The way I did is you go to restart at last checkpoint or just restart the level
a harder game!
You can if you are playing offline or a custom game, but skulls are removed from the maps in matchmaking
There aren't really Skulls, they're more like glitches in the game.
you have to restart the game and activate skulls from the main menu
Please visit the Gamespot game guide for Halo 3. There you will find all the locations of the Halo 3 skulls.
no.... im a holo freak.... in fact to get skulls in halo you find them when you play each level... so each level has a skull hidden in it... you just have to look for it...
In the wave options when customizing a firefight game.
There are various skulls you can find hidden in Halo: Combat Evolved. The first skull is hidden in the first room in the game behind some barrels.
Get 1000 gamerscore for specifically Halo 3. You also unlock the Security Helmet.
I'm not sure how to use them, but when you activate a skull, I think it unlocks extras in the game.
Skulls are Easter eggs in Halo 3 designed to make the game more challenging or interesting. "Gold Skulls" will grant you achievements, worth 10 Gamerpoints a piece when you first get them, and add multipliers to your campaign meta-game score. There are 9 Gold Skulls. Gold skulls affect the difficulty of game-play, making the game more challenging. "Silver Skulls" do not unlock achievements or add multipliers to your meta-game score. They are differentiated on the selection screen by their background, but are identical in-game. There are 4 Silver Skulls. Silver skulls affect the physics, dialog and appearance of the game-play. Collecting 5, 9, and all 13 skulls of either type will unlock the Hayabusa Chest, Shoulders, and Helmet pieces, respectively, for usage in Multiplayer and Matchmaking. And when you pick up skulls in the game, I dont recomend trying to use them as a primary weapon. LOL
So far, the datapads in Halo: Reach have no function, but it is possible that, as they did with the skulls, Bungie will add some type of reward or mini-game for them to follow.