Application Data Update and Server Maintenance Notice
MOBILE SUIT GUNDAM BATTLE OPERATION 2 · published
Hello, Pilots!
This is the Steam® version "Mobile Suit Gundam Battle Operation 2" team.
Server maintenance will be performed on the following schedule.
◇Date & Time
09/02/2026 22:00 – 09/03/2026 01:00
09/03/2026 07:00 – 09/03/2026 10:00
◇Maintenance Details
・Application Data Update
・Supply Drop Lineup Update
※Please note that you will not be able to log in to the game during the maintenance.
※The end time may vary depending on the maintenance status. Please understand this in advance.
※Entering the maintenance during matching may cause unexpected errors.
Please log out of the game before maintenance.
We apologize for any inconvenience this may cause and appreciate your understanding and cooperation.
09/03/2026 / 09/03/2026 Updated content is listed below.
■GBO2 Autumn Pre-Festival
GBO2 Autumn Pre-Festival has been underway since 08/27/2026 / 08/27/2026.
■Period
08/27/2026 01:00 – 09/23/2026 21:59
08/27/2026 10:00 – 09/24/2026 06:59
※Detailed information is listed below.
https://store.steampowered.com/news/app/1367080/view/681885122980480406
■Unit Adjustment
◎In response to the new units implementation and the changes on battlefield,
we have applied adjustments to Wing Gundam Zero.
【Wing Gundam Zero】
■ Wing Gundam Zero Guaranteed Boosted Supply Drop
Starting from 09/03/2026 / 09/03/2026,
Wing Gundam Zero Guaranteed Boosted Supply Drop will begin.
■Period
09/03/2026 01:00 – 09/09/2026 21:30
09/03/2026 10:00 – 09/10/2026 06:30
■Content
A Supply Drop, in which 10-consecutive Supply Drops can be requested up to STEP10.
The STEP will progress by 1 each time you perform a request,
as STEP1 → STEP2 → STEP3 → STEP4 → STEP5 → STEP6 → STEP7 → STEP8 → STEP9 → STEP10.
After STEP10 is requested, Boosted Supply Drop will be over.
・STEP1 (15 Tokens): Tokens 50% OFF!
・STEP2 (30 Tokens): 50 ★★★★ Mechanic tickets for bonus!
・STEP3 (30 Tokens): 50 ★★★★ Modification kits for bonus!
・STEP4 (30 Tokens): ★★★★ materials drop rate x2!
・STEP5 (30 Tokens): ★★★★ materials drop rate x3!
+ 100 ★★★★ Mechanic tickets for bonus!
・STEP6 (30 Tokens): ★★★★ materials drop rate x3!
+ 100 ★★★★ Modification kits for bonus!
・STEP7 (30 Tokens): “Wing Gundam Zero LV1” x1 guaranteed!
+ Custom part "Emergency Recovery Device LV1" for bonus!
・STEP8 (15 Tokens): Tokens 50% OFF! + 300 ★★★★ Mechanic tickets for bonus!
・STEP9 (30 Tokens): 300 ★★★★ Modification kits for bonus!
・STEP10 (30 Tokens): “Wing Gundam Zero LV2” x1 guaranteed!
■Custom part
Emergency Recovery Device LV1
Increases unit HP by 2500.
Repair tool HP recovery and HP recovery from bases increase 20%.
Some debuff status recovery speed increase 50%.
※Same supplies will be drawn as the ongoing Supply Drops.
For details, please check the .
※Please also make sure to have a check to the event schedule so that you will not miss anything.
■Special Boosted Supply Drop
Starting from 09/03/2026 / 09/03/2026,
a Boosted Supply Drop which guarantees you "Emergency Recovery Device LV1" will begin.
■Period
09/03/2026 01:00 – 09/09/2026 21:30
09/03/2026 10:00 – 09/10/2026 06:30
■Content
A Supply Drop, in which 10-consecutive Supply Drops can be requested up to STEP4.
The STEP will progress by 1 each time you perform a request,
as STEP1 → STEP2 → STEP3 → STEP4.
