Halo: Combat Evolved/Oddball
In the oddball game variant, you must hold the skull (the oddball) for the longest amount of time. You can win by having the largest hold time when time runs out, or by reaching the maximum hold time goal.
When holding the skull, you can no longer use weapons and can only melee with it. Depending on game settings, when you hold the skull you may run slower and may have an increased melee attack.