Revelations (map)/Hats and Helmets

There are many wearable items in Revelations that offer various bonuses to assist players in combat, unlocked by performing specific challenges. With the exception of Al's Hat, all of them will appear on mannequin heads on the stage within the Kino der Toten area of the map.
For wearable items that offer increased Sprint Duration or Health, these will be visually reflected with either a Purple Juggernog or Purple Stamin-Up icon. These are not as potent as the Perks they represent outright, but they do stack with them without taking up any Perk Slots, as they use a secondary Perk bar above where normal Perks are displayed.
In co-op, progress towards acquiring wearable items is shared between all players, and any number of players can wear the same item when unlocked.
==Al's Hat==
The hat of Albert "Weasel" Arlington can be found in a cell on the second floor of the cell block in the Mob of the Dead section. This hat is available from the start of the game, and is purely cosmetic. 
Als Hat BO3.png|Al's Hat sitting on a table in the Mob of the Dead area.
==Dire Wolf Head==
To acquire the Dire Wolf Head, Anti-Gravity needs to be activated in the Der Eisendrache Undercroft area. Next the players have to toss a grenade in the large hole high up on the wall where the reforged arrow was picked-up for the Wolf Howl. In this map, it is very close to the Kuda wallbuy. 
A wolf skull will fall out when the grenade detonates, and sit on the floor. During Anti-Gravity, the skull will float and spin in place. 
Players need to collect 15 souls by killing zombies near the skull while Anti-Gravity is active (no wallrunning required). A wolf howling will be heard when the mask is unlocked, and the skull will disappear. The Dire Wolf Head can then be found in the Kino der Toten area on the stage, in the back center on a mannequin.
Effects:
*Sprint duration increased (Purple Stamin-Up).
*A howling can be heard if a player wearing the Dire Wolf mask kills a lot of enemies in a short time.
* Hidden effect: bypasses the Corruption Turret step for unlocking the Keeper Skull Head.
Wolf Mask BO3.png|The Dire Wolf Head on the mannequin.
==Helmet of Siegfried==
To acquire the Helmet of Siegfried, the players have to go to the Corruption Engine in the Der Eisendrache area. In front of the Corruption Engine and on the roof of Der Eisendrache above the Pyramid, a clock will be floating. The players will then need to shoot the Roman Numerals IX, III and V (935), on the clock's dial. A tolling bell audio cue will be heard.
Next, the players need to fill four urns by performing six zombie Headshots in close proximity to the urn. These urns spark identically to the process for obtaining the Storm Bow on Der Eisendrache. When an urn is complete, an electrical static audio cue will be heard.
The urns are located as follows, and can be filled in any order: 
#Der Eisendrache area (hallway leading down to circular room with the four Primis Statues).
#Origins area (small room next to Pharo wallbuy).
# Verrückt area (upstairs in the Hitchen by blood covered table).
# Kino der Toten area (projector room).
After all urns are filled, a horn will be heard. The Helmet of Siegfried can now be found in the Kino der Toten area on the stage, on the right side.
Effects:
* +1 zombie hit (Purple Juggernog).
*The sound of a horn can be heard if a player wearing the Helmet of Siegfried get a lot of kills in a short time.
Viking Helmet BO3.png|The Helmet of Siegfried on its mannequin.
==Margwa Head ==
To acquire the Margwa Head, players need to kill one of every type of Margwa with one hit to each head (Regular, Fire, Void). A Pack-a-Punched Shotgun or Sniper Rifle can be used to great effectiveness to accomplish this task. The first natural Margwa spawns in on Round 11-13, with a second spawning around Round 25-27.
* Using any Wonder Weapon to damage a Margwa will invalidate it from counting for the Margwa Head. 
* Double Tap does not invalidate the progress made towards unlocking the Margwa Head. Additionally, the Guard of Fafnir's fireball attack can be used effectively.
* For best consistency, do not shoot at the Margwa when all mouths are closed.
* Saving the last zombie (or even a few, so as long as no more new zombies are spawning) inside the Giant Apothicon for long enough will spawn any type of Margwa or a Panzersoldat randomly, even on very early rounds. This occurs approximately every 5 minutes, and every approximately 5 minutes after the spawned enemy is killed, with Parasites spawning between. While quite slow, this is an option available to players.
* 9 total Margwas will spawn during the process to obtain Audio Reel #2 during For the Good Of All Easter Egg (guaranteed to have a wave of 3 each in the order of Regular, Fire, Void), and more will spawn later in the Easter Egg during the process of retrieving the Summoning Key.
