- Age 6+
- 1 player
- Download 790 MB
- Arcade
- Adventure
- Platformer
Age rating content: Mild Fantasy Violence.
Languages: European and American versions: English · Japanese version: Japanese
Screenshots
About this game
The mermaid sisters need your help! Their home, the beautiful Mermaid Castle, was destroyed and its treasure stolen. So hop in, gather coins, watch out for sharks and swim through the beautiful submarine underworld!
The Ruthless Shark Gang, led by its ominous boss, Shark the Hammer, raided the Mermaid Castle. The attack left the home of the mermaid sisters in ruins. And what's worse, all their valuables were stolen! With your help, the sisters will restore their castle to its former glory and get rid of the sharks once and for all!
To do that, you will explore eight beautiful underwater locations rich in fascinating plants and wildlife. Rocky bottoms, golden sands, coral reef, ancient ruins and dark caves full of fossils - all this awaits you in your blue-water adventure!
Swim, dash and collect coins and treasure. But watch out! Cunning fish and crabs, spiky sea urchins, venomous jellyfish and other aquatic creatures will try to stop you! Dash to quickly avoid danger or collect and throw pearls at enemies. Some of them will leave coins, so grab them! Seek for friendly little fish and avoid rusty anchors or bombs. And if you see a shark... you’d better hide!
FEATURES
•Three characters. You can switch them at any time!
•Over 30 levels divided into eight captivating worlds.
•Over 10 types of enemies and obstacles.
•Easy to pick up gameplay for both younger and older players.
•The Mermaid Castle is waiting to be renovated!
Prices by country
Cheapest today: 🇯🇵 Japan, $3.72. That is 34% below the typical price across eShops today. Never cheaper since we started tracking it in October 2026.
| Country | Price |
|---|---|
| Japan No English | $3.72 |
| Chile | $4.08 |
| Brazil | $4.57 |
| New Zealand | $4.65 |
| United States | $4.99 |
| Canada | $5.04 |
| Poland | $5.12 |
| Australia | $5.25 |
| Sweden | $5.34 |
| Norway | $5.42 |
| South Africa | $5.47 |
| Colombia | $5.56 |
| Austria | $5.62 |
| Belgium | $5.62 |
| Bulgaria | $5.62 |
| Cyprus | $5.62 |
| Germany | $5.62 |
| Estonia | $5.62 |
| Spain | $5.62 |
| Finland | $5.62 |
| France | $5.62 |
| Greece | $5.62 |
| Croatia | $5.62 |
| Hungary | $5.62 |
| Ireland | $5.62 |
| Italy | $5.62 |
| Lithuania | $5.62 |
| Luxembourg | $5.62 |
| Latvia | $5.62 |
| Malta | $5.62 |
| Netherlands | $5.62 |
| Portugal | $5.62 |
| Romania | $5.62 |
| Slovenia | $5.62 |
| Slovakia | $5.62 |
| Denmark | $5.65 |
| Czechia | $5.79 |
| Peru | $5.81 |
| Mexico | $5.90 |
| United Kingdom | $6.74 |
| Switzerland | $8.58 |
Click a country to see how to buy there; new to buying abroad? Here is how it works. Prices are as each eShop lists them: VAT included where the eShop includes it, US prices before sales tax, and for Canada we add the 5% federal tax Nintendo leaves out · fetched up to 2026-11-05 14:33 UTC.
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