When Candice chooses her skateboard, music plays with a demon voice over it. If you play the scene backwards, the demon voice actually says "BUY REGULAR SHOW DVDs".
The game the characters play in the episode, Ladder World, is available to play as an HTML5 game here.
The phrase "Yeah-uh!" uttered by Josh at the beginning of the episode is the same phrase used by Mordecai and Rigby from J.G. Quintel's previous series, Regular Show.
When Candice is in the daycare center, she is seen playing with a keyboard that strongly resembles The Power from J.G. Quintel's previous work, Regular Show.
During the Ladder World scenes, the head of Kevin Costner from the 1995 film Waterworld appears as an obstacle.