Water Dragon is a character version of the card, "Water Dragon". Water Dragon appears in the video games, Yu-Gi-Oh! Ultimate Masters: World Championship 2006 and Yu-Gi-Oh! World Championship 2008. In World Championship 2008, it can be unlocked if the player has beaten Kairyu-Shin five times. If the player has unlock this character, the player can unlock it as a tag partner by beating it ten times.