Matt Braly, who also worked on
Gravity Falls, said. “I just didn’t know when or how. The two shows share so much DNA that it seemed like a missed opportunity not to have the worlds interact in some fashion. So when
Amphibia writer
Jenava Hudek pitched an episode where the Plantars would stop at a creepy wax museum during their roadtrip, I knew this was our golden opportunity.
Jenava herself was a huge
Gravity Falls fan and leapt at the chance to work with its iconic characters. The decision was made early to feature alternative universe versions of Grunkle Stan and Soos as frogs. This would be the easiest way to pay homage without stepping on anyone’s toes continuity wise.”