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All 13 (4 silver/9 gold) skull locations for halo 3. Get all 13 to unlock Hyabusa head. Get 5 to unlock body.
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NOTE: You do not have to play the level on legendary, you can simply play it on normal.
NOTE: You do not have to finish the level to collect the skull. You can simply get the skull, then save and quit. This will unlock the skull when you press X in the campaign playlist.
Skulls In This Guide 1. Blind 2. Iron 3. Black Eye 4. Grunt Birthday Party 5. Tough Luck 6. Catch 7. Fog 8. Famine 9. Cowbell 10. Thunderstorm 11. I Would Have Been Your Daddy (IWHBYD) 12. Tilt 13. Mythic
NOTE: the order for the skull IWHBYD is as follows 4 6 5 4 5 3 4