The book Marcy looks through has a picture of Bill Cipher from "Gravity Falls" and Goliath from "Gargoyles" as Da Vinci's Vitruvian Man.
Just 12 hours before its initial air date of May 1st, 2021, Disney announced on Twitter and Instagram the episode would be delayed due to a scheduling shift, and was replaced with a rerun of "Night Drivers"/"Return to Wartwood". However, the episode was accidentally made available on iTunes the following day, resulting in the season 2 finale leaking online. This practice garnered extreme backlash from the fanbase, the show's creator, Matt Braly, and many other showrunners. To prevent fans from watching the leaked episode early, videos of Maddie Flour, Captain Grime, Leopold Loggle, General Yunan, Felicia Sundew, Hop Pop Plantar and The Curator were released, asking fans to wait for the official airing of the episode.
Disney Channel aired the episode with a TV-Y7-FV rating and the following disclaimer: "This episode has some intense final scenes. It might be scary for younger viewers." Trailers of the season finale also featured the same disclaimer.
Around 14 May 2021, fans started speculating the finale would air on May 22. The next day, Disney and Matt Braly announced the finale would be premiere during an Amphibia marathon on May 22, which was weeks after the original release date.