Free Willzyx/Trivia

Trivia

 * This episode didn't air in Latin America.
 * For the first time realistic drawings of the kids are shown. Nico Agnone (a relative of one of the animation crew members) was the model for Stan and Kyle according to a South Park Studios FAQ.
 * There's no way that the announcers, who are up inside a glass broadcasting box, would hear the boys talking to the whale from down below, unless they have hidden mics near the tank
 * The average fully grown male orca weighs about 7,000 pounds. It would have been impossible for a few nine year old boys to lift Jamboo out of the tank, brought the swimming pool out of the park with the whale in it, brought him back to Craig's house, and all gotten home before anyone knew they were gone.
 * The Mexican version of NASA was called MASA. The word masa in Spanish means mass or dough.
 * The real-life mexican space agency is the Agencia Espacial Mexicana, but when this episode aired, it was Satélites Mexicanos.
 * The A.L.F. leader bears a resemblance to PeTA founder Ingrid Newkirk.
 * The title "Free Willzyx" is a reference to the movie Free Willy.
 * The whale present on the moon has since become a running gag, being shown whenever there is a shot on the moon. Willzyx can been seen in "201" and "Coon 2: Hindsight".

Goofs

 * When the announcer says "Bunch of retards" at the end of the whale show, the audio doesn't match up with the mouth.
 * Before the gunfight, as the bike-cops (one of whom kneels) order A.L.F. to put away the guns, the moving van driver is first seen to step away and later standing next to them again, as the other one kneels too. Then the woman shouts "Save the whale!" and the shoot-out begins. From that moment, the driver is completely disappeared. The woman drives the van and he is also not among the shot people who are left on the road.