Chapter 16 - Where Am I? Edit
When Drake is following Tenzin through the Tibetan Village, he will come across a few yaks. The player can pat or stroke the yaks by pressing or when near them.if pressing triangle whilst behind, drake will wave his hand near his face as if there is a stench (this will not affect the beast mode medal) . If the player does this to all four Yaks they earn the Beast Mode medal.