The inside of the "Super Adventure Club" Headquarters pays homage to the now-closed Adventurer's Club at Pleasure Island in Walt Disney World - you can see Babylonia on the wall and the "Zeus goes fishing" statue.
At the end when the credits roll it stops at the card "Created By Trey Parker Matt Stone" and ends without showing any more cards. All though on streaming split screen credits are shown with being a clip from the most rememberable part.