Once STEP 4 is completed, the Boosted Supply Drop will end.
・STEP1 (15 Tokens): Tokens 50% OFF!
・STEP2 (30 Tokens): ★★ or higher rarity MS x2 guaranteed!
+ 200 ★★ Mechanic tickets for bonus!
・STEP3 (30 Tokens): ★★★ or higher rarity MS x2 guaranteed!
+ 250 ★★ Mechanic tickets for bonus!
・STEP4 (30 Tokens): ★★★★ rarity MS x1 guaranteed!
+ Custom part "Emergency Recovery Device LV1" for bonus!
■Custom part
Emergency Recovery Device LV1
Increases unit HP by 2500.
Repair tool HP recovery and HP recovery from bases increase 20%.
Some debuff status recovery speed increase 50%.
※Same supplies will be drawn as the ongoing Supply Drops.
For details, please check the .
※Please also make sure to have a check to the event schedule so that you will not miss anything.
■FA Engage Gundam LV2 Guaranteed Boosted Supply Drop
Starting from 09/03/2026 / 09/03/2026,
FA Engage Gundam LV2 Guaranteed Boosted Supply Drop will begin.
■Period
09/03/2026 01:00 – 09/09/2026 21:30
09/03/2026 10:00 – 09/10/2026 06:30
■Content
A Supply Drop, in which 10-consecutive Supply Drops can be requested up to STEP5.
The STEP will progress by 1 each time you perform a request,
as STEP1 → STEP2 → STEP3 → STEP4 → STEP5.
Once STEP 5 is completed, the STEP UP Supply Drop will end.
・STEP1 (15 Tokens): Tokens 50% OFF!
・STEP2 (30 Tokens): ★★ or higher rarity materials drop rate x1.5!
・STEP3 (30 Tokens): ★★★ or higher rarity MS x1 guaranteed!
・STEP4 (15 Tokens): Tokens 50% OFF!
・STEP5 (30 Tokens): FA Engage Gundam LV2 x1 is guaranteed!
※Same supplies will be drawn as the ongoing Supply Drops.
For details, please check the .
※Please also make sure to have a check to the event schedule so that you will not miss anything.
■ Notice of Supply Drop Lineup “Wing Gundam Zero”
Supply Drop Lineup has been updated.
■Period
09/03/2026 01:00 – 09/09/2026 21:30
09/03/2026 10:00 – 09/10/2026 06:30
■Unit
・★★★★ Wing Gundam Zero LV1-2 (General unit, ground/space uses, cost: 700+)
■Mobile Suit Features
・A unit developed based on the first combat MS of the After Colony (A.C.) era,
during humanity's migration to space colonies.
・OZ was originally a thriving construction company thanks to the colony development boom,
but would later venture into the defense industry.
It completed an MS that placed an intense amount of stress on the pilot during acceleration,
but never became a standard-issue unit. Instead, the company moved on
to develop mass-production units by cutting its excessive performance mechanisms.
・To counter this, engineers at OZ secretly started researching a method
of forcibly enhancing a pilot's combat capabilities
by directly transmitting actions necessary for victory to the brain,
resulting in the completion of the ZERO System to boost pilot performance.
Along with this, they would upgrade materials, equipment, and structure.
For armor, they would use a new material known as Gundanium alloy,
offering remarkable bulletproofing and viscosity,
and enabling the unit to transform into a high-speed Neo-Bird form.
They would also successfully develop the Twin Buster Rifle,
capable of annihilating an entire colony with a single shot.
・However, fearing this technology would be exploited by OZ,
the engineers abandoned the unit and fled the company.
Once rebuilt, this MS would make an appearance in A.C. 195, which was a time of great turmoil.
・Can be deployed both on the Ground and in Space.
https://bo2.ggame.jp/images/info/2026/08/33bc8d9f098a49942b9323eeeae337c6.mp4
※This video may not be representative of the actual product.
※Please also make sure to have a check to the event schedule so that you will not miss anything.
