Free Rewards in ZZZ 2.4 – How to Get Birkblick, Free Bangboo & Polychrome (Complete Guide)

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Everyone’s rolling for Dialyn and Banyue, but the real winners of the 2.4 update are the Proxies quietly stacking hundreds of Polychromes, a free A-Rank Bangboo, 10 free pulls, and a free W-Engine—all without spending a single Denny.

Zenless Zone Zero Version 2.4: On the Precipice of the Abyss is one of the most rewarding patches so far, especially for F2P players. Premium rewards are tucked behind special events, login bonuses, exploration activities, and easy-to-miss codes.

Most players will grab a few of these rewards by accident…
but only a strategic player will secure every free item before December 29.

This guide is your complete treasure map to every free Bangboo, W-Engine, character, Polychrome source, and banner pull available in ZZZ 2.4.

Complete ZZZ 2.4 Free Rewards Summary

Reward CategoryWhat You GetHow to Get ItTime Limit / Notes
Free BangbooA-Rank Bild N. BoolokComplete En-Nah Chess Saga commissionsNov 26 – Dec 29
Free Pulls10 Encrypted Master TapesDaily login during All-New ProgramNov 26 – Dec 29
Free Polychrome330+ totalEvents + codesVaries
Free W-EngineA-Rank Defense W-EngineComplete Panda Stages in Neo Golden MechaNov 26 – Dec 29
Free CharacterKomano Manato (A-Rank)Added to Standard BannerPermanent
Double Rewards2× Drive Discs, 2× MaterialsLimited bounty periodsDec 11–16 & Dec 24–29

Immediate Priority: Redeem These 2.4 Codes NOW

These FREE codes require no gameplay and give instant Polychrome + materials.
Redeem them before they expire.

Free Rewards in ZZZ 2.4 – How to Get Birkblick (Complete Guide)

Active Codes (As of December 2024)

  • DIALYN1125 – 60 Polychrome + materials

  • ZZZ24KRAMPUS – 60 Polychrome, 6,666 Dennies

  • ZENLESSGIFT – 50 Polychrome + W-Engine supplies

  • ZZZ23SWEETILY – 60 Polychrome, 6,666 Dennies

How to Redeem

  • Visit HoYoverse’s Official Code Page, OR

  • In-game → More → Redemption Code

Pro Tip:
Set a weekly reminder. New codes often drop during livestreams, announcements, or milestones.

Event Rewards Deep Dive: Step-by-Step Guide

1. En-Nah Chess Saga – Get Your Free A-Rank Bangboo

Primary Reward: A-Rank Bild N. Boolok
Event Period: Nov 26 – Dec 29
Requirements: Inter-Knot Lv 15 + complete Mole in the Hole (I)

This is your #1 priority event.

Bild N. Boolok is not just a collectible—it's a top-tier support Bangboo that boosts damage in almost every team.

How the Event Works

  • Auto-battler Bangboo combat

  • Bond Synergy buffs when pairing matching Bangboos

  • Progress → Victory Points → Reward tiers

Best Strategy

  • Unlock agent story requirements ASAP

  • Rush the commission that rewards Bild N. Boolok

  • Use Recommended Lineup for harder stages

  • Finish the entire event to earn Polychrome, titles, and a Hamster Cage Pass

2. All-New Program Login – 10 Free Master Tapes

Reward: 10 Encrypted Master Tapes
Period: Nov 26 – Dec 29
Requirement: Log in for 7 days (not consecutive)

Tips

  • Even if busy, log in daily to secure your pulls

  • Consider saving for Banyue’s Phase 2 banner

  • Combine these with Polychrome for multi-pull sessions

3. Neo Golden Mecha – Free A-Rank Defense W-Engine

Primary Reward: A-Rank Defense W-Engine
Event Period: Nov 26 – Dec 29

This W-Engine is perfect for Defense agents like Pan Yinhu.

Event Structure

  • Main story stages (tutorials + rewards)

  • Panda Stages → claim your free W-Engine

  • Challenge modes → bonus Polychrome

Strategy

  • Clear Panda Stages first

  • Learn the mecha mechanics—they’re useful in future events

  • Don’t skip the story; it contains extra rewards

4. Additional Event Rewards

Lightstream Notes (Dec 3–29)

Exploration-driven event with Polychrome + Boopons.

100% Miss Bunny (Dec 17–29)

Combat assessments with Polychrome + upgrade mats.

Simulated Sequence Showdown (Dec 8–29)

Challenging combat trial featuring Polychrome + skill materials.

Double Reward Periods: Don’t Miss Them

Period            Reward Type            Best Use
Dec 11–16Double Drive DiscsFarm endgame builds for Dialyn/Banyue
Dec 24–29Double MaterialsCharacter leveling & skill upgrades

Strategy:
Save battery energy and spam these windows for maximum efficiency.

Permanent Additions & Hidden Rewards

New Standard Banner Character

Komano Manato (A-Rank) is now permanently added to Standard Banners.

Story Completion Bonuses

  • Achievement: “Echo of the Stone in the Abyss”

  • New zone: Yum Cha Sin Banquet Hall (exploration rewards)

Routine Daily Rewards

Don’t skip:

  • Daily commissions

  • Weekly challenges

  • Hollow exploration

  • Suibian Temple passive rewards

Priority Checklist (Don’t Miss Anything!)

Week 1

  • Redeem all codes

  • Start En-Nah Chess Saga

  • Begin login event

  • Begin Neo Golden Mecha

Week 2–3

  • Unlock Bild N. Boolok

  • Clear Panda Stages

  • Do Lightstream Notes

  • Farm Double Drive Discs (Dec 11–16)

Week 4

  • Finish Miss Bunny

  • Finish Simulated Showdown

  • Farm Double Materials (Dec 24–29)

Common Mistakes to Avoid

  • Waiting too long to start events (some require progress)

  • Ignoring Inter-Knot requirements

  • Missing code expiration windows

  • Skipping double reward farming

  • Not logging in for the free 10 pulls

Total Free Resource Value (Complete Breakdown)

By completing everything in ZZZ 2.4, you earn:

  • 1 Free A-Rank Bangboo (Bild N. Boolok)

  • 1 Free A-Rank W-Engine

  • 10 Free Master Tapes (10 pulls)

  • 330+ Polychrome (≈2 extra pulls)

  • Upgrade materials, Dennies, skill mats

Total Value: 15–18 pulls + premium gear.

Banner Planning: Smart Pull Strategy

If pulling for Dialyn (Phase 1: Nov 26–Dec 17)

Use early Polychrome + Master Tapes.

If saving for Banyue (Phase 2: Dec 17–29)

Hold all pulls until his banner drops.

If saving for the future

Stack everything for 2.5 or 3.0—these rewards won’t expire from your inventory.        

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