Brian: That's Kelly riding on Jambu's nose! I wish Kelly would ride on my nose.
Stan: I wonder if he'll ever come back and visit us.
Kyle: I don't know, but at least from now on, every time we look at the moon, we can know that Willzyx is up there, dancing with the other zypods in his castle.
(Cut to a shot of Willzyx on the moon; dead)
Title: Free Willzyx
The episode title is a spoofed reference to the 1993 movie, Free Willy.
They were going to do it for that 'N Sync guy.
Stan is referring to Lance Bass
, one of the members of the band, 'N Sync
Kyle: Yes, yes, hello? Is this Mr. Sugiyama with the Japanese space program?
Sugiyama is the last name of Trey Parker's wife (she was his fiancée at the time).
Sheila: Kyle bubbe, we're taking Ike to the new Harry Potter movie. Wanna join us?
Sheila is referring to the film, Harry Potter and the Goblet of Fire (2005).