You may notice a new twist in the latest version of Halo 3. There are 13 skulls concealed somewhere within the battle zones, nine gold and four silver. However, the interesting part is that when you pick up any of the Halo 3 Skulls, no information box appears to tell you how they perform if you activate them. You will have to learn that on your own. The gold skulls will grant you an achievement and add a multiplier to improve your scoring but the silver skulls will not. They are as treacherous as the gold and a danger to both you and your enemies.

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