Halo: Combat Evolved Anniversary skulls
From Halopedia, the Halo wiki
Halo: Combat Evolved Anniversary Skulls are game modifiers that will be featured in Halo: Combat Evolved Anniversary with the appearance of a human skull. Like in Halo 3, they must be hunted down within the campaign levels to gain access to them. The skulls and the effects will not be visible in Classic mode.[1]
List of skulls
List of Gold Skulls
Iron skull
When activated, this skull will restart the level if the player is killed, or reload the last checkpoint if multiple players are killed playing co-operatively.[2]
Mythic skull
When activated, the health of Covenant infantry will be doubled.[3]
Foreign skull
When activated, players will no longer be able to pick up Covenant weaponry.[3]
Recession skull
When activated, every shot the player fires would deplete two rounds instead of one. For plasma-based weapons, the depletion rate is doubled.[1]
Black Eye skull
When activated, the only way players are able to recharge their energy shields after taking damage is to melee an enemy.[3]
Fog skull
When activated, the player's motion sensor will be disabled.[2]
Famine skull
When activated, weapons dropped by the AI - ally or enemy - would have half the ammunition they normally would.[2]
Eyepatch skull
When activated, auto-aim will be disabled.[3]
Malfunction skull
When activated, one random part of the Heads-up display will disappear after every respawn.[2]
List of Silver Skulls
Boom skull
When activated, all explosions' damage radius will increase two-fold.[1]
Bandana skull
When activated, players will have unlimited ammo. The skull's name is a reference to the Metal Gear franchise, in which every game has an unlockable bandana that grants the player infinite ammunition.[1]
Grunt Funeral skull
When activated, every Unggoy's methane tank will explode similar to a plasma grenade when killed. This skull will only be available to those who pre-ordered the game.[4]
Grunt Birthday skull
When activated, Unggoy will explode in a shower of confetti with a headshot.[1]
Pinata skull
When activated, Covenant infantry will drop a Plasma grenade when they die.[3]