Right after the theme song, the twins play chess on a table featuring the skeleton of a "something that doesn't exist"—a direct nod to the Phineas and Ferb theme song.
After a scuffle between the twins, the flashlight falls into the hands of their rival, Lil' Gideon , who shrinks them both and traps them in a jar. [S1E11] Little Dipper
The episode provides more development for Bud Gleeful and introduces the noticeably traumatized Mrs. Gleeful. Right after the theme song, the twins play
This recurring number (the creator Alex Hirsch's birthday) appears as Gideon’s school ID number. Right after the theme song
Gideon reveals he doesn't just want revenge; he wants the physical Shack because of a secret hidden within its walls. This foreshadows the hunt for the hidden journals.