Dragons are a ferocious race of creatures. They come in many different colors and varieties. Magical in nature, their colors sometimes correlate to the type of magic they wield.
Some Dragons are revered as gods, and others as terrible monsters. Most however are quite respected.
Worlds known to have various forms of Dragons are:
Interworld System of Planets
.hack
Digimon
Final Fantasy Universe
Heaven
Hell
Pokemon
Dark Cloud
Dragon Quest
Dragon Ball
Duel Masters
InuYasha
Kingdom Hearts
La Pucelle
Land of Immortals
Magic
Monster Rancher
Naruto
Ninjago
Oblivion
Phantasy Star
Pantom Brave
Purgatory
Shadowverse
Skylanders
Spectrobes
Star Ocean
Suikoden
Tactics Ogre
Yo-kai Watch
Yu-Gi-Oh
Growlancer