Crystal Beast Ruby Carbuncle, known as Gem Beast Ruby Carbuncle in the Japanese version and often shortened to Ruby in the anime, is a character version of the card, "Crystal Beast Ruby Carbuncle".
Ruby is the Spirit Partner of Jesse Anderson.
Reverse of Arcadia
Crystal Beast Ruby Carbuncle appears an unlockable opponent in the video game Yu-Gi-Oh! 5D's World Championship 2010: Reverse of Arcadia.
Crystal Beast Ruby Carbuncle and Earthbound Immortal Wiraqocha Rasca can be unlocked as Tag Duel opponents by summoning "Rainbow Dragon" in a Duel. Their Tag Team name is Earthbound Crystal.
In Yu-Gi-Oh! 5D's World Championship 2010: Reverse of Arcadia, Ruby Carbuncle uses a "Crystal Beast" Deck, titled "Duel Crystals".