Persona 5 Strikers - Sapporo Jail Lock Keeper Mini-Boss Guide

Boss guide for the Sapporo Jail Shield Lock Keeper in Persona 5 Strikers (P5S). This includes the boss enemy's strengths and weaknesses, stats and skills, and recommended battle strategies.

Persona 5 Strikers - Sapporo Jail Lock Keeper Shield Mini-Boss Guide

Guide on How to Defeat Shield Lock Keeper

Persona 5 Strikers - Sapporo Jail Lock Keeper Shield Mini-Boss Guide

The Sapporo Jail Lock Keeper is the third Lock Keeper mini-boss enemy the Phantom Thieves must defeat in Persona 5 Strikers (or Persona 5 Scramble). The mini-boss is encountered at the Trauma Cell overlaying the Metaverse version of a Odori Park in Sapporo.

All Lock Keepers Sapporo Jail

Clear Rewards

Persona 5 Strikers - Sapporo Jail King Monarch Shadow Mariko Hyodo Snow White Mariko Boss Guide

Once you defeated the Sapporo Jail Lock Keeper, you can now access the boss fight against the Sapporo Jail King or Monarch.

Sapporo Jail Monarch Boss Guide

Trophies

Trophy How to Unlock
PlayStation 4 - Bronze TrophyCage of Gluttony Torched Clear Sapporo Jail.

Trophies List

Sapporo Jail Lock Keeper Information

Here is a breakdown of the mini-boss’ stats, strengths and weaknesses, and skills:

Sapporo Jail Lock Keeper Stats

Stagger Gauge 8
Target Date August 11th (8/11)
Recommended Level Level 35 or higher
Recommended Party Members Joker, Panther, Noir, and Sophie
EXP Rewards 2,860 exp (Main Story)
Yen Rewards 31,200 yen (Main Story)

Sapporo Jail Lock Keeper Strength and Weaknesses

Persona 5 Strikers - Physical Attacks Icon Persona 5 Strikers - Gun Attacks Icon Persona 5 Strikers - Fire Attacks Icon Persona 5 Strikers - Ice Attacks Icon Persona 5 Strikers - Electric Attacks Icon Persona 5 Strikers - Wind Attacks Icon
Persona 5 Strikers - Psy Attacks Icon Persona 5 Strikers - Nuke Attacks Icon Persona 5 Strikers - Bless Attacks Icon Persona 5 Strikers - Curse Attacks Icon Persona 5 Strikers - Almighty Attacks Icon Technical
Weak Weak Weak Weak

Sapporo Jail Lock Keeper Skills

Skill Skill Effect
Teleport Sinks and automatically teleport to another spot in the battle field.
Matarukaja Buff party attack power for a certain period of time.
Marakukaja Buff party defense for a certain period of time.

Sapporo 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
Persona 5 Strikers - Protagonist JokerJoker Persona 5 Strikers - Character ListArsene Damage: Eiga or Maeiga (Curse), Psio or Mapsio (Psy), Kouga or Makouga (Bless) Has Curse from Arsene, Psychokinesis, 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
Persona 5 Strikers - Ann Takamaki PantherPanther Persona 5 Strikers - Carmen Persona Stats and SkillsCarmen Damage: Agilao or Maragi (Fire) Has access to Fire skills that the Lock Keeper does not have resistances against. Inflicts Burn status ailment on the Lock Keeper that causes it to take increased damage from Wind or Nuclear attacks. Can use a debuff skill like Tarunda to reduce the enemy attack power. Can use an Ailment skill like Marin Karin to inflict Brainwash on enemies. Can also use healing skills.
Recovery: Diarama
Ailment: Marin Karin
Debuff: Tarunda, Dekaja
Persona 5 Strikers - Haru Okumura NoirNoir Persona 5 Strikers - Milady Persona Stats and SkillsMilady Damage: Hysterical Slap (Phys), Snap or Triple Down (Gun), Psio or Mapsi (Psy) Has access to Psychokinesis skills that the Lock Keeper is weak against. Has access to Physical and Gun skills that the Lock Keeper does not have resistances against. Can use an Ailment skill like Evil Touch or Evil Smile to inflict Fear on enemies. Can also use Amrita Drop to cure allies when inflicted with status or mental ailments.
Recovery: Amrita Drop
Ailment: Evil Touch or Evil Smile
Persona 5 Strikers - Sophie SophiaSophie Persona 5 Strikers - Pithos Persona Stats and SkillsPithos 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 Mediarama, Recarm
Debuff: Rakunda
Persona Compendium Phantom Thieves Battle Ratings 

Sapporo Jail Lock Keeper Strategies

Persona 5 Strikers - Sapporo Jail Lock Keeper Shield Mini-Boss 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.

Joker’s Kitchen Guide

Land Debuffs

Persona 5 Strikers - Sapporo Jail Lock Keeper Shield 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), Panther, and Sophie.

Remove Enemy Buffs

Persona 5 Strikers - Sapporo Jail Lock Keeper Shield Remove Enemy Buffs

The Lock Keeper has an attack power and defense power buff skill similar to Tarukaja and Rakukaja. In order to remove it, use a Dekaja debuff skill. The debuff can be accessed by Joker (from other Personas) and Panther.

Cast Buffs

Follow-up the debuffs with party member buffs. Buffs can be in the form of attack power increase (Tarukaja), defense power increase (Rakukaja), and evasion/critical evasion increase (Sukukaja). These buffs can be accessed by Joker (from other Personas) only.

Use Psy, Bless, and Curse Attacks

Persona 5 Strikers - Sapporo Jail Lock Keeper Shield Use Psy Attacks

The Shield Lock Keeper is weak to Psychokinesis, Bless and Curse attacks which Noir, Sophie, and Joker can cover. 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 Wind, Nuke, and Psy Attacks

The Lock Keeper is susceptible to status ailment skills such Burn. If the boss is inflicted with Burn status, use a Wind or Nuclear attack to deal additional damage to the boss. If the boss got a mental ailment such as Brainwash or Fear, use a Psychokinesis attack instead.

Don’t Go Crazy with the Offense

The Lock Keeper will sink to the ground and teleport to another spot in order avoid your attacks further. Don’t go all out to the boss and observe to avoid wasting HP and SP.

Unleash Showtime Attacks

Persona 5 Strikers - Sapporo Jail Lock Keeper Shield Use Showtime Attacks

While engaging the Shield 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.

← Sendai Jail Lock Keeper Okinawa Jail Lock Keeper →

Other Bosses

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All Jail Monarchs

▼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

▼All Lock Keepers
Shibuya Jail Lock Keeper Sendai Jail Lock Keeper Sapporo Jail Lock Keeper
Okinawa Jail Lock Keeper Osaka Jail Lock Keeper -

Powerful Shadows

▼All Powerful Shadows
Fratricidal Destroyer Seth Guard Dog of Hades Cerberus Monarch of Snow King Frost
Fallen Snowman Black Frost Brilliant Dragonslayer Siegfried Throbbing King of Desire Mara
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Dire Shadows

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Killer Teddy Bear 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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