bangboo units to prevent Ethereals from reaching exit points. Unlike standard combat in Zenless Zone Zero, this mode functions as a tower defense system requiring careful unit placement, resource management, and tactical upgrades.
The mechanics focus heavily on anti hit positioning - placing your Bangboo units in locations where they can intercept enemies before they reach critical pathways. This requires understanding both the map layout and enemy movement patterns.
Essential Bangboo Units for Anti-Infiltration
Three key Bangboo units form the foundation of most successful Anti-Infiltration strategies:
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Mercury (Brave Bangboo) - Deployable on ground positions, Mercury can block up to 2 enemies while attacking. When upgraded, it blocks an additional enemy and can attack all blocked targets simultaneously. Mercury is essential for bush placements to reveal hidden enemies.
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Snap (Rapid Bangboo) - Perfect for elevated positions, Snap continuously attacks and slows enemies within range. Its advanced skill can immobilize enemies completely, making it invaluable for controlling fast-moving threats.
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Avocaboo (Kind Bangboo) - This support unit heals allies within range and, once upgraded, can restore Stamina to all nearby allies with expanded range and enhanced recovery.
Stage-by-Stage Anti-Infiltration Strategy
Stage 1: Fundamentals
The first stage introduces basic mechanics with just Snap and Plugboo available. Deploy them strategically to prevent fast and slow enemies from reaching the exit. This stage teaches fundamental placement concepts crucial for the anti hit mechanics in later stages.
Stage 2: Illusory Bushes
This stage introduces the concept of Illusory Bushes where enemies can hide. The key strategy involves placing Mercury inside these bushes to reveal hidden enemies. The Pre-emptive Tactical Chip becomes valuable here, reducing the ATK of enemies in bushes by 30%.
Stage 3: Expanded Deployment
With additional deployable Bangboo slots unlocked, players can now utilize Bangboo Promotion upgrades to access Advanced Skills. This significantly enhances your units' effectiveness against increasingly challenging waves of Ethereals.
Stages 4-6: Advanced Tactics
The later stages require maintaining Mercury Bangboos in the top row bushes at all times. Prioritizing Avocaboo upgrades keeps your Attack units alive longer, while upgrading Rapid Bangboos like Snap enhances their damage output and control capabilities.
Resource Management Tips
The Cost Reduction & Efficiency Resource Chip is particularly valuable, reducing the required Assessment Points for Bangboo upgrades by 4 points. This seemingly small advantage compounds throughout longer stages, allowing for earlier access to critical upgrades.
Players should balance between:
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Deploying new units in strategic locations
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Upgrading existing units to unlock Advanced Skills
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Saving resources for emergency deployments when enemies break through
Anti-Infiltration Rewards
Completing each stage of the Anti-Infiltration Assessment rewards players with Polychromes, a valuable currency in Zenless Zone Zero. These can be used for various purposes including gacha pulls for new Agents.
Additionally, certain stages may drop rare materials like the Heterogeneous Anti-coagulant Gel, which is used in crafting specialized items such as Cloud Crest during limited-time events like "As Time Passes: A Decade of Suibian Temple."
Community Strategies and Meta Evolution
Since the introduction of Anti-Infiltration in Zenless Zone Zero, the community has developed increasingly sophisticated approaches to tackling these challenges. The meta has evolved from simple unit placement to complex rotation strategies that account for enemy speed variations and threat levels.
One particularly effective strategy involves creating "kill zones" where multiple damage-dealing Bangboos focus fire on enemies slowed by control units. This approach maximizes the effectiveness of the anti hit system by ensuring enemies spend more time under attack.
Conclusion
Mastering Zenless Zone Zero's Anti-Infiltration Assessment requires understanding the unique mechanics of this tower defense mode, strategic Bangboo placement with anti hit considerations, and efficient resource management. As the game continues to evolve in 2025, staying updated with the latest strategies will be essential for players looking to maximize their rewards and overcome increasingly challenging stages.
Whether you're a new player just starting out or a veteran looking to optimize your approach, focusing on the core mechanics of strategic unit placement and understanding enemy patterns will serve you well in the dynamic world of Zenless Zone Zero's Anti-Infiltration challenges.