Halo: The Master Chief Collection skulls
From Halopedia, the Halo wiki
Skulls are gameplay modifiers with the appearance of a human skull featured in Halo: The Master Chief Collection. Like in Halo 3: ODST, Halo: Reach and Halo 4, the skulls are no longer easter eggs in-game, and can also be accessed in the campaign menu without claiming them in campaign levels. A total 38 skulls are included in the collection, including several unique additions to Halo 2: Anniversary.
Skulls in The Master Chief Collection are divided into two categories: Scoring and Non-Scoring. Scoring skulls increase the challenge and reward players with higher score multipliers or bonuses to base enemy values when turned on. Non-Scoring skulls can either be neutral, such as Grunt Birthday Party, or in cases of cheat-like skulls, have a score multiplier of zero. Zero multiplier skulls like Scarab disqualify level times and scores from being recorded on the leaderboard and disable score and time-based achievements.
List of skulls
The games in which the skull is available are listed below each skull. Pre-order skulls are marked with ¹ and were unlocked globally on December 12, 2014. With the exception of these as well as the Swarm skull, all other skulls are unlocked from the start. Skulls marked with ² were not available in the original release of the games, but were implemented via updates in the MCC Insider Program. Skulls marked with ³ are "experimental"; starting a level with one of these skulls activated will result in a pop-up message warning "You have turned on an experimental skull which may produce unexpected scenarios or hinder your ability to complete this mission. Experimental skulls may be disabled to return the game to a normal state." The Acrophobia skull was added into the game for Halo 3 for the release of Halo 3 on PC. The Acrophobia could originally only be unlocked for use by completing a seasonal challenge to kill 343 flying enemies in Halo 3, between July 14 and July 29, 2020. It was unlocked globally after July 29, 2020. New skulls from the collection became available on Halo 3 and Halo 3: ODST with the update on 11 April 2022. Acrophobia and Bandanna were added to Halo 4 in the December 2022 update.. Acrophobia was added to Halo: Combat Evolved in July 2023. Hunter boarding via the Bandanna skull was added to Reach in September 2022, and Halo 2 in July 2023.
|Acrophobia||The Corps: Now issue rifles AND wings... (Press Jump twice to fly.)||0.00x||Yes||Yes² ³||Yes²||Yes² ³||Yes² ³||Yes² ³|
|Anger||Enemies fire their weapons faster and more frequently.||1.10x||Yes²||Yes||Yes²||Yes²||No||No|
|Assassins||All enemies in the game are permanently cloaked.||1.20x||No||Yes||No||No||No||No|
In Halo 2 and Reach, this skull will allow players to board Hunters.
|0.00x||Yes||Yes||Yes²||Yes²||Yes² ³||Yes² ³|
|Black Eye||Your shields only recharge when you melee enemies. Bash your way to better health!||1.10x||Yes||Yes||Yes||Yes||Yes||Yes|
|Blind||HUD and weapon do not display onscreen.||1.10x||Yes²||Yes||Yes||Yes||Yes||Yes|
|Bonded Pair¹||Co-op skull: When one player dies, the other player gets a large damage boost that lasts a while.||0.00x||No||Yes||Yes²||Yes²||No||No|
|Boom¹||Explosions have twice the damage radius. Light fuse, run away.||1.00x||Yes||Yes||Yes²||Yes² ³||No||No|
|Catch||Enemies throw and drop more grenades.||1.10x||Yes²||Yes||Yes||Yes||Yes||Yes|
|Cowbell||Acceleration from explosions is increased.||1.00x||No||No||Yes||Yes||Yes||Yes|
|Envy||Chief trades his flashlight for Active Camo.||0.00x||No||Yes||No||No||No||No|
|Eye Patch||Auto aim features disabled for all weapons. You'll miss it when it's gone.||1.10x||Yes||Yes||Yes²||Yes²||No||No|
|Famine||Weapons dropped by AI have half the ammo they normally would. You might want to pack an extra magazine.||1.10x||Yes||Yes||Yes||Yes||Yes||Yes|
|Feather¹||Player and enemy melee strikes impart more movement physics.||1.00x||No||Yes||No||No||No||No|
|Fog||The motion tracker is disabled. You'll miss those eyes in the back of your head.||1.10x||Yes||Yes||Yes||No||Yes||Yes|
