This page contains Halo 3: ODST Hints for Xbox 360 called "Put grunt birthday party on" and has been posted or updated on Sep 30, 2009 by game chicken. Let us know what you think of this Hint by thumbs voting.
Put grunt birthday party on
When you put this skull on every time you headshot a grunt his head will explode into confetti and will damage anyone next to him with enough power to kill other grunts next to him.
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