Table of Contents
Guide on How to Defeat Multi-Arms Lock Keeper
The Multi-Arms Lock Keeper is the fourth Lock Keeper mini-boss enemy the Phantom Thieves must defeat in Persona 5 Strikers (or Persona 5 Scramble). The mini-boss is encountered not in a Trauma Room but at the second floor of Okinawa Jail’s Monitoring Area.
All Lock Keepers | Okinawa’s Jail |
Trophies
Trophy | How to Unlock |
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Clear Okinawa Jail. |
Okinawa Jail Lock Keeper Information
Here is a breakdown of the mini-boss’ stats, strengths and weaknesses, and skills:
Okinawa Jail Lock Keeper Stats
Stagger Gauge | 8 |
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Target Date | August 17th |
Recommended Level | Level 40 or higher |
EXP Rewards | 6,000 exp (Base Game) |
Yen Rewards | 26,000 yen (Base Game) |
Okinawa Jail Lock Keeper Strength and Weaknesses
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– | – | – | – | – | – |
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Technical |
– | – | Weak | Weak | – | Weak |
Okinawa Jail Lock Keeper Party Build
Here is our recommended party member setup against the mini-boss. You can choose other party members if you want to.
Member | Persona | Essential Skills | Notes |
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Damage: Eiga or Maeiga (Curse), Zionga or Mazionga (Elec), Bufula or Mabufula (Ice), Kouga or Makouga (Bless) | Has Curse from Arsene, Ice, Electricity, and Bless skills from other Personas obtained or fused. Can also play the role of healer, buff caster, and debuff caster. |
Recovery: Diarama or Mediarama, Recarm, Amrita Drop | |||
Buff: Matarukaja, Marakukaja, Masukukaja | |||
Debuff: Tarunda, Rakunda, Sukunda | |||
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Damage: Headbutt or Swift Strike (Phys), Zionga or Mazio (Elec) | Has access to Physical and Electricity skills that the Lock Keeper does not have resistances against. Inflicts Shock status ailment on the Lock Keeper that causes it to take increased damage from Physical, Gun, and Nuclear attacks. Can use a buff skill like Tarukaja to increase an ally’s attack power in battle. |
Buff: Tarukaja | |||
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Damage: Tempest Slash or Vicious Strike (Physical), Bufula or Mabufu (Ice) | Has access to Physical and Ice skills that the Lock Keeper does not have resistances against. Inflicts Freeze status ailment on the Lock Keeper that causes it to take increased damage from Physical, Gun, and Nuclear attacks. Can use a buff skill like Sukukaja to increase an ally’s evasion/critical evasion in battle. |
Buff: Sukukaja | |||
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Damage: Kouga or Makouha (Bless) | Has access to Bless skills which the Lock Keeper is weak against. Can use a debuff skill like Rakunda to reduce the enemy defense power. Can also use healing skills. |
Recovery: Diarama or Media, Recarm | |||
Debuff: Rakunda |
Persona Compendium | Phantom Thieves Battle Ratings |
Okinawa Jail Lock Keeper Strategies
Here is a breakdown of the battle strategies against the mini-boss:
Carry SP Recovery Items
Before engaging the boss, bring a stock of HP and SP recovery items. These items can be bought from accessible vending machines, food stands, store, and restaurants. You can also buy ingredients from Sophia’s Shop and other real world stores. Then, cook these ingredients for additional HP and SP items through Joker’s Kitchen.
Land Debuffs
Start the battle by landing multiple debuffs on the Lock Keeper. Debuffs can be in the form of attack power decrease (Tarunda), defense power decrease (Rakunda), and evasion/critical evasion decrease (Sukunda). These debuffs can be accessed by Joker (from Arsene and other Personas) and Sophie.
Cast Buffs
Follow-up the debuffs with party member buffs. Buffs can be in the form of attack power increase (Matarukaja), defense power increase (Marakukaja), and evasion/critical evasion increase (Masukukaja). These buffs can be accessed by Joker (from other Personas), Skull, and Fox.
Use Bless and Curse Attacks
The Multi-Arms Lock Keeper is weak to Bless and Curse attacks which Sophie, and Joker can handle. Continue on using elemental attacks in order to break the shields and stagger the boss. Make use of narrow range elemental skills if you’re close and wide range elemental skills if you’re far from the boss.
Deal Technical Damage using Phys, Gun, and Nuke Attacks
When the mini-boss is inflicted with a status ailment such as Freeze or Shock, deal technical damage by using Physical, Gun, or Nuclear attacks. Switch between Joker, Skull, and Fox to avoid running out of HP.
Capitalize on Terrain Gimmicks
There are two terrain gimmicks accessible in the monitoring room. Quickly transfer on them and use Phantom Dash to hurt the boss.
Terrain Gimmick | Strategy |
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Lure the Lock Keeper near the scaffolding. Then, use the terrain gimmick to hurt the boss from above. |
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Lure the Lock Keeper near the steel. Then, use the terrain gimmick to hurt the boss nearby. |
Unleash Showtime Attacks
While engaging the Multi-Arms Lock Keeper, you may build up your showtime gauge. When it’s available, unleash the showtime attack against the boss. If Joker’s showtime attack is available, make sure he has the right Persona that can capitalize on the weakness of the boss.
← Sapporo Jail Lock Keeper | Osaka Jail Lock Keeper → |
Other Bosses

All Jail Monarchs
Shibuya Jail Monarch | Sendai Jail Monarch | Sapporo Jail Monarch |
Kyoto Jail Monarch | Osaka Jail Monarch | Jail of the Abyss Accomplice |
False God Demiurge | - | - |
Lock Keepers
Shibuya Jail Lock Keeper | Sendai Jail Lock Keeper | Sapporo Jail Lock Keeper |
Okinawa Jail Lock Keeper | Osaka Jail Lock Keeper | - |
Powerful Shadows
Dire Shadows
Killer Teddybear Bugbear | Snake King Raja Naga | Harlot of Desire Lilith |
Wandering Reviver Nebiros | Sun's Emissary Yatagarasu | War-Hungry Horseman Eligor |
Dark Sun Mithras | Heavenly Punisher Archangel | - |
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