Prismatic Melodies

The Prismatic Melody is a fan-name given to a family of heartless that specializes in magic, and which names follow the pattern of "color + type of music".

Game Fire Blizzard Thunder Cure Aero Light Water Time Illusion Flower Space Other
Kingdom Hearts I  
Red Nocturne
 
Blue Rhapsody
 
Yellow Opera
 
Green Requiem
 
Black Ballade
Kingdom Hearts II  
Crimson Jazz
 
Emerald Blues
 
Silver Rock
358/2 Days  
Scarlet Tango
 
Turquoise March
 
Striped Aria
 
Sapphire Elegy
 
Pink Concerto
 
Grey Caprice
 
Emerald Serenade
Kingdom Hearts χ  
Amber Opera
 
Emerald Sonata
 
Violet Waltz
Kingdom Hearts III  
Vermilion Samba
 
Gold Beat
 
Malachite Bolero
 
Marine Rumba

The funny cousins from Union X:

 
Wicked Watermelon
 
Large Watermelon
 
Huge Watermelon
 
Festive Fireworks
 
Large Fireworks
 
Huge Fireworks
 
Jack O' Lantern
 
Round Rice Cake
 
Large Rice Cake
 
Bitter Macaron
 
Mighty Macaron
 
Swaying Spook
 
Wandering Spook

Keyblade evolution

Lists the different keyblade from returning worlds.

World Kingdom Hearts I Kingdom Hearts II Birth by Sleep Dream Drop Distance Kingdom Hearts III
Olympus  
Olympia
 
Hero's Crest
 
Mark of a Hero
 
Hero's Origin
Agrabah  
Three Wishes
 
Wishing Lamp
Monstro  
Wishing Star
   
Ferris Gear | Ocean's Rage
Atlantica  
Crabclaw
 
Mysterious Abyss
Halloween Town  
Pumpkinhead
 
Decisive Pumpkin
Neverland  
Fairy Harp
 
Pixie Petal
Beast's Castle  
Divine Rose
 
Rumbling Rose
Port Royal  
Follow the Wind
 
Wheel of Fate
Space Paranoids  
Photon Debugger
 
Dual Disc
100 Acre Wood  
Sweet Memories
 
Hunny Spout
Leon  
Lionheart
 
Sleeping Lion
Sephiroth  
One-Winged Angel
 
Fenrir
Axel  
Bond of Flame
 
Frolic Flame
 
Bond of the Blaze
Ultima Weapon