Skill “ZERO System LV1”
・When the ZERO System is active, temporarily trigger the following effects.
・Unit’s ATK power and mobility are increased
・Unit’s max melee and ranged strengths are increased
・The amount of thruster consumed at the start of and during High Speed Movement is reduced
・Main ranged weapon can be used during High Speed Movement
・Target weapon’s performance is altered
・Damage from enemy attacks and stagger caused by cumulative damage are reduced
・The Flap Booster LV2 skill is provided
・Time of locked-on by psycommu weapon is extended
When the effect ends, the thrusters become overheated.
Sub-weapon “Split TB Rifle ”
・Can only be used while the ZERO System skill is in effect.
Deals damage while discharging, penetrating MS on hit,
and can also be used in midair, but must stop to fire.
Requires focus, and can move while focused
Note that modifier is not applied while in a crouched position.
■Exclusive pilot item as a Bonus for the 10-consecutive Supply Drops!
Beginning from 09/03/2026 01:00 / 09/03/2026 10:00,
1 exclusive pilot item as a bonus can be obtained from normal 10-consecutive drops.
■Period
09/03/2026 01:00 – 09/09/2026 21:30
09/03/2026 10:00 – 09/10/2026 06:30
■Supply Drop with Bonus Items
Normal 10-consecutive Supply Drops
■Bonus Item Content
■Mark
◎ZERO System
※Requesting a 10-consecutive Supply Drop during the campaign will trigger an additional drop
that awards a bonus item.
※Single Supply Drops are not eligible for this offer.
The bonus item will not be awarded even if you request Single Supply Drops 10 times in a row.
※For more information regarding the updated lineup, please refer to the .
■Removed Materials from the Supply Drop
Some materials are removed from the supply drop lineup.
※For more information regarding the updated lineup, please refer to the .
■Other materials
■Unit
・★★★ FA Engage Gundam LV2 (Support unit, ground/space uses, cost: 700)
※★★★ or higher rarity MS are eligible for the Monthly MS Bonus.
■Notice of
Some materials in this Supply Drop will have a boost to their supply drop rates for a limited time.
■Period
09/03/2026 01:00 – 09/09/2026 21:30
09/03/2026 10:00 – 09/10/2026 06:30
■Featured material that will benefit from the Big Boost to its Supply Rate
・★★★★ Wing Gundam Zero LV1-2 (General unit, ground/space uses, cost: 700+)
■Supply Drops that will benefit from Big Boost to Supply Rates
・Normal Supply Drop
※After the end of the campaign, all supply drop rates will be the same as other materials.
■Notice of “Limited Supply Drop!! FA Engage Gundam ”
Starting from 09/03/2026 01:00 / 09/03/2026 10:00,
a Limited Supply Drop with boosted drop rates for a certain MS will begin.
■Period
09/03/2026 01:00 – 09/09/2026 21:30
09/03/2026 10:00 – 09/10/2026 06:30
■Contents
During the period, you can request “Limited Supply Drop (Once / 10 Times)” at the Supply Counter.
In this Limited Supply Drop, FA Engage Gundam ’s drop rate will be increased.
■Featured material with a Big Boost to its supply drop rate
This Limited Supply Drop offers increased drop rates for the featured unit and its weapons.
◎Supply drop rate up #1 (Item Amount 1)
・★★★ FA Engage Gundam LV1 (Support unit, ground/space uses, cost: 650)
◎Supply drop rate up #2 (Item Amount 1)
・★★★ FA Engage Gundam LV2 (Support unit, ground/space uses, cost: 700)
◎Supply drop rate up #3 (Item Amount 2)
・★★ FEGAP Large Beam Cannon LV2
・★ FEGAP Beam Saber LV2
■Supply Drops that are affected by the drop rate increase
・Limited Supply Drop
※This Limited Supply Drop features the same lineup as the normal Supply Drop,
but with different drop rates for certain materials.
