If you don't start the level from the beginning the skull won't appear. If you did start from the beginning i don't know.
Skull Haven I play Halo 1 though
the primary ones are: iron skull, black eye skull, tough luck skull, catch skull, cloud skull, famine skull, thunderstorm skull, tilt skull, mythic skull and the secondary ones are: blind skull, cowbell skull, gruntbirthday party skull, iwhbyd skull and all of them are accessible from the start so you dont have to look for them. hope i helped :P
In Halo: Reach, the Cowbell skull increases the acceleration scale from explosions by 3x. In other words, the radius of the explosion is increased and you'll need to be farther away if you want to avoid receiving damage.
When you have the skull menu brought up, click on the skulls you want to activate to activate them. Simply, move the control stick to the skull, and press the button.
it ether affects the gme to make it harder or it makes more fun like the grunt birtday party skull when you shoot a grunt in the head but all but two of the skulls make it harder so if you search this then you must like halo i would be suprised i you dont it is a great game if you want to know more then just ask me ok i know most there is to know about halo.
You have to play on at least normal.
you need to be playing on normal,heroic,legendary to find any skull on halo 3
On campaign on halo 3 (difficulty normal or above) by the river on the first level jutting out on a rock theres a skull.
You can play on any difficulty you just have to find them
if it is the halo e.c It will say halo live update. halo update has a picture of legendary. like the one where you choose the difficulty on halo. two swords and a skull
no but it has to be on normal or harder for the skull to pop up
No you cannot, you must start from the beginning of the level. It also must be on normal, heroic, or legendary difficulty, or the skull will not show up. Even if the skull may be at the end of the level, you must still start at the beginning If you are trying to complete the game on legendary, and you have passed the spot, I recommend beating it first, and then replaying it on normal difficulty. Good Luck.
Every Skull, except the Blind and Assassins Skulls, are only available on Legendary difficulty.source: http://halo.wikia.com/wiki/Halo_2_Skulls
You're probably jumping through the rings in the correct order, but if you are touching the rings the skull will not appear. It also has to be on Normal or harder difficulty.
This skull is a silver skull. It is strictly for your entertainment and you won't get an achievement for it.
It depends on what difficulty you play on, Easy, Normal, Heroic or Legendary
You have to complete the campaign on normal difficulty.