Elsa is a centaur here, which is the joke the whole set is built on.
The four swaps are deliberate: Elsa becomes a centaur, Anna an elf, Merida a mermaid and Ariel a fairy, so the actual mermaid of the group ends up with wings. Each girl gets makeup as a separate layer before the clothes, and the makeup is where the creature really reads. A centaur in ordinary eyeshadow just looks like a princess standing behind a horse.
Egirlgames, free in a browser, and it works on a phone. Nothing is saved, so screenshot each of the four before you move on to the next.
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Hogwarts Princesses Developer
Princesses Become Magical Creatures is made in house, and this is its home. It is not licensed from anyone else.
Frequently asked questions
Which princess becomes what?
Elsa turns centaur, Anna elf, Merida mermaid and Ariel fairy, so the sisters are split up and the little mermaid is the one with wings.
Is there makeup as well as clothes?
Yes, makeup is its own stage for each of the four, and the game is free in the browser with nothing to download.