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which ones are they? can you list them pleasei am keen to get practicing.EDIT: found them in an update, please dont reply[Edited on 06.20.2009 7:00 AM PDT]
J D O S H
The following Mythic, Famine, Black eye, Tough Luck ( Automatically is enabled from the start), Blind, Cowbell, IWHYBYD, Grunt Birthday party. ( Wait that's more than 7)
Apparently the silver skulls can be activated in the pre-game menu.