It’s been just over five years since Firewatch was released. And oh, what a five years those have been. Created by Campo Santo and published by Panic, Firewatch is a first-person game about a fire lookout in Wyoming’s Shoshone National Forest.

The adventure has been lauded over the years, with hundreds of stories written about it, numerous awards won. But apparently, there was one thing that lots of people have been missing. In the Nintendo Switch version, which was released in December 2018, there’s a 3D platformer hidden in the game’s Free Roam mode. The platformer, dubbed Forrest 64, turns Firewatch into a Nintendo 64-style 3D platformer. It’s incredible.