Halo: Combat Evolved Anniversary skulls

The 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.

List of skulls

Bandana skull

When activated, this skull give players unlimited ammo. The skull's name is a reference to the Metal Gear franchise, in which every game has an unlockable bandana that grants infinite ammunition.

Boom skull

Once the skull is activated, explosion radius will increase two-fold.

Famine Skull

Once the skull is activated, the weapons dropped by the AI, ally or enemy, would have half the ammunition they normally would.

Fog Skull

Once the skull is activated, the player's motion tracker is disabled.

Grunt Funeral skull

Grunt Funeral Skull

Once the skull has been activated, every Grunt's methane tank will explode similar to a plasma grenade when killed. This skull will only be available to those who pre-order the game.

Iron Skull

Nothing is known of this skull except for its existence in the game. It will most likely have the same effect with the Iron Skull in Halo 3 and will restart the level if a player is killed, or restart a checkpoint if multiple players are playing co-operatively.

Malfunction skull

Once the skull is activated, one random part of the HUD will disappear at every respawn.

Grunt Birthday skull

Once the skull is activated, the Unggoy's heads will explode in a shower of confetti with a headshot.

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.