Power Crystals
Power Crystals are magical objects found all around Friendship Island. Power Crystals are used to unlock or complete important storyline quests. There are a total of 15 Power Crystals, three of each color. Each color has a corresponding Power Crystal Decoration.
It is revealed to the player that the Power Crystals possess the memories of 
TOPHAT, a friendly supercomputer, which will help him piece together the mystery disappearance of his adventurous best friend.
Yellow Power Crystals
Yellow Power Crystals are used while completing the "Power Up the Gate" quest and are used to unlock the Resort Gate.
Green Power Crystals
Green Power Crystals are used while completing the "Re-Haunt the Spooky Swamp" quest to bring the attractions, such as the Haunted Mansion and Ghost Tour Ride, in 
Spooky Swamp back to their former glory.
Blue Power Crystals
Blue Power Crystals are used while completing the "Comic Relief" quest to activate the 
Mermaidifier so that the Island Residents can visit 
Rainbow Reef.
Purple Power Crystals
Purple Power Crystals are used while completing the "Bring Back the Swing" quest to revitalize the Dance Hall in 
Gemstone Mountain by bringing the animatronics back to life.
Red Power Crystals
Red Power Crystals are used while completing the "Enraging Ruins" quest to unlock the Red Hot Ruins to search for 
Retsuko's belongings. One cannot be found until after the quest has begun.