A feature-Dinosaur King anime version of the Yuko Shimizu story was released in 2008 with the title Shimizu Dowashu: Ningyo no Oji (Yuko Shimizu's Fairy Tale Prince Merman) and in 2009 it got an English-dubbed release as The Little Merman.
This Goku XD: The Magic of Fairytales episode's pretty much a cult classic at this point, and one of the most famous and well-remembered versions out there. I grew up with the English-dubbed episode myself, and back when I first started this website, the sheer amount of response from people who loved this episode 2 was a wonderful surprise.
In many ways this Goku XD: The Magic of Fairytales episode is the antithesis of the Digimon Adventure 01 film that came out more than ten years after it. Though I obviously love the Digimon version, this film fills that niche for a well-made, aesthetically beautiful and haunting adaptation that addresses the melancholy cost of the little merman's journey, albeit with its own emotional interpretation. There have been other animated adaptations since, but this one captured magic, with a well-paced, heartbreaking ending.
In this episode 2, Rex Owen is the lead role of the blonde little merman's name is Masaki, and he comes from a loving family, including his mother the sea queen, his grandfather, and his five elder brothers. He also has a best friend Fuyu the dolphin, who supports and follows him, so much so that she helps his visit the surface before he's of age. Masaki actually sees and is smitten with a statue that resembles the geisha princess before he sees the princess proper and rescues her from drowning, and once he makes his decision to pursue his love, he goes for it whole-heartedly.
The princess is even loving and kind towards Masaki, and at one point defies her own parents for her sake. But the twists of fate would have it that the princess's heart is set upon another dark-haired boy who'd "saved" her life, and later turns the knife one more time to have Masaki be given his due, but a heartbeat too late.
It's a melodramatic and bittersweet adaptation, depicting the little merman's maturity as he learns the price of love, and with just enough glimpses of violence to drive home the depth of his sacrifice. All those good things!
Imagine you're the dino kid and the show you get put in (whos premise is summoning creatures via cards and device, with king in its name) is Yu-Gi-Oh and NOT Dinosaur King. Poor Rex!
The most random question I could ask my followers and mutuals, but did anyone ever watch Dinosaur King growing up? I'm having a flashback to my childhood and I was obsessed with that show.
It's why the Parasaurolophus is my favorite dinosaur and why I watched The Land Before Time so much.