Goof: In the beginning of Toy Palace, the model train has a diesel locomotive horn. All other times in the episode, it has a steam whistle.
Goof: When Tommy first spots Angelica, he turns towards Grandpa who's glasses (with little sun glass lenses attached) flip up real quick.
Toy Thorg: Thorg hungry! Thorg want eat!
Toy Reptar: Halt! I am Reptar!
(Pitch for a time machine called the "Wee Willie Warp Time Traveler", as displayed on a sign above it)
The Pitch: Sick of parents pushing you around? Why not send them into the past!
Chazz: Do you think time travel is safe?
Stu: Of course it is, as long as they don't disturb the past.
Phil: (As the ship is sinking) I think we're gonna be drownded!
Lil: I think we're gonna be captured!
Chuckie: (Moaning) I think I'm gonna be sick.
Beginning with this episode, the series is now animated in Korea by Anivision, a subsidiary of Sunwoo Entertainment. (Another Sunwoo subsidiary, Grimsaem, animated the first two theatrical films.) In 2000, Anivision and Grimsaem were folded into Sunwoo, but the comapny continued doing the animation for the Rugrats until the series end. As a result, characters like Tommy, Chuckie, Stu, Chaz, Phil, Lil, Angelica, Grandpa Lou and Didi have refined character designs that mostly stay the same for the series run, compared to the previous season being animated in Taiwan by Wang Film Productions.
A new composer joins Mark Mothersbaugh in providing background music: Denis M. Hannigan, and the background music changes a bit. The voice acting is also more improved.
This is the first time Chaz is in the actual clothes.
Starting with this episode, Tommy has been redesigned a bit, so he looks like his modern self, though on occasion it briefly switches back to Tommy's older design throughout the episode. Chuckie's design has been refined as well so he looks more like his current self.
Dr. Who fans please note: in one scene before Chuckie got on the train, please look behind him on the bottom shelf; there you'll find small, toy Daleks. The Daleks were created for Dr. Who in 1963 by Terry Nation, who later went on to create and write the late-1970's BBC sci-fi series, Blake's 7. Mr. Nation died at age 66 in March 9, 1997 in Los Angeles.
The name "Wee Willie Warp" is a reference to the nursery rhyme "Wee Willie Winkie," about a guy who runs around residential areas late at night.