Red Dead Redemption 2’s infamous animated horse testicles, which are realistic enough to contract in cold weather and expand again in the warmth, were apparently not a feature mandated by Rockstar. As iconic as they’ve become – a symbol of extraordinary detail in the game – they didn’t originate from a list of features that needed to be added to the game. The horse testicles were instead the unexpected work of one person, or a group of people, autonomously working on the Cowboy epic.