Rainbow Mermaid is a Dress Up game on PFreeGames.com. You can play Rainbow Mermaid in your browser for free. It was very fantastic that the boy could not take his eyes from the beautiful rainbow mermaid. Lilly is a beautiful mermaid underwater. She is falling love with a handsome boy. She will date him today. Can you dress up her? Check her tails, bras and hairstyles. Make sure she looks stunning! Have fun!