COSM-GAME NIKKE COIN RUSH SHOWDOWN Adds Bunny Guilty and Sin
GODDESS OF VICTORY: NIKKE launches the COIN RUSH SHOWDOWN update after maintenance on September 17, 2026, adding SSR Guilty: Mighty Bunny, the new fully voiced story event and a large set of bunny-themed content. SSR Sin: Swift Bunny follows with her Special Recruit on September 24, while COIN RUSH SHOWDOWN, THREE COMPANY RUMBLE, EXPO CHECK-IN and most launch-period content remain available through October 8 at 4:59:59 AM UTC+9. The update also brings a Limited Select Recruit for six returning winter Nikkes, new costumes, STAR ANIS in the Archives and several equipment and activity updates.
Game summary
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September 17 Update Overview
GODDESS OF VICTORY: NIKKE begins its next major content cycle on September 17 with the launch of COIN RUSH SHOWDOWN. Maintenance is scheduled from 11:00 AM to 6:00 PM UTC+9, and the update is mandatory on mobile and PC.
The first wave adds Guilty: Mighty Bunny, the COIN RUSH SHOWDOWN story event, THREE COMPANY RUMBLE, a Limited Select Recruit, new costumes, EXPO CHECK-IN and STAR ANIS in the Archives. Sin: Swift Bunny and several additional activities follow later in the update period.
| Content | Start | End |
|---|---|---|
| Guilty: Mighty Bunny Special Recruit | September 17 after maintenance | October 8 at 4:59:59 AM UTC+9 |
| COIN RUSH SHOWDOWN | September 17 after maintenance | October 8 at 4:59:59 AM UTC+9 |
| Limited Select Recruit | September 17 after maintenance | October 8 at 4:59:59 AM UTC+9 |
| Sin: Swift Bunny Special Recruit | September 24 at 5:00 AM UTC+9 | October 15 at 4:59:59 AM UTC+9 |
| COIN RUSH SHOWDOWN STORY II | September 24 at 5:00 AM UTC+9 | October 8 at 4:59:59 AM UTC+9 |
Guilty and Sin Get New SSR Bunny Versions
Guilty: Mighty Bunny is the first new SSR to arrive. She is a Water Code Attacker from Missilis Industry who uses the Rumble Stomper SR. Her kit focuses on increasing her own offensive capability before using her Burst Skill for a powerful single hit.
Sin: Swift Bunny follows on September 24. She is also a Water Code Attacker from Missilis Industry, equipped with the Blink Carrot SR. Her Burst Skill further increases her offensive capability and deals damage to multiple enemies.
| Nikke | Class | Code | Weapon | Recruit period |
|---|---|---|---|---|
| Guilty: Mighty Bunny | Attacker | Water | Rumble Stomper (SR) | September 17 after maintenance through October 8 |
| Sin: Swift Bunny | Attacker | Water | Blink Carrot (SR) | September 24 through October 15 |
Both Special Recruits have a 4 percent overall SSR acquisition rate and a 2 percent rate for the featured Nikke. Gems and Advanced Recruit Vouchers can be used, while Ordinary Recruit Vouchers cannot.
Recruiting also grants Gold Mileage Tickets. Two hundred Gold Mileage Tickets can be exchanged for the featured Nikke in the Mileage Shop, and unused Gold Mileage Tickets remain after the recruitment period ends.
Neither new bunny unit is permanently limited. The update notice states that Guilty: Mighty Bunny and Sin: Swift Bunny will later enter Ordinary Recruit, Social Point Recruit and Mold items after their respective Special Recruit periods, although some beginner and tutorial recruitment routes remain excluded.
COIN RUSH SHOWDOWN Brings a New Battle Royale Story
The fully voiced COIN RUSH SHOWDOWN event takes place during the inaugural Big Three Manufacturers' Expo. The Commander participates in a battle royale alongside the trouble-plagued Plan C Squad before the competition develops into a wider conspiracy.
The event runs from September 17 after maintenance until October 8 at 4:59:59 AM UTC+9. Players can explore its dedicated map and search for Gems, development materials and Lost Relics.
| Event section | Timing | Rewards or purpose |
|---|---|---|
| STORY I | September 17 through October 8 | Advanced Recruit Vouchers and development materials |
| STORY II | September 24 through October 8 | Advanced Recruit Vouchers and development materials |
| Challenge Stage | September 17 through October 8 | Higher-difficulty boss stages and development materials |
| Story Animation | Available through STORY II | New event animation accessed from a STORY II Normal stage |
THREE COMPANY RUMBLE and EXPO CHECK-IN Add More Rewards
THREE COMPANY RUMBLE is the update's new mini game. It is based on Entertainment Coin Catch, the second competition in COIN RUSH SHOWDOWN.
Bunny Girl Nikkes approach from the left and right while the player knocks them away, gathers coins and tries to remain active for as long as possible. The mini game runs for the same September 17 to October 8 period as the main story event.
EXPO CHECK-IN provides another reward track. Players who log in for any 14 days during the event period can collect Advanced Recruit Vouchers and development materials.
STAR ANIS also joins the Event Archives after September 17 maintenance. Memory Films obtained through COIN RUSH SHOWDOWN can be used to unlock archived story events.
Six Winter Nikkes Return in Limited Select Recruit
The update opens a Limited Select Recruit from September 17 after maintenance through October 8 at 4:59:59 AM UTC+9. Players choose one eligible limited Nikke as the target, and Nikkes that were not selected do not appear from this recruitment pool.
