A long time ago, there was a young mermaid named Buttercup. She was beautiful and had a lovely singing voice. However, she wasn't like other mertoons; she was in love with land-life. One day, she confronts Chrystalis the sea witch, who, in exchange for Buttercup's voice, turns Buttercup into a human. Another tie in: the prince she wants to be with has to kiss her by the sunset of the third day, otherwise she turns back into a mermaid and is Chrystalis's slave. When she turns human, she meets Prince Butch, a kind, handsome young man, and they instantly fall in love. However, she is later betrayed by Chrystalis, who turns herself into a beautiful girl using Buttercup's voice. She now has to stop Butch and Chrystalis's wedding before the third sunset. Will she be able to remain human? Well......if you already know the story, you get it.
- Buttercup (PPG) as Ariel
- Butch (PPG) as Prince Eric
- Kick (Kick Buttowski) as Sebastian
- Numbuh 2 (KND) as Flounder
- Fanboy (Fanboy and Chum Chum) as Scuttle
- Yo (Yin Yang Yo!) as King Triton
- Queen Chrystalis (MLP) as Ursala