|Foreign||Covenant weapons: How do they work? Players cannot pick up or use Covenant weapons.||1.10x||Yes||No||Yes²||Yes²||No||No|
|Ghost||AI no longer flinch from attacks.||1.00x||Yes²||Yes||Yes²||Yes²||No||No|
|Grunt Birthday Party||Grunt headshots lead to glorious celebrations.||1.00x||Yes||Yes||Yes||Yes||Yes||Yes|
|Grunt Funeral¹||Grunts die in a blaze of glory. And plasma.||1.00x||Yes||Yes²||No||No||No||No|
|Iron||Death carries a heavy price. Dying in co-op resets you at your last saved checkpoint. Dying solo restarts the level.||1.30x||Yes||Yes||Yes||Yes||Yes||Yes|
|IWHBYD (I Would Have Been Your Daddy)||Rare combat dialogue becomes more common.||1.00x||No||Yes||Yes||Yes||Yes||Yes|
|Jacked||Players can only enter ground vehicles by boarding.||1.20x||No||Yes||Yes² ³||Yes² ³||No||No|
|Malfunction||Every time you respawn, a random element of your HUD is disabled.||1.00x||Yes||Yes||Yes²||Yes²||No||No|
|Masterblaster||Co-op skull: One player's shields recharge to overshield level and can only melee while the second player has no shields but infinite ammo. Roles switch after a number of enemy kills.||1.10x||No||Yes||Yes²||Yes²||No||No|
|Mythic||Enemies have increased health.||1.20x||Yes||Yes||Yes||Yes||Yes||Yes|
|Piñata¹||Punching enemies makes them drop grenades. Beat them 'til candy comes out!||1.00x||Yes||Yes||Yes²||Yes²||No||No|
|Prophet Birthday Party||Punch that Prophet up to 11. (Each punch the player lands on the Prophet of Regret on the level Regret or the Prophet of Mercy's Gravity Throne on the level High Charity are accompanied by an electric guitar lick).||1.00x||No||Yes||No||No||No||No|
|Recession||Every shot is worth twice the ammo. Save those bullets, player.||1.20x||Yes||Yes||Yes||Yes||No||No|
|Scarab||All player-held weapons fire Scarab Gun beams.||0.00x||No||Yes||No||No||No||No|
|SO...ANGRY...||Enraged Brutes explode like a frag grenade if not dispatched within seconds. Base Brute score values are increased.||1.00x||No||Yes||Yes²||Yes²||No||No|
|Sputnik||Mass of objects is decreased, making them more easily displaced.||1.00x||Yes²||Yes||No||No||No||No|
|Streaking||Player shields constantly decay at a slow pace but recharge some with every enemy kill.||1.20x||No||Yes||No||No||No||No|
|Swarm||Hunters are much stronger. Base Hunter score values are increased.||1.00x||No||Yes||Yes²||Yes²||No||No|
|That's Just... Wrong||Increases enemy awareness of player.||1.10x||Yes²||Yes||Yes²||Yes²||No||No|
|They Come Back||Flood Combat Forms spawned by Infection Forms reanimating a corpse are much more dangerous. Flood Combat Form score values are increased.||1.00x||No||Yes||Yes²||No||No||No|
|Thunderstorm||Upgrades the rank of most enemies.||1.20x||Yes²||Yes||Yes||Yes||Yes||Yes|
|Tilt||Enemy resistances and weaknesses are increased.||1.20x||No||No||Yes||Yes||Yes||Yes|
|Tough Luck||Enemies always go berserk, always dive out of the way, never flee.||1.10x||Yes²||No||Yes||Yes||Yes||Yes|
- The description of the Acrophobia skull is a reference to The Truth and Reconciliation from Halo: Combat Evolved. where in the opening cutscene a marine says "The Corps issued me a rifle, not wings.".
- The Jacked skull will also prevent players from using mounted turrets. Unlike vehicles, turrets cannot be hijacked, therefore the skull renders them entirely unusable, though support weapons in Halo 3 and ODST can still be picked up and carried once they have been dislodged from their mounts.
The Acrophobia skull being used on Requiem.
- Halo Waypoint: The Halo Bulletin: Your Journey Begins
- Halo Waypoint, MCC Development Update - June 2020 (Retrieved on Jun 1, 2020) [archive]
- Steam, Halo 3 Celebration (Retrieved on Jun 1, 2020) [archive]
- Halo Support site, Halo: The Master Chief Collection MCC Update - April 2022 (Retrieved on Apr 11, 2022) [archive]
- Halo Waypoint, Halo: MCC | December 2022 Update (Retrieved on Dec 8, 2022) [archive]
- Halo Waypoint, Halo: MCC | July 2023 Update (Retrieved on Jul 10, 2023) [archive]