- Rupee: Winter Shopper
- Anne: Miracle Fairy
- Ludmilla: Winter Owner
- Mica: Snow Buddy
- Maiden: Ice Rose
- Guillotine: Winter Slayer
The same update period also allows these featured units and the new bunny Nikkes to participate temporarily in the Union Shooting Range during their respective recruitment windows.
New Bunny Costumes and Returning Outfits
Sugar receives the limited Killer Rabbit costume through Costume Gacha from September 17 through October 8. The Costume Gacha also contains Advanced Recruit Vouchers and equipment upgrade materials among its rewards.
Mana's Drunken Rabbit costume is tied to the premium LET'S DRINK PASS. Completing daily missions levels the pass, with the costume awarded at its maximum level.
Six earlier bunny-related costumes also return to the Cash Shop through October 8:
- Alice: Sweet Home
- Mary: Medical Rabbit
- Viper: Toxic Rabbit
- Folkwang: Moist Rabbit
- Exia: Hacker Rabbit
- Bay: Radiant Rabbit
Overload Equipment Gets Reroll Improvements
The September update also changes how Overload Equipment rerolls behave. When Change Effects or Reroll Values is used, unlocked lines can no longer reroll into the exact same option. Empty lines are the exception and can remain empty.
The equipment screen also gains a summary showing the total effects across a Commander's Overload Equipment. A warning appears before a maximum-level effect is rerolled away, reducing the chance of accidentally replacing a maximum roll.
The previous Commander Level 100 requirement for accessing Overload Equipment is also removed.
More Combat Activities Roll Out After September 17
The update continues beyond the first day with several scheduled combat activities. Simulation Room Overclock Season 10 begins September 22 and rewards Skill Manuals and Burst Manuals based on the highest Core Ratio cleared for the first time.
Solo Raid runs from September 24 at 12:00 PM through October 1 at 4:59:59 AM UTC+9. Coordinated Operation follows from September 25 at 12:00 PM through September 27 at 11:59:59 PM UTC+9.
FULL BURST DAY also returns for two weekends. The first period runs from September 26 at 5:00 AM through September 28 at 4:59:59 AM UTC+9, followed by another period from October 3 through October 5 at the same times. During FULL BURST DAY, Interception and Simulation Room provide an additional reward.
Note: COIN RUSH SHOWDOWN and Guilty: Mighty Bunny end on October 8 at 4:59:59 AM UTC+9, while Sin: Swift Bunny remains available until October 15 at 4:59:59 AM UTC+9.
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FAQ
16 questionsMaintenance is scheduled for September 17, 2026 from 11:00 AM to 6:00 PM UTC+9. COIN RUSH SHOWDOWN and the first wave of update content become available after maintenance ends.
Guilty: Mighty Bunny's Special Recruit runs from the end of September 17 maintenance through October 8 at 4:59:59 AM UTC+9.
Sin: Swift Bunny's Special Recruit begins September 24 at 5:00 AM UTC+9 and ends October 15 at 4:59:59 AM UTC+9.
Both are SSR Water Code Attackers from Missilis Industry. Guilty uses the Rumble Stomper SR, while Sin uses the Blink Carrot SR.
Each Special Recruit has a 4 percent total SSR rate and a 2 percent rate for its featured Nikke. Players can also exchange 200 Gold Mileage Tickets for the featured Nikke during the relevant recruitment period.
No. The update notice states that each will enter Ordinary Recruit, Social Point Recruit and Mold items in the version update after her Special Recruit ends, with some recruit modes excluded.
COIN RUSH SHOWDOWN is a fully voiced story event set during the first Big Three Manufacturers' Expo. The Commander enters a battle royale with the problem-filled Plan C Squad and becomes caught in a conspiracy involving Entertainment, Technology and Tactics.
The main event runs from the end of September 17 maintenance through October 8 at 4:59:59 AM UTC+9. STORY II opens later on September 24 at 5:00 AM UTC+9.
The event map can provide Gems, development materials and Lost Relics. STORY I and STORY II stages also provide Advanced Recruit Vouchers and development materials.
THREE COMPANY RUMBLE is the update's mini game. Players knock away Bunny Girl Nikkes approaching from both sides, collect coins and try to survive for as long as possible.
The selectable pool includes Rupee: Winter Shopper, Anne: Miracle Fairy, Ludmilla: Winter Owner, Mica: Snow Buddy, Maiden: Ice Rose and Guillotine: Winter Slayer.
Sugar receives Killer Rabbit through Costume Gacha, Mana receives Drunken Rabbit through the LET'S DRINK PASS, and Crust receives Treat Chef through the October Mission Pass.
Alice: Sweet Home, Mary: Medical Rabbit, Viper: Toxic Rabbit, Folkwang: Moist Rabbit, Exia: Hacker Rabbit and Bay: Radiant Rabbit return to the Cash Shop from September 17 through October 8.
EXPO CHECK-IN is a 14-day login event running during COIN RUSH SHOWDOWN. Logging in for 14 days provides rewards including Advanced Recruit Vouchers and development materials.
STAR ANIS becomes available in the Archives after September 17 maintenance. Players can obtain Memory Films through COIN RUSH SHOWDOWN to unlock story events in the Archives.
The update prevents unlocked Overload lines from rerolling into the exact same effect and value, except for empty lines. It also adds a total equipment effect summary, warns before rerolling a maximum-level effect and removes the Commander Level 100 requirement for accessing Overload Equipment.