Ariel the Little Mermaid who the player selects, both characters play the same, and feature two attacks for defeating enemies, a "normal" and a "special". Side characters from the film, like Flounder and Sebastian make appearances, and can aid the player in their quest. There are a total of 5 stages, 4 regular, each featuring a boss fight at the end, with the fifth one being exclusively a final boss fight against antagonist Ursula. The Genesis version of Ariel the Little Mermaid has received mixed to negative reviews. "AllGame" gave the game a somewhat positive review, stating a young child may enjoy it, but
The Little Mermaid Jr. into seeking help from Ursula. Ariel goes to meet Ursula, who presents a deal: Ariel will be turned into a human for three days, during which she has to win the kiss of true love from Eric. If she does, she will be human permanently; if not, her soul will belong to Ursula. In exchange, Ariel must give up her voice, which will stay in Ursula's magic nautilus shell ("Poor Unfortunate Souls"). Ariel signs the agreement and sings into the shell, after which she is transformed into a human and swims up to the surface. Sebastian and Flounder bring Ariel,