Ariel Underwater Sleepover is one the best dress up games you can play free online. But, if you prefer more games for girls, give our other dress up games a try.Are you up for an underwater sleepover party? The mermaid princess has invited her friends for a sleepover in her underwater kingdom. Her special potion will help her friends grow tails and breathe underwater. All it's left to do is to style up each of them for the party! Different colored and shaped tails, matching tops and lovely accessories are what they need to look amazing in their underwater selfies!