* Currently unknown if killing a Margwa this way while green smoke is present in the stomach acid pool inside the Giant Apothicon interferes with the Margwa kills for the Apothicon Mask or vice versa.
A chiming audio cue will be heard after the requirement is met. Once complete, the Margwa Head can now be found in the Kino der Toten area on the stage, on the mannequin directly to the left of the Keeper Protector Summoning Altar.
This version of the Margwa Head has more effects than the version previously seen in Shadows of Evil, which only halves the damage taken from the Margwa slam attack.
Effects:
*50% damage reduction from all Margwa attacks.
*Player deals 33% more damage to Margwas.
*Sprint duration increased (Purple Stamin-Up).
*Hidden effect: no damage or stun incurred by Void Margwa flying skulls or purple marks left on the ground by purple "marked" zombies.
Margwa Head BO3.png|The Margwa Head on its mannequin.
==Fury Head==
To acquire the Fury Head, players need to kill approximately 15 Furies specifically with Headshots. A chiming audio cue will be heard when unlocked, and it can be found on the Kino der Toten stage on the left side.
* Furies spawned by Corruption Engines do NOT count towards unlocking this item. This is because it would be possible to step off the Corruption Engine until it stops spawning enemies, and farm repeatedly until unlocked, even on very early rounds. However, this tactic does work for a possible Trial requiring players to get Fury Headshots. 
* Furies outside of Corruption Engines will spawn most often during the second Parasite Round and every Parasite Round after, as well as occasional spawns on normal rounds (starting with rare spawns on R13-14 inside Giant Apothicon, and R20 outside), becoming more common as the game progresses towards Round 30.
* As Furies tend to spawn later on, using a Sniper or Shotgun (while aiming) is recommended, as using splash damage weapons or fully automatic weapons prove more difficult to score Headshots with, as these enemies move quite fast and erratically when jumping.
* None of the Wonder Weapons featured on Revelations can score Headshots, making them useless towards unlocking the Fury Head.
Effects:
*33% damage reduction from Fury melee attacks.
*Player deals 50% more damage to Furies.
*+1 hit from zombies (Purple Juggernog).
Fury Head BO3.png|The Fury Head on its mannequin.
==Keeper Skull Head==
To acquire the Keeper Skull Head, the players have to collect the Summoning Altar parts and complete the necessary steps to build the Summoning Altar and subsequently, the Keeper Protector. The Keeper Protector will have to kill around 30 zombies, and a chiming audio clue will be heard.
Next, players will need to kill about seven Enslaved Keepers with the Corruption Turret. The Keeper Skull Head can now be found on the Kino der Toten stage on a mannequin in the back center.
* This Corruption Turret step is not necessary if the Dire Wolf Head is unlocked. If the Dire Wolf Head is unlocked, the Keeper Skull Head will instead be available so as long as it has killed around 30 zombies.
* Due to the ability of this Head to increase the duration of the Keeper Protector, it is very useful for unlocking the achievement Keep Close.
Effects:
* +1 hit from zombies (Purple Juggernog).
*50% damage reduction from Enslaved Keepers.
*Player deals 33% more damage to Enslaved Keepers.
*Keeper Protector lasts 30 seconds longer.
Keeper Head BO3.png|The Keeper Skull Head on its mannequin.
==Helmet of the King==
To acquire the Helmet of the King, players have to kill two Panzersoldats (also called Mech Z in-game, via Trials). The player has to shoot one in the in its Power Core (which is situated in the center of the armor on the chest), and keep shooting even after it is visibly destroyed until the audio cue is heard, and another in the head so that the face armor is destroyed. The first naturally spawning Panzersoldat usually spawns in around Round 18-20, and another will spawn approximately 10 rounds later. 
* It is possible to perform this requirement on just 1 Panzersoldat. While tricky, it can be performed by shooting the Power Core first and continuing fire at the destroyed Power Core spot until the first audio cue is heard, then shooting the face armor. It can also be performed in the opposite order, but this is more difficult and has less margin for error, as more bullets will be flying at the exposed head.
** Using an SMG, Assault Rifle, or LMG in careful bursts is recommended as to best avoid causing too much excess damage. Double Tap can still be active while using these weapons.
** Two audio cues will still be heard if done in this manner.
* Saving the last zombie (or even a few, so as long as no more new zombies are spawning) inside the Giant Apothicon for long enough will spawn any type of Margwa or a Panzersoldat randomly, even on very early rounds. This occurs approximately every 5 minutes, and every approximately 5 minutes after the spawned enemy is killed, with Parasites spawning between. While quite slow, this is an option available to players. 
