How to Unlock the PhD Flopper Perk in Black Ops 6 Zombies’ Citadelle des Morts: Step-by-Step Guide

Alina4 days ago

3 Key Takeaways:

PhD Flopper Returns: This iconic perk is missing from the Citadelle des Morts Perk Machine lineup but can still be unlocked through a hidden bartender minigame.
Alcohol Bottle Hunt: Collecting three specific alcohol bottles scattered around the map is the first step to activating the secret easter egg.
Survive in Style: Successfully completing the minigame not only rewards you with the PhD Flopper but also adds a fun twist to your survival strategy.

The Perk That Players Miss Most

In Black Ops 6 Zombies, survival is all about preparation picking up the right perks, crafting Wonder Weapons, and mastering the intricacies of the map. But when you’re thrown into the eerie halls of Citadelle des Morts a haunted French castle swarming with Doppelghasts it feels like something essential is missing. That something is the PhD Flopper, a fan-favourite perk that prevents explosive and fall damage while unleashing devastating dive-bomb attacks.

Unfortunately, Citadelle des Morts lacks a dedicated PhD Flopper Perk Machine. Players have found themselves scrambling for a solution, especially in the higher rounds where survival depends on every advantage. The good news? There’s a hidden easter egg that guarantees this perk early on. All you need to do is embrace your inner mixologist and become a zombie bartender.

Here’s everything you need to know, from finding the elusive alcohol bottles to mastering the bartending minigame.

What is PhD Flopper, and Why Do You Need It?

PhD Flopper is an absolute game-changer in Black Ops 6 Zombies. Its effects include:

Immunity to explosive damage.
Resistance to fall damage.
A lethal dive-bomb attack that damages or outright kills nearby zombies when you land.

This perk becomes especially useful when paired with explosive Pack-a-Punched weapons, such as grenade launchers or rocket launchers. However, in Citadelle des Morts, getting your hands on this perk isn’t as simple as buying it from a Perk Machine. Instead, you’ll need to unlock it through a secret side quest.

Step 1: Collecting the Alcohol Bottles

To begin the PhD Flopper easter egg, you’ll need to track down three alcohol bottles hidden around the Citadelle des Morts map. Here’s where to find each one:

Bottle 1: Dining Hall

Head to the Dining Hall, located in the northeast section of the map.
Look for a bottle on the floor near a table with a red couch in the corner.

Bottle 2: Sitting Rooms

Go to the Sitting Rooms, close to the Stamin-Up Perk Machine.
Find a medical cabinet along the east wall. The alcohol bottle is on the bottom shelf, surrounded by other items.

Bottle 3: Oubliette Room

Navigate to the Oubliette Room, a dark and eerie area deep within the castle.
Look for a chessboard on a table beside a red sofa. The final alcohol bottle is underneath the table.

Pro Tip: You’ll need Essence (in-game currency) to unlock doors leading to these areas, so plan your route carefully and save up.

Step 2: Returning to the Bar

Once you’ve collected all three bottles, it’s time to return to the starting spawn area, Town Square. Enter the Tavern and head behind the bar, where you’ll find a metal tray on the north side. Interact with the tray to initiate the bartending minigame.

Step 3: Completing the Bartending Minigame

The bartending minigame is where things get interesting. Here’s how it works:

Zombie Patrons: During the minigame, zombies will stop attacking you and line up at the bar, waiting to be served. Each zombie will display a glowing ring in either red, blue, or green, indicating their drink preference.
Serving Drinks: Behind the bar, you’ll see the three alcohol bottles you collected, each glowing in a corresponding color.
- Interact with the bottles to pick up a glass of the matching drink.
- Deliver the drink to the zombie by placing it on the glowing ring.
Timing: The minigame lasts about 60 seconds (though there’s no visible timer). Your goal is to serve as many zombies as possible within this time frame. Aim for at least 20 successful matches.

Minigame Tips:

Be quick! Misplacing a drink wastes precious seconds and doesn’t count toward your total.
Use the downtime between zombie waves to plan your movements behind the bar.

If you succeed, you’ll be rewarded with a free PhD Flopper perk.

Step 4: Survive the Onslaught

Once the minigame ends, the zombies won’t be so friendly anymore. All undead patrons will immediately resume their attacks, so be ready to fight your way out of the Tavern.

Why You Should Prioritize the Bartender Easter Egg

Unlocking PhD Flopper early can give you a massive edge in Citadelle des Morts. Not only does it save you the trouble of waiting for the high rounds (where it occasionally spawns in the Der Wunderfizz machine), but it also helps you dominate mid-game combat.

Here’s how it pairs well with other tools:

Explosive Pack-a-Punched Weapons: Turn your grenade launcher or rocket launcher into a crowd-clearing monster.
Fall Damage Immunity: Useful for the map’s vertical areas, especially when being chased by hordes.
Dive-Bomb Attacks: Combine the perk’s dive-bomb feature with choke points to quickly thin out zombie groups.

Additional Tips for Surviving Citadelle des Morts

While the PhD Flopper is essential, it’s only one piece of the puzzle. To survive this challenging map, you’ll also want to:

Upgrade Your Elemental Swords: The four elemental swords are game-changers, offering unique powers tied to fire, ice, lightning, and shadow. Prioritize upgrading these weapons early.
Learn the Map Layout: Citadel of M
Manage Resources: Don’t waste Essence on unnecessary doors. Unlock paths strategically to minimize backtracking.

FAQs

1. Can you attempt the bartender minigame more than once?

No, the bartender minigame can only be completed once per run. If you lose the PhD Flopper by getting downed, you’ll need to restart the game to attempt it again.

2. What happens if you fail the minigame?

If you fail to serve enough drinks within the time limit, the minigame ends without rewarding you the PhD Flopper perk. You’ll have to rely on the Der Wunderfizz machine later in the game to obtain it.

3. Do the alcohol bottles respawn?

No, the bottles do not respawn. Once you pick them up, they’re permanently removed from the map for that run.

4. What other perks are essential in Citadelle des Morts?

Aside from PhD Flopper, prioritize perks like Juggernog (increased health), Stamin-Up (faster movement), and Quick Revive (faster self-revival in solo mode).