We sincerely apologize for any inconvenience caused.
During this time, we plan to update the current rankings once a day around 1:00 AM (PST) on the following page:
→Challenge Battle：Leaderboard We apologize for the inconvenience and appreciate your understanding and cooperation.
Notice of communication failure (Update: March 23)
Thank you for playing Godzilla Battle Line.
Regarding the error occurring on the results screen, we believe the issue is being caused by the ranking calculation process.
To address this, we will be performing maintenance tomorrow (March 23 or 24 PST) to reduce the server load. We will provide further details regarding the specific schedule shortly.
We deeply apologize for the prolonged inconvenience this issue has caused. We appreciate your continued patience as we work toward a resolution.
Notice of communication failure
We are aware of an error appearing on the result screen after Challenge Battles. Our team is currently investigating the cause.
If an error appears after a Challenge Battle, please wait a moment before playing the game again.
Note: Your match results are being saved normally.
We apologize for the inconvenience and ask for your patience as we work to fix this issue.
We sincerely apologize for any inconvenience this may cause.
We’re launching the Ancient Ruins Challenge Battle event!
■ New Content
| – Added Special Rules Special Rules that greatly change the flow of battle have been added. With effects like “Cost recovery speed increased” shifting the fight into high gear, “Effect Battle Pieces activated” changing the tide of combat, and even “Stats increased” for certain units, battles will take place in completely new and unusual circumstances. Get a thrill from these unfamiliar and unpredictable battles! – Added Leaderboards Various Leaderboards have been added, ranking players by number of victories, destroyed units, and more. – Added New Legendary Eggs The Legendary Engraved Egg, Legendary Amber Egg, and Legendary Azure Egg have been introduced in addition to the Legendary Rainbow Egg. |
■ Period:
Mer.19, 2026(Thu.), following the completion of maintenance
–
Mer.30, 2026(Mon.) 20:59 (PST)
*The Challenge Battle unlocks at Arena Rank 21.
■ Overview
There are two types of battle modes: ticketed battles (Challenge Battles) and unticketed battles (Drills).
Spend tickets and win Challenge Battles for a chance to transform your egg.
Your egg will also grow depending on the battle mode you choose and your battle results.
Hatch your egg to earn rewards based on its type and growth!
■ Leaderboards
In Ancient Ruins Challenge Battles, you will compete with players from around the world to rack up victories, enemies destroyed, or other criteria set for each event.
You can earn titles by achieving certain ranks.
This event will use the following criteria:
【Leaderboard Criteria】
-Number of Victories
Notice Regarding Currently Identified Issues
-The ranking rewards tab on the Challenge Battle Leaderboard page may display an incorrect number (0 or 66) under “Current Rank”.
-The Challenge Battle Leaderboard are updated every hour on the hour, but it may take some time for them to appear.
-To update your Challenge Battle Leaderboard, which is displayed at the bottom of the Challenge Battle Leaderboard page, you will need to log in again.
■ Event Conditions
In the Ancient Ruins Challenge Battle, you’ll battle according to two sets of conditions: battle conditions, which determine the battle situation; and deck requirements, which place restrictions on your deck.
The following conditions will apply to this event:
【Battle Conditions】
Fixed-Level Match (Level 20)
*In a fixed-level match, all battle pieces appear at a set level, regardless of the actual level of your battle pieces.
【Deck Requirements】
Your deck must meet all of the following requirements:3 or more units with an energy cost of 7 or more (including the Leader)
-Total cost of 40 or more(Excluding Leader)
-Certain units prohibited
*Battle pieces that evolve when they are the leader will be counted at their pre-evolution cost.
*Cannot be used Battle Pieces list
| 4★Ultraman | 3★Neronga |
| 3★Mefilas | 4★Zetton |
| 4★EVA-01 | 4★EVA-00 |
| 4★EVA-02 | 4★EVA-08 |
| 3★4th Angel | 3★10th Angel |
| 4★MASKED RIDER | 3★KUMO AUGMENT |
| 4★BLADE LIGER | 4★Godzilla (2016) (Second Form) |
| 4★Godzilla (2004) Tokyo Final Battle ver. | 4★Godzilla Ultima Scarlet Dust ver. |
| 4★Gigan Rex |
【Special Rules】
〇 Cost Recovery Speed
– x1.5
〇 Effect Battle Pieces Activated
– Missile Strike（Lv.40）
〇 Stats Increased
– None
【Battle Map】
London Area – Night
■ How to Play
The Ancient Ruins Challenge Battle is available to players at Arena Rank 21 or higher.
| – Select Event from the footer menu and tap the Challenge Battle button to take on! You will need Challenge tickets to play. – Arrange your deck to meet the requirements! Only battle pieces that meet the specified requirements can fight in a Challenge Battle. – Win battles! Winning battles is the key to acquiring and transforming eggs. – Hatch your egg! Tap an egg at Level 1 or higher to hatch it. – Transform your egg! Transform your egg into a rarer egg. |
■ Egg Types
Eggs are assigned a rarity; the higher the rarity, the better the reward when it’s hatched.
The lineup of rewards and probability of obtaining them also differ depending on the type of egg.
For example, some eggs offer a better chance of acquiring an aerial battle piece, while others reward you with G-tokens. Try hatching different types of eggs and see what rewards you get!
■ Egg Transform Tickets
So long as you have Egg Transform Tickets, you can trigger up to three Transformation Chances per egg at any given time.
Using one on a Legendary Rainbow Egg may transform it into a Legendary Engraved Egg, a Legendary Amber Egg, or a Legendary Azure Egg.
Each of these legendary eggs can then be transformed again into a different legendary egg.
Use this opportunity to aim for rarer eggs!
*Transformation Chances may trigger upon winning a Challenge Battle even if you have no remaining Ticket Transformations.
*Your remaining Ticket Transformations will be fully restored when your egg hatches.
*Egg Transform Tickets can be earned from login bonuses and special missions, or purchased in the Shop.
*Tickets can be carried over to subsequent Challenge Battles.
■ Special Challenge Battle Packs Now on Sale!
The Challenge Battle Strategy! Double 4★ Pack and Challenge Battle Support Pack have been added to the Shop for a limited time.
This essential pack includes two battle pieces of one 4★ units hat meet the deck requirements for the ongoing Challenge Battle, plus 10,000 G-tokens!
A total of nine Battle Pieces are available, including the new Godzilla and Gamera, Iris, and Iris Flying Form, in addition to a number of high-cost Battle Pieces!
Take on more Challenge Battles with 3 Challenge tickets, 1 Egg Transform tickets, a Rare Expedition Map, and 10,000 G-tokens!
*Available for purchase at Arena Rank 21 or higher.
■ Login Bonus
 |
 |
Get your claws on rewards including a 4★ Kiryu Kai Heavy Arms Type and Highly Mysterious Expedition Maps just by logging in during the event!
Login Bonus Period: Until Mar.30, 2026(Mon.) 20:59 (PST)
*Login bonuses can be earned for up to 12 days during the period.
■ Challenge Battle Missions
Check the Special tab on the Missions screen for limited-time Challenge Battle missions.
Clear the missions to earn a variety of rewards, including Challenge tickets for Challenge Battles!
We are planning to hold various events in the future.
We hope you will continue enjoying Godzilla Battle Line.
*Please note that the period and contents are subject to change.