Below is an example when Unit LV1, Unit LV2, and the main weapons are each featured:
・Unit LV1: 3% drop rate
・Unit LV2: 3% drop rate
・Main Weapons: 3% drop rate
The Supply Drop rate increase is made by the reducing the drop rate of “★” rarity items.
※Regarding the detailed lineup of the Limited Supply Drop, please check during the event.
※The amount of tokens required to request a Limited Supply Drop is the same as normal Supply Drop.
(Once – 3 tokens / 10 Times – 30 tokens)
※Please also make sure to check the event schedule so that you will not miss anything.
■Overview of “GBO DAYS”
Several events will be held from every first Thursday through Sunday as our campaign "GBO Days"!
■What is GBO Days?
GBO Days is a special monthly campaign that will start at the first Thursday of every month
at 17:00 until the next Monday 04:59 .
Pilots who always play GBO2 will receive a lot of benefits, furthermore,
new and returning pilots will be even benefited from some of the content during the campaign!
■GBO Days September Schedule
09/03/2026 01:00 – 09/06/2026 12:59
09/03/2026 10:00 – 09/06/2026 21:59
■Campaign Details
During the period,
①Free "Guaranteed Mobile Suit Supply Drops" that can be requested once a day! (Up to 4 Units!)
②"Special Supply Drop" with 2 guaranteed ★★★ or above rarity MS can be requested once!
(10 Times/30 Tokens)
③Basic rewards (EXP, DP, CP) after battle will be doubled!
If you are a new or returning pilot, it will be increased to 5 times!
④New & returning pilots always have a 100% container discovery rate of the recon team!
Also, veteran pilots of GBO2 who sortie with, new & returning pilots,
their observation unit's container discovery rate will be increased by 30%!
※New pilots must start up GBO2 for the first time and click "GAME START" on the title screen
within 14 days.
※Returning pilots are those who have not logged in for at least 45 days since the last logged out of GBO2.
※Please note that basic rewards will not be increased
if pilot has started a game session after the campaign period.
※The number of containers that can be found will be only two per day.
※If you have been awarded with Premium War Merit badge,
the number of containers you can find per day will be increased.
※Date will be updated daily at 5:00 AM .
※If Penalty status is or above, you will not able to get any container.
■New Materials for exchange are added to Recycle Counter
⇒ Information about newly added materials
■Units
・★★★ Messer Type-F02 LV1 added
・★★★/★★ Char's Gelgoog LV2-4 added
※The materials mentioned above will be available at the Recycle Counter,
from 09/03/2026 – 09/04/2026.
■Main weapons
・★★ FEGAP Large Beam Cannon LV2 added
・★ FEGAP Beam Saber LV2 added
※The materials mentioned above will be available at the Recycle Counter,
from 09/03/2026 – 09/10/2026.
■New Materials for exchange are added to DP exchange counter
⇒ Information about newly added materials
■Units
・★★★ Gundam G-First LV1 added
・★★ Mass Production Type Nu Gundam LV2 added
■Rating Match/Quick Match Game Modes are updated.
※There may be differences about the game mode with the information above,
which were introduced during the previous update regarding .
■Situation Battle is now updated
⇒ The topic of the week is “Retribution”.
※For more details about this week’s Situation Battle, please click here.
https://store.steampowered.com/news/app/1367080/view/667249691758428193
■Schedule for this week's weekend-only battle
◎Weekend-only battle schedule
09/03/2026 12:00 – 09/06/2026 11:59
09/03/2026 21:00 – 09/06/2026 20:59
◎Special Rules
・"Mix-up", "Simple Battle", "Shuffle Target",
"Brawl Match" and "Duel Match" will be held in every 2 hours.
・Situation Battle “Retribution” will be held.
■Next Clan Match Schedule
Please refer, here for the next Clan Match schedule and reward collection period.
https://store.steampowered.com/news/app/1367080/view/3696937262747690435
The latest information will be posted on STEAM News and our X (Twitter) in the future.
https://x.com/pc_gbo2
We look forward to your continued support of "Mobile Suit Gundam Battle Operation 2".