Gate Keeper Third Operation Info

Gate keeper gate keeping booty


Previously seen in Chainsaw Man collab, Gatekeeper is responsible for bringing characters from NieR universe to NIKKE. Gatekeeper will appear 3 times during the Collab Event with different Elemental Weaknesses, dates are as follows: -First operation: From 12:00:00 August 31, 2023 to 23:59:59, September 3, 2023 (UTC+9)
-Second operation: From 12:00:00 September 7, 2023 to 23:59:59, September 10, 2023 (UTC+9)
-Third operation: From 12:00:00 September 14, 2023 to 23:59:59, September 17, 2023 (UTC+9) Simply navigate to “Coordinated Operation” on the UI or head here on overworld map to start this boss fight


Once player reaches Stage 9 (3.6M damage), the boss will launch a “wall QTE” attack which must be intercepted to prevent a wipe. After clearing the QTE, boss will launch a freeze attack dealing a small amount of damage and decreases Ammo Capacity by 40%. Up next, boss will launch a stun attack which can be interrupted by destroying 3 QTE circles protected by Elemental shield (weak to Electric). The elemental shield effect lasts for ~10s after disappearing. During which the boss will attempt to respawn any broken Mini Wormholes then fire lasers from all 4 towards a single unit. This completes an attack cycle which starts with the freeze attack, boss will now repeat this cycle until timeout.


This “Wall QTE” attack consists of red circles which needs to be broken and white circles which are to be avoided. The QTE has a set pattern:

  • White circles form a line dividing the QTE pattern into halves.
  • Red circles spawn in groups of 3, there are 3 groups on both halves

This QTE pattern can be cleared quickly with Shotguns by aiming at the center of these groups.


The Elemental Shield will be active for most of the fight, other units will have ~10s window during each cycle to deal damage. Therefore Elemental dominant units will be the main source of damage. Other Elements will struggle to deal any significant damage


It is HIGHLY recommended to have the “auto-aim” option on from settings as it will greatly help units to core hit the boss. Greatly improving DPS. The core located around center body mass.

Team Comps (Gatekeeper Week 3)

Electric units with elemental rolls (Overloaded equipment) is highly recommended. Sustain is optional if your team has high level OL gear but you’ll be at the mercy of targeting RNG.

Recommended Units

Burst 3 units

Anis: Sparkling Summer,scarlet,guillotine

Burst 2 units


Burst 1 units


Best team so far

Liter Blanc Blanc S.Anis S.Anis This team strikes a balance between sustain and DPS, running 2 Blanc’s will satisfy the condition for her 20s CD without using Noir to avoid anti-synergy with S.Anis as she increases Ammo Capacity. Liter works because the freeze attack reduces Ammo Capacity by 40%, which CONVENIENTLY undo’s her buff to S.Anis. However this team lacks burst gen capability. Note: This team requires S.Anis Burst Level 9

Liter,blanc,Blanc,Anis: Sparkling Summer,Anis: Sparkling Summer

Valkkin has been an avid gamer ever since birth. Writing nerdy and light-hearted guides while despising math. Support his work on Ko-fi!

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