Playing Persona 5 on Merciless mode is a true test of skill, requiring careful planning, resource management, and strategic execution. This guide covers key mechanics, challenges, and crucial tips to help you 100% complete Merciless mode without using New Game+, including maxing all Confidants, social stats, and completing all side content.

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What’s Different in Merciless Mode?

Merciless mode introduces several major changes that make the game significantly harder compared to Hard mode:

• Enemies deal 60% more damage, while your party deals 20% less damage.
• Experience and Yen gains are reduced by 60%, forcing efficient resource management.
• Weakness, Critical, and Technical damage is tripled, making proper use of elemental weaknesses essential.

Due to these changes, level grinding is much harder, and players must be extremely strategic in battles to progress efficiently.

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General Tips for Surviving Merciless Mode

1. Efficient Dungeon Runs Are Key

Your dungeon schedule is tight. Typically, you will:

• Reach the treasure in one trip
• Fight the boss 2 days later

Since you have no extra days for additional trips, each run must be as efficient as possible. SP conservation and enemy management are critical.

2. Save Scumming for Best Outcomes

Due to the difficulty of battles, be prepared to:

• Reload saves if battles go poorly.
• Reset enemy spawns to farm efficiently.
• Start over within reason if you get bad results in key fights.

3. Ambush or Be Destroyed

• ALWAYS ambush enemies to get the first turn.
• If an enemy ambushes you, you’re in serious trouble.
• Aim to win in one turn to minimize damage and resource depletion.

4. Managing SP and Ammo

SP and ammo are your most valuable resources:

• Ammo only refills when leaving a Palace.
• SP determines how long you can stay in a dungeon.
• SP drinks from vending machines (restocked weekly) are cheap and effective:
  • Bathhouse vending machine (Yongen-Jaya): 4 drinks (100 Yen each, 5 SP per use).
  • School Courtyard vending machine: 2 drinks (300 Yen each, 5 SP per use).

These small SP items add up and can be lifesavers during extended runs.

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Money Farming and Negotiation Strategies

1. Shadow Negotiation for Money

Money is extremely limited, so maximizing gains is crucial.

• Always negotiate for Yen instead of killing every enemy.
• Shadow payouts vary:
  • Jack-o’-Lantern gives higher amounts.
  • Incubus tends to give the least.

To maximize profits:

• Kill the two weakest enemies first.
• Knock down the last enemy and negotiate.
• If multiple enemies remain standing, ensure you knock them all down before starting negotiations.

2. Sell Unneeded Items for Extra Cash

On April 18th, you can sell Soma (from the free Healing Item DLC) for 50,000 Yen at Untouchable (Iwai’s shop). This allows you to:

• Buy top-tier weapons and armor early.
• Skip gun purchases (since they don’t increase bullet count, just accuracy).
• Buy SP-restoring items for dungeon longevity.

3. Prioritize Spending on SP and HP Items

• Buy Take-Med All from Takemi (50 HP healing for all party members).
• Skip Revivadrin (Revive items) since you find Revival Beads in Palaces.
• Invest in SP-recovery drinks weekly.

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Battle Strategy & Damage Optimization

1. Weakness Exploitation & Triple Damage

Since weaknesses, criticals, and technicals deal triple damage, the best way to survive is:

• Identify enemy weaknesses ASAP (Analyze menu or trial-and-error).
• Use technical damage to knock down enemies even if you don’t hit a weakness.

2. Hold Up and All-Out Attack Usage

Once all enemies are down, use Hold Up mode to either:

• Perform an All-Out Attack for massive damage.
• Negotiate for money or items.
• Recruit the enemy as a new Persona (if Joker’s level allows it).

3. Baton Pass Usage

Since SP conservation is key, use Baton Pass to:

• Increase attack power after passing turns.
• Conserve SP by using lower-cost skills instead of spamming Persona abilities.

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Early Game Optimization

1. April Shopping Priorities

• Sell Soma for 50,000 Yen (if using DLC).
• Buy SP-restoring drinks from vending machines.
• Buy armor and weapons for better survivability.
• Get Take-Med All from Takemi for emergency healing.

2. Making the Most of the First Palace

• Ambush as often as possible.
• Farm Yen by negotiating.
• Use free SP items to extend your runs.
• Do not waste Revival Beads—your goal is to avoid death, not recover from it.

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Final Thoughts: Is Merciless Mode Worth It?

Playing Persona 5 on Merciless Mode is not for the faint of heart, but it provides a brutal yet rewarding challenge for players looking for a true test of skill. The game forces you to optimize your dungeon runs, manage resources carefully, and master the art of exploiting weaknesses and negotiations.

For those who enjoy challenge runs, Merciless mode is a fantastic way to experience Persona 5 at its most strategic. Plan ahead, manage your resources, and make every move count!

If you’re attempting a 100% Merciless run, be prepared for trial and error, smart planning, and grinding where needed. With patience and the right strategies, you can achieve it.

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If you found this guide helpful, stay tuned for more detailed Palace-by-Palace breakdowns coming soon!