* A common community name for this Helmet is the Knight Helmet. However, it belongs to the Wolf King, and is originally seen in one of the paintings for obtaining the Wolf Howl on Der Eisendrache. 
Players now have to kill around 50 zombies with Traps, such as the Electro-Shock Defenses in the Verrückt area, or the Flogger in the Origins area. One last audio cue with a chime and a Panzersoldat death sound will be heard when complete. The Helmet of the King can now be found on the Kino der Toten Stage on the right side.
* The Panzersoldat Power Core/face armor objectives and the Trap kills objective can each be performed in any order.
Effects:
*50% damage reduction from Boss attacks. ("Boss" attacks refer to Panzersoldats and all types of Margwas).
*Player deals 33% more damage to Bosses.
*No damage/shellshock from elemental zombies death effects (Napalm Zombies created by Fire Margwas, Electrified Zombies created by Panzersoldat Shock Mines).
*Sprint duration increased (Purple Stamin-Up).
*Hidden effect: No damage or stun incurred from Panzersoldat Shock Mines, Panzersoldat death explosions, Void Margwa flying skulls, or purple marks left on the ground by purple "marked" zombies. While this effect is identical to a part of the effects of the Danger Closest GobbleGum, players still receive damage from Li'l Arnies or splash damage weapons.
Knight Helmet BO3.png|The Helmet of the King on its mannequin.
== Apothicon Mask==
To acquire the Apothicon Mask, the player needs to kill the following enemies listed below. All enemies must be killed in the Giant Apothicon green stomach acid, specifically while the player is standing in the stomach acid and while the dense green smoke is present, which occurs every few minutes alongside the ground rumbling (the smoke also lasts for a few minutes before dissipating). 
* Using Li'l Arnies will assist in getting needed kills safely.
* Using the Apothicon Servant/Estoom-oth will also work, even if the black hole kills enemies slightly above the acid. The main factor is ensuring that the dense green smoke is present and kills are done in the stomach acid pool for the kills to count.
* Enemy kill requirements can be fulfilled in any order.
Required Enemies: 
*15 Parasites (Parasite Rounds will easily meet the total, but also naturally spawn one at a time inside the Giant Apothicon on all rounds. Despite being airborne, on death they fall to the ground in the acid.)
*5 Enslaved Keepers (Begin to spawn on Round 13-14 inside Giant Apothicon, and more normally every round starting with Round 20, becoming more common towards Round 30.)
*15 Spiders (Occasionally spawn in moderate numbers within the Giant Apothicon every few rounds.)
*10 Furies (Begin to spawn Round 13-14 inside Giant Apothicon, starting with second Parasite Round as the most prominent spawns, and more normally every round starting with Round 20, becoming more common towards Round 30.)
*50 Zombies (No special restrictions apply.)
* 3 Margwas (At least 2 different types of the 3 types of Margwa must be killed. Any combination of Regular/Fire/Void will complete this requirement.)
When enough of an enemy has been killed in the stomach acid, a chime audio cue will be heard. On the final kill requirement, two will be heard: the usual chime from the final kill requirement being fulfilled, and a Margwa spawning sound as the ground rumbles. The Apothicon Mask can now be found on the Kino der Toten stage, in the back center, before the small stairs leading to the Dire Wolf Head and Keeper Skull Head mannequins, on the left side.
Effects:
* +1 hit from all enemies (Purple Juggernog).
* Sprint duration increased (Purple Stamin-Up).
*Player does 50% more damage against all enemies.
*33% damage reduction from all enemies.
**The +1 hit effect and 33% damage reduction result in needing 10 hits from a normal zombie to down a player with Juggernog, and four hits without.
** The 33% damage reduction also applies to hits to the Guard of Fafnir on a player's back, allowing the shield to block an impressive 70 attacks before breaking, becoming even better than the upgraded version Tiamat's Maw that appears only on Gorod Krovi. 
** Margwas will still one shot the Guard of Fafnir in one slam attack.
*Hidden effect: No stun incurred by Panzersoldat Shock Mines or Void Margwa flying skulls. However, unlike the Helmet of the King and Margwa Head, these attacks will still deal damage to players. Additionally, shellshock and damage is still incurred from death explosions from elemental zombies created by Panzersoldats, Fire Margwas, and purple marks on the ground created from "marked" zombies by Void Margwas.
God Mask BO3.png|The Apothicon Mask on its mannequin.
Category:Easter eggs