It makes uncommon dialogue very common.
This means that things your noble team, marines near by, covenant, and other talking AI will say different phrases. Things that would you would expect to hear are your teammates laughing, giggling, making jokes, catch phrases, etc when you turn the IWHBYD scull on. When off, they will speak normally and professionally. It does not effect difficulty or game play. If you mute your TV, you wouldn't know the difference from the scull being on or off.
Chat with our AI personalities
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
it is very complicated to get the skull, you have to watch videos on how to get the skull
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.
after Halo reach,there is no more In total, there is :Halo 1,Halo 2, Halo 3, Halo ODST, Halo wars and Halo reach