Agro – Shadow of the Colossus
Just thinking about Agro brings a tear to my eye. In the forbidden region, Agro was Wanderer's only friend. This horse wasn't just a vehicle, she was integral in the defeat of certain colossi and was heavily invested in Wanderer's success. I've never cried for any other animal in a video game, but even imagining that loyal horse makes my eyes start to water.
