Zenless Zone Zero throws you into the heart of a post-apocalyptic city where Agents fight for survival and glory. As you progress, you’ll unlock a diverse cast of these Agents, each with unique combat styles and upgrade paths.

But what if you could push their abilities further, unlocking their true potential? That’s where the legendary Hamster Cage Pass comes in.

Belle and Wise, MCs of Zenless Zone Zero in key visual used in ONE Esports featured image for article "Exclusive: Zenless Zone Zero is not just some random words — here’s what it really means"
Credit: ONE Esports, HoYoverse
Exclusive: Zenless Zone Zero is not just some random words — here’s what it really means

This guide delves into everything you need to know about this item. We’ll explore what it is, how it empowers your Agents, and most importantly, how to get your hands on one.

Whether you’re a seasoned Agent slayer or just starting your journey in Zenless Zone Zero, this comprehensive guide equips you with the knowledge to maximize your character’s strength and conquer the toughest challenges the Hollows have to offer.

What is Hamster Cage Pass in Zenless Zone Zero?

Hamster Cage Pass is a rare (S-Rank) item in ZZZ. It is a material used when raising skill levels.

This item allows you to level up your Agent’s skills, including Basic Attack, Dodge, Assist, Special Attack, and Chain Attack, to level 12. This essentially maxes out the potential of that skill, making your Agent stronger.

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Screenshot by Amanda Tan/ONE Esports, credit: HoYoverse
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In the game’s lore, the ring represents a pass granting access to a special training facility called Hamster Cage.

Hamster Cage Pass official description in ZZZ

Hamster Cage Pass item in Zenless Zone Zero
Screenshot by Kristine Tuting/ONE Esports

A delicate ring containing a disposable access chip allows its wearer to access the Hamster Cage, a top-notch simulation training center. The Hamster Cage provides the most extensive and professional combat training, on par with the best-equipped training area in the Hollow Investigative Association.

How to use Hamster Cage Pass in Zenless Zone Zero

Hamster Cage Pass allows you to push your Agents’ combat skills beyond the usual level cap, unlocking their full potential. Here’s a breakdown of how to use it.

Requirements before using Hamster Cage Pass

  • Agent level– Your Agent needs to be at their maximum level, which is level 60.
  • Skill level – The specific skill you want to upgrade must already be level 11. This essentially unlocks the final upgrade tier for that skill.
  • Materials and Dennies—This item also requires specific upgrade materials and a certain amount of Dennies. Make sure you have these prepared beforehand.

Using Hamster Cage Pass

  1. Navigate to the section where you can enhance your Agent’s skills within the character menu.
  2. Choose the specific skill you want to upgrade. Remember, this skill needs to be already at level 11.
  3. Once you’ve selected the skill, confirm your choice to use the Hamster Cage Pass.
In process of taking a photo in Zenless Zone Zero at Random Play shop
Screenshot by Amanda Tan/ONE Esports, credit: HoYoverse
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It is important to note that fully maxing out an Agent’s skills requires a total of five Hamster Cage Passes. Plan your upgrades accordingly.

Without using this item, it’s impossible to unlock the final skill level for any character. These upgrades offer significant boosts to your Agent’s skills, so they’re worth aiming for.

Where to get Hamster Cage Pass in ZZZ

This item can be acquired through two main methods.

Limited-time events (free)

Keep your eyes peeled for special events in ZZZ. These events often offer Hamster Cage Passes as free rewards for participating and completing challenges.

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Credit: ONE Esports, HoYoverse
All working ZZZ codes and how to redeem them

The specific details and requirements vary depending on the event, so check the in-game announcements and event descriptions for opportunities to get a free copy of this resource material.

New Eridu City Fund (free and paid)

The New Eridu City Fund, also known as the game’s battle pass, provides another way to get your hands on this S-Rank item. The good news is that both the Basic Plan (free) and the Growth Plan (paid and premium version) of the battle pass include one Hamster Cage Pass as a reward.

Zenless Zone Zero battle pass, New Eridu City Fund
Screenshot by Kristine Tuting/ONE Esports

You can certainly experience everything ZZZ has to offer without this resource material. But for dedicated players who want to fully optimize their Agents and achieve that perfect, maxed-out character, collecting these rare items becomes the ultimate endgame pursuit.

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