There is a perfect list of all the skulls on www.halo2source.com
iit has what effect each skull has on game , the difficulty you have to be on, everything
THe Mythic difficulty is harder than legendary
......unlock Mythic with one of skkulls
YEAH RIGHT
WE'VE HAD ENOUGH FAKES THANK YOU
I dont get it, hes right. But it isnt an option, it goes away when you turn the xbox off