The skulls on halo 3!?

[Trent]

I know how to pick up the skulls in the campaign but i dont know what to do with them after that! help me plz!

 

[My Name Is Nobody]

go to main menu then mission select select any mission and while the mission is loading press x and look for skulls option and select anyone u want to use and any amount


the eyes of the skull should turn red when selected
these dont really help u in game they just make the game more difficult/challenging

 

[texasbaseball987]

look on youtube for halo 3 skulls

 

[Zayed H]

when you get the skulls you get achievements and cool armour check it out wen ur gonna change up ur characters colors or appearence

 

[Henrick Steele]

I wouldn't use them...they are kinda lame
If you go into the start menu I'm pretty sure there is a "skull" selection and you can turn them on during the game, but you CAN'T turn them off after they are on.