Fuego Castle is a custom track that was designed by SpyKid back in 2012. The word "fuego" means "fire" in Spanish. The track was first showcased in a video, alongside some other unfinished tracks. In 2018, Ptpix1 approached SpyKid to ask if he could finish it. After being given the model, the track was cleaned up and made fully playable. The track itself is based on Bowser's Castle, and is divided into three sections: the castle itself, a cage section and a grass section.