A Face That Looks a Lot Like Jesse Pinkman
On the original release of the game, a spray-painted face is tucked into a rock edge on Mount Chiliad's northern slope, and it bears an uncanny resemblance to Jesse Pinkman from Breaking Bad. It has nothing to do with the Chiliad mural conspiracy and serves no purpose whatsoever, and in the enhanced version of the game it was quietly swapped out for a drawing of a rooster instead.
