Barbie: Mermaid Power is a movie that just does everything a good movie should do. For starters, the music is top notch. The Math Club continues making top notch music and songs, just like in projects such as Barbie: Dolphin Magic, Barbie: Dreamhouse Adventures, and Barbie: Princess Adventure. Matthew Tishler & Andrew Underberg help contribute greatly to the songs, giving it a modern flare. The characters are all top notch. Malibu Barbie is shown to be pretty mature and down to earth, knowing that doing the right thing is the bigger priority, and she only feels down on herself when she thinks she can't contribute. Her embracing of imagination without it clouding her judgment is a plus in my book. Brooklyn Barbie is also a good fit to the group dynamic, being more of the realist, but still trying to give things a chance. Seeing her loosen her standards on what's real is well done. She learns things quicker, yet still focuses more on doing the right thing. Barbie's sisters do well playing supporting roles, notably Skipper being able to connect to Finn and Chelsea connecting to Aquaryah. The returning characters, Isla and Marlo, also play their roles well, with Isla being supportive of what humans can do without sacrificing her mermaid side, and Marlo being surprisingly sympathetic despite how cruel she acts. The new characters in the movie are also great, whether it's Aquaryah being plucky and open minded towards humans, but still a bit stubborn, or her brother Finn being overprotective and stubborn but still caring. Talleigha makes for quite the intimidating antagonist, being deeply rooted in her species's racism against humans. Her smug behavior makes her entertaining. The messages are also great, which is about being able to show support for others and trying to find your inner power. I call this amazing.
