The spider and mice Jake encounter in the wall are animated similar to silent cartoon characters; the spider in particular wears white gloves which were common in many early cartoon characters such as Disney’s Mickey Mouse and Fleischer Studio’s Bimbo.
This episode is dedicated to Armen Mirzaian, who died February 21, 2013. A storyboard artist who worked on Adventure Time as well as on CatDog, Transformers, and other animated series. On Adventure Time, he storyboarded “What is Life” and “Business Time,” and helped write “The Jiggler.” He was killed in a car crash in February at the age of 35.
That last night’s episode was a “moment of silence”
Adventure time trivia: Candy Streets~ When the cats are in the suits with a suitcase, this is similar to the character, Business Cat, from Our New Electrical Morals. In the Candy Drugstore behind Ann there is katakana (Japanese) on the glass that reads “ファーマシー”, meaning “pharmacy.”
When Ann is getting the empty jar down, on the far right of the screen, there is a bottle with Viking ruins on the label; they possibly spell out “Eelaei.” Viking ruins are also on the yellow carton next where the jar was sitting; they possibly spell out “Apreil”.
Jake turns into a pipe that Finn inserts into his mouth. This is a reference to Sherlock Holmes.
Several connections to “Mystery Train” appear in this episode, including the return of the Candy Kingdom’s train system (and many of the former passengers) and Jake transforming into a person (such as he did as “The Conductor”).
When Jake stretches into a lawyer, the form resembles the Business Men from the episode “Business Time.”
Adventure time trivia: episode Shh!
The tomb BMO was hiding in references King Tut’s tomb.
Jake breaks open the wall with an axe in a similar fashion to Jack Nicolson in the film “The Shining”.
The way Finn and Jake ripped their signs to say “BMO, we love you. We’re Finn and Jake for real! We’re not talking today because we’re playing a game! We love you!” is similar to creating a stick-up note.
It is revealed in this episode that BMO can smell.
Also, he seems to be attracted by the smell of technological equipment.
The title card references the part when Jake hacks into a wall to get to BMO.
One of the pictures on BMO’s tomb shows a bikini babe.
This is the only episode that BMO attacks Finn and Jake.