In Hello Kitty Island Adventure, Blue Power Crystals can be hard to locate as you have to spend time swimming underwater and managing your stamina. The Blue Power Crystals are necessary to complete the "Comic Relief" quest, one of the first big quests in the game. 

In the middle of the "Comic Relief" quest, which is unlocked after you reach Friendship Level 6 with Hangyodon, you will need to power up the Mermaidifier. It is a machine that will turn guests into mermaids and let them attend Hangyodon's show underwater.

To power up the Mermaidifier, you will need x3 Blue Power Crystals. If you're struggling to find the three Blue Power Crystals locations in Hello Kitty Island Adventure, read below to find out!

All Blue Power Crystal Locations

By the time you reach the "Comic Relief" quest, you will have already learned how to swim and dive. But if you're wondering how to, we have outlined the guide for swimming and diving in Hello Kitty Island Adventure.

However, simply diving is not enough to complete this quest as you'll need to build your stamina to dive longer. Collect Golden Apple Slices to craft and consume at least x2 Golden Apples to ease your underwater journey.

Note that you can also use the Power Crystal Censor, which you will have built during the "Power Up The Gate" quest, to assist you when tracking the locations. 

Blue Power Crystal Location #1

To find the first Blue Power Crystal location, head to the L-shaped stone bridges and dive into the Kelp Maze in between. The Blue Power Crystal can be found near two stones with a coral on top.

Blue Power Crystal Location #2

The next Blue Power Crystal location can be found near the Northern wooden dock. You'll need to dive in very deep and as you get surrounded by colorful corals, you'll stumble upon the second Blue Power Crystal!

Blue Power Crystal Location #3

The third and last Blue Power Crystal location is on the Pirate Ship, which is visible on the map. There is also a Fast Travel Mailbox near the ship, so if you have already activated it, you can directly teleport to that area.

Once there, swim towards the bottom and center of the boat and find a large opening. You will enter a puzzle room where a Blue Power Crystal is easily visible on top of a high beam. To reach there, activate the red blocks and use your balloon to float up high. 

Activate the Mermaidifier

With all three Blue Power Crystals in hand, head to the Mermaidifier and slot them in! The machine will open the door for guests to enter, the first being Keroppi, and turn them into a mermaid. Proceed to complete the "Comic Relief" quest!