The Mermaid Outfit is one of the many costumes in the game that you can find out in the open world in Hello Kitty Island Adventure. You can collect and wear it to get gameplay advantages.

Even with the Mermaid Outfit equipped ... of Island Adventure is by far the most useful to hang out with. Hello Kitty’s Sous Chef ability is top tier, and an early godsend.

You can display clothes in Hello Kitty Island Adventure very early-on ... such as the Scale Mermaid Tail, will become inaccessible. In order to retrieve your clothing, you just have to interact ...

If the conditions are just right, you might discover a new character paying the island a visit in Hello Kitty Island Adventure, one of them being Retsuko's friend and coworker, Fenneko.