Card Trivia:Twin-Headed Thunder Dragon
- In Yu-Gi-Oh! The Falsebound Kingdom, this card's Fusion Material are "Two-Headed King Rex" and "Thunder Dragon", possibly due to the inability to use two of the same monster.
- This card is a Dragon-Type monster in the Yu-Gi-Oh! anime, as it was shown being used alongside Seto Kaiba's "Dragon's Rage".
- This monster does not actually have two heads, but its hologram does in the anime, and said hologram also includes wings not present on the card.