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The subject of this article appears in Call of Duty: Black Ops 4 The subject of this article appears in Call of Duty: Black Ops Cold War The subject of this article appeared in Zombies mode
(PhD) Night-time scene. (PhD) The streets are mean. (PhD) The things I have seen. The good, (PhD) the bad, and the in-between. When you dive to prone, you are surely gonna own, PhD (Flopper)! When you dive to prone, it's gonna shake ya to the bone, all the zombies gonna groan, 'cause of PhD! (PhD) The feelin's growing strong. (PhD) So right that it feels wrong. (PhD) Like the chorus of a song. (PhD) Not short but not too long. Slap your body to the floor, everybody needs some more, of your lovin', your explosive lovin'. When you dive to prone, it's gonna shake ya to the bone, all the zombies gonna groan, cause of PhD! (PhD) (Flopper)! Damn straight.
— Jingle
For the predecessor, see PhD Flopper.

PhD Slider, fully known as PhD Slider Soda, is a Perk-a-Cola featured in Call of Duty: Black Ops 4 and Call of Duty: Black Ops Cold War Zombies. It is the successor of PhD Flopper, a perk previously featured in Call of Duty: Black Ops and Call of Duty: Black Ops II.

Overview

Call of Duty: Black Ops 4

"Slide to build up a charge. Once fully charged, slide into an enemy to trigger an explosion. Gain full resistance to self-inflicted explosive damage and partial resistance to enemy explosive damage."
— Description

PhD Slider, when purchased, allows players to create an explosion that can kill zombies by sliding into them, as well as reduce explosive damage the player receives. In order to create an explosion, the player must first charge up the perk, which can be achieved by sliding. Once a charge is ready, the perk icon will begin to pulsate and flash. When the perk is initially purchased, the player will already have a full charge ready.

When PhD Slider is set as the "Modifier" perk and the player has all of their other perks, the perk will allow the player to have increased sliding distance, as well as having immunity to trap damage whilst sliding. Players will also gain increased explosive damage on enemies when entering a slide from a greater height.

In Create-A-Class, PhD Slider is unlocked at Level 42 as the last unlockable Perk, and can be applied to the player's Perk loadout to appear in any map. It can also be obtained randomly through the use of Secret Sauce if available and through a myriad of other Perk-based rewards and items within the game.

On January 15th, 2019 with Patch 1.11, PhD Slider was buffed, allowing players to take zero self-inflicted explosive damage. However, the damage reduction for enemy explosive attacks has been reduced from 80% to 50%.

Call of Duty: Black Ops Cold War

"Sliding into enemies triggers an explosion. The size and damage increases the farther you slide before impact."
— Description

PhD Slider will be released with the Season Six content update for Call of Duty: Black Ops Cold War on October 7th, 2021. It will be available in Der Wunderfizz on all maps, and featured within its own perk machine on Forsaken, which reimagines the original PhD Flopper's perk machine.

PhD Slider will allow the player to generate an explosive burst of Aetherium energy upon sliding into a zombie, with the size and damage of the burst being dependent on the distance the player slid before impacting a target.

Tiers

In Call of Duty: Black Ops Cold War, PhD Slider can be permanently upgraded with the use of Aetherium Crystals, yielding a variety of new additional bonus effects alongside its base ability.

  • Tier I - Immunity to environmental damage while sliding.
  • Tier II - Increased slide duration.
  • Tier III - Immunity to self-inflicted explosive damage.
  • Tier IV - Increased slide speed.
  • Tier V - Falling from a large height will trigger an explosion. The size and damage increase the higher you fall.

Locations

Call of Duty: Black Ops Cold War

  • Die Maschine - Can be purchased from Der Wunderfizz. It can also be obtained as a Legendary reward from the Trials system.
  • Zombies Onslaught - Randomly acquired from a Random Perk power-up.
  • Firebase Z - Can be purchased from Der Wunderfizz. It can also be obtained as a Legendary reward from the Trials system.
  • Outbreak - Can be purchased from Der Wunderfizz or randomly acquired from a Random Perk power-up. It can also be obtained as a Legendary reward from the Trials system.
  • Mauer der Toten - Can be purchased from Der Wunderfizz, obtained as a Legendary reward from the Trials system, and randomly rewarded from the Nightclub easter egg.
  • Forsaken - In the Observation Tower, to the left of the zipline leading down to the Burger Town Rooftop. It can also be purchased from Der Wunderfizz and obtained as a Legendary reward from the Trials system.

Achievements/Trophies

  • The Doctor is In (15 Gamerscore.png/Bronze Trophy Bronze Trophy PS3 icon.png) - Use PhD Slider to fall 10 feet and kill 10 zombies at once.

Gallery

Call of Duty: Black Ops 4

Call of Duty: Black Ops Cold War

Trivia

  • Despite going by a different name, PhD Slider re-uses the original PhD Flopper jingle, which erroneously mentions the latter's name and diving to prone in spite of PhD Slider's sliding mechanic.
  • According to the nutrition facts on the PhD Slider can, one can of PhD Slider contains: 238.02 calories, 70g of total fat, 1800g of sodium, 90g of total carb, 70g of sugars, and 30g of protein.
  • According to the ingredients list on the PhD Slider can, PhD Slider contains the following: castor oil, nitroglycerin, powdered graphite, blasting cap extract, and distilled banana peel.
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