- Author's Saving Throw: Susie was left out of the adventures of the previous two movies. Here she finally gets to be part of the main cast.
- Awesome Music: The Big Bad Cat's an Act.
- Ear Worm: "If you don't want to end up being mutant lobster food/Then keep your island princess in a really happy mood..."
- Ensemble Dark Horse: Spike is one of the most memorable characters in the movie, given he is finally heard speaking (thanks to Eliza) as well as his protectiveness of the babies.
- Harsher in Hindsight: This film boasted a brand-new feature animation logo for Klasky-Csupo. It was the only time it would be used (save for the Direct-to-Video movie made from the completed episodes of their never-aired series Immigrants).
- Just Here for Godzilla: How many people saw this movie just to hear Spike speak?
- Memetic Badass: Nigel Thornberry is an in-universe example, to the babies.
- Sequelitis: This movie was a box-office disappointment and also partially responsible for the end of Klasky-Csupo.
- Squick: Spike urinating on Suri's tail, albeit unknowingly.
- Tear Jerker:
- The scene in which Nigel sings to the babies as they're trapped underwater, choosing to Face Death with Dignity and keep their spirits up to the best of his ability, being certain they wouldn't make it.
- Spike rushing to retrieve the raft so they can patch the Comvee's pontoon with it and save "his" babies, despite Eliza telling him that it's too dangerous.Eliza: Spike, no! The waves are too big!
Spike: Don't worry Eliza! I've paddled my way to more tennis balls than I can count! (gets hit by a wave) I-If I could count...
Eliza: But I'm afraid you won't make it!
Spike: Sure I will! And if I don't, they won't say old Down Spike didn't try his best!
- Vindicated by History: Originally ripe for Snark Bait, opinions of the film have softened over the years thanks to nostalgic fans of Klasky-Csupo. It's now generally agreed that, while the film isn't great, there's enough to at least please the fans and can be seen as a decent sendoff to the studio's partnership with Nickelodeon.
- WTH, Casting Agency?: The only reasonable thing that can be said of Bruce Willis voicing Spike.
YMMV / Rugrats Go Wild!