The thing about big first-party PlayStation games is that they love to acknowledge each other, giving fans some fun callbacks and Easter eggs to hunt down within their games. Horizon Forbidden West follows in the footsteps of Ghost of Tsushima, which threw in a Horizon Forbidden West armor set to go with the big PlayStation Easter eggs in its Iki Island expansion. In Horizon, there are some extremely tough-to-find PlayStation collectibles, in this case referencing Sony Santa Monica's God of...