* DeletedScene: Though their senior citi zombie forms do not appear in the movie itself, concept art of Numbuh 83 and Numbuh 84's senior citi zombie forms can be found in the character models section of the movie's page on the KND wiki.
* KeepCirculatingTheTapes: For a long time, the movie had yet to receive a DVD release and many recordings of this movie have the ending credits muted out in favor of commercials. It finally got a proper release on Creator/HBOMax on January 2021, alongside the rest of the series.
* RefittedForSequel: [[spoiler:Numbuh 0 being Monty Uno]] was a story element that was planned to be in an episode of the show, but it was saved for the movie because it was such a big plot revelation that they couldn't fit it into an 11-minute episode or even a 22-minute special.
* WhatCouldHaveBeen: It was meant to be a big screen movie but the box office failure of ''WesternAnimation/ThePowerpuffGirlsMovie'' scrapped that, and it was relegated to a MadeForTVMovie.