Barbie Fairy Vs Mermaid Vs Princess

Same girl, three costumes, built one after another instead of picked from a menu.

Barbie needs an outfit for a masked ball and cannot decide, so the game has you dress her as a fairy, then as a mermaid, then as a princess, and choose at the end. That sequence is what separates it from the other versus games here. You are not comparing three characters, you are comparing three versions of one, which makes the difference about silhouette rather than casting.

Fairy means wings and something short. Mermaid means a fitted line from hip to floor. Princess means volume. Three very different shapes on one body, which is a clearer lesson than it sounds.