- Bile Fascination: If you were to watch one or both of these movies, you will be entranced by how bad they are.
- Strangled by the Red String: Our hero and heroine.
- Unfortunate Character Design: Mr Ice, the leader of the shark gang, has a fin placed in a... suggestive position.
- Unintentionally Sympathetic:
- The Big Bad rat, he makes the obvious point that the King of Atlantis is not someone to be trusted, his robe that covers his face for starters, is only trying to escape because he was forced into the situation in the first place and is reduced to a Cassandra Truth type of person.
- The officer in the first film tells Don Juan's friends that Smiley must be kept on a leash. After Don Juan and his comrades board the ship, Smiley goes back to pee on the officer's leg. One cannot help but feel more sympathy for the officer than Smiley since the former was just trying to do his job.
- What Do You Mean, It Wasn't Made on Drugs?: In the first movie, you have evil shark gangs and magic moonbeams. The sequel takes this Up to Eleven. There's a scene where the talking dog is riding in a seahorse-driven chariot and shooting a magical flintlock pistol at some evil sharks. It's either the most awesome thing ever made, or the crackiest thing this side of Katamari Damacy.
- Alternate Character Interpretation: Is the narrator telling the real story of the Titanic? Is he blatantly lying to his grandkids? Or is he just a senile old man who was rambling the whole time? The words of his wife at the end lend credence to the latter two.
"Your grandfather loves to tell stories, but like all sailors, you shouldn't take it too seriously."
- Counterpart Comparison: Maltravers, as a power hungry, arrogant and ambitious man with a mustache, slicked back hair and an eyepatch and wants to kill an entire group of beings that he doesn't approve of, bares a very strong resemblance to Fuhrer King Bradley, just without the coolness.
- Critical Research Failure: Even more so than that other Titanic cartoon.
- Crowning Music of Awesome: The closing credits song, 'Ocean Dreams' (or 'Ocean of Dreams') sung by Cynthia Z.
- Ho Yay: The two young male mice, Connors and Ronnie, are quite touchy-feely throughout the film. Makes more sense than when Connors ended up with Stella, who he only shared a few lines with.
- Squick: Don Juan grabbing Elizabeth's glove from the air and then sniffing it.
- The dog urinating on the first officer's leg before boarding.
- Angst? What Angst?: Our heroes seem to care very little about the fact that they're stuck in Atlantis forever, even though on the surface Don Juan has his gypsy brothers, Elizabeth has her father, Connors has a wife, and Ronnie has a sister and family.
- Designated Hero: Taken to the extreme with Re. He is depicted as the Big Good. However, he looks and acts like a Big Bad.
- Fridge Horror:
- Where did Razor-Teeth get that captain's uniform he wears?
- Living in Atlantis had unintentionally turned into a terrible place to live. The fact that you're never allowed to leave and forced to drink an elixir that gives you eternal life. Your only way of contact of the outside world was a magic mirror that would allow you to see your loved ones grow old and die.
- "Funny Aneurysm" Moment: "This liquid looks pretty! Let's drink it.". The said liquid is colored green. In these days, one of the more well-known drug detectors will turn the drink green when it discovers a date rape drug.
- Narm: Oddy's attempt at a threat.
If something bad happens to my friends, I'll rip every tooth out of that shark and I'll make them into the most beautiful necklace you've ever seen!
"Yo yo yo! Look at my teeth!"
- Mr. Ice's rap.
- Nightmare Fuel:
- The scene at the end, when the escaped rats are all seen in an insane asylum. Especially the nurse giggling madly while the doctor talks about how there's no hope of them recovering and makes a horrifying face. The protagonists all laugh when they see this.
- And the Big Bad rat, who's the only sane one (and who did nothing wrong) is also condemned to stay there.
- The Scrappy: Pingo has that reputation.
- Sequelitis: Even though the first movie was one of the worst adaptations of the Titanic sinking, this movie was even worse than its predecessor.
- Suspiciously Similar Song: The melody of the song that Pingo sings in Atlantis is vaguely similar to the melody of Northern Irish band Divine Comedy's cover of Noel Coward's "Marvelous Party".
- Unintentionally Unsympathetic: The King of Atlantis is a good example. He's intended to be a good guy, yet he does not allow Elizabeth, Don Juan, or the others to return to the surface, makes them immortal without telling them, and forces them to live in Atlantis forever.