[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/barbie_in_a_mermaid_tale_2_qu.png]]
[[caption-width-right:350:"It feels good to be part of something bigger than yourself."]]

''Barbie in a Mermaid Tale 2'' is the sequel to ''WesternAnimation/BarbieInAMermaidTale''. It was released in 2012. In the Franchise/{{Barbie}} filmography, it is preceded by ''WesternAnimation/BarbieAPerfectChristmas'' and followed by ''WesternAnimation/BarbieAsThePrincessAndThePopstar''.

Merliah heads to Australia for the ultimate surfing competition. She finds a rival in Kylie Morgan, the second-best surfer around, and must choose whether to stay and surf or accept her responsibilities as a princess, spinning Merillia to keep the ocean alive.

When the evil mermaid Eris escapes from her whirlpool with the unwitting help of Kylie, Merliah must stop her before Eris takes Calissa's throne and gains Merillia-spinning powers herself--but with Eris possessing the power to make nightmares real, it'll be harder than before!

----
!!This movie contains examples of:
* TheAce: Merliah, and her rival, Kylie, are both champion surfers and the best on their respective teams.
* AlwaysSomeoneBetter: Merliah is better than Kylie, which sparks the plot due to the latter's jealousy. Even when Kylie cheats and wins their first meet, Merliah gets all the attention.
* AmazonBrigade: The Ambassadors are a team of girls.
* AsYouKnow: An Oceana news report explains the events of the first movie.
* BigBad: Eris, who returns from the first movie.
* BrickJoke: The lead Stargazer vows revenge on Eris despite his shrunken state, and returns at a critical moment to bite her nose.
* ChuckCunninghamSyndrome: Kayla and Xylie are nowhere to be found in the sequel.
* CloudCuckoolander: Hadley is very spacey, often makes out-there comments, and thinks a disgusting-tasting gumbo is delicious.
* DarkerAndEdgier: Despite Eris being deposed in the previous movie, the scenes of the characters' worst nightmares are pretty intense, and it has Merliah in the position of possibly losing her legs forever. There's also two scenes where Kylie almost drowns.
* TheDragon: Alistair is one to Eris; he helps free her from her whirlpool prison by tricking Kylie.
* EquivalentExchange: For someone trapped in Eris' whirlpool to escape, someone else must enter it.
* ForcedTransformation: [[spoiler:Eris gains legs, which, to her, is the worst thing that could happen to her]].
* FriendlyRival: Kylie becomes more friendly to Merliah.
* HeroicSacrifice: Kylie throwing Merliah her necklace while underwater, knowing she'll drown if she does but that Merliah needs it to become a mermaid.
* TheHighQueen: Queen Calissa is the beautiful, strong-willed queen of Oceana.
* KickTheDog: Eris does it by tricking Kylie into freeing her, imprisoning her in her place, and forcing everyone to live their worst nightmares.
* LameRhymeDodge: This exchange as Alistair insults Eris behind her back.
-->'''Alistair''': "And then I'll have the power to make Merillia and the ocean will be mine! Hahahah!" Ptuh! Not that you could've done any of it without my help.\\
'''Eris''': WHAT DID YOU SAY?!\\
'''Alistair''': Uh... erm... Kelp! I can't do anything without my kelp. (''shoves a finful kelp into his mouth'')\\
'''Eris''': Wise choice. Stick with that.
* TheLifestream: Merillia is the ocean's life force, which only the royal family can spin. In this movie, Merliah learns how to spin it.
* MarriedToTheJob: Merliah is married to her hobby, surfing. This causes conflict when she chooses going to Australia's surfing competition over seeing her mother and accepting her princess responsibilities.
* MultinationalTeam: The Ambassadors seem to [[NationsAsPeople represent different countries.:]]
** Selena represents Russia/Eastern Europe.
** Mirabella represents Brazil/South America.
** Katrin represents South Korea.
** Renata represents Africa.
** In the dolls, Kylie is the Ambassador representing Australia, even though she is not one in the movie.
* OnlySaneMan: Fallon, who's more down-to-earth than the spacey Hadley.
* OrcusOnHisThrone: Eris is this in the final battle because leaving the throne means she wouldn't gain the power of Merillia.
* PrimalFear: Eris' nightmare powers prey on these, as they often involve deep-set fears like being in a confined space, turning ugly, or becoming terrified of ''everything''.
** Kylie absentmindedly takes off Merliah's necklace and almost drowns at one point.
* TheRival: Kylie is Merliah's surfing rival.
* SadisticChoice: Merliah must choose whether to lose her legs and stop Eris or keep them and let Eris take over again.
* SceneryPorn: The Australian coast is beautiful, as are the underwater scenes.
* SecondPlaceIsForLosers: Kylie and Merliah believe this at first.
* SecondPlaceIsForWinners: Merliah comes to believe this, realizing not everything has to be a competition. She proves this by [[spoiler:not being upset when Kylie wins]].
* ServileSnarker: Alistair mocks Eris by saying that if it weren't for him, she'd have never been freed, and he often makes fun of her behind her back while dutifully serving her.
* ShockAndAwe: The Stargazers, who are a pack of electric eels.
* SilkHidingSteel: Queen Calissa, who doesn't like to fight, but will to protect the ocean.
* ThisIsReality: Kylie protests to Alistair, a talking fish, that she doesn't believe in magic necklaces. He {{lampshades}} this and she concedes.
* TookALevelInBadass: Eris, who can still create whirlpools and can now cause people to live their worst nightmares. She demonstrates this power by using it on a pack of huge, scary eels.
* UnwittingInstigatorOfDoom: Georgie Majors when she tells Merliah to take off her necklace, and Hadley when she unknowingly lets Kylie steal it.
* WhatDoTheyFearEpisode: This happens when Eris forces everyone to live their worst nightmares.
----
->''It feels good to be a part of something bigger than yourself.''
-->-- '''Barbie'''