Hunting rock

From Halopedia, the Halo wiki

Hunting Rock is an Unggoy simple game where each participant kills a small or medium sized creature by throwing a rock at it. Each kill is marked based on how difficult or easy it was to kill the creature. A Huragok named Lighter than Some used one of the rocks to kill a human named Henry Gibson in defense of his friend, a Grunt Deacon named Yayap. [1]

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