Changes
counterpart trivia, minor changes
* The [[B. Skull Dragon (Bandai)|Bandai]] version of this card is [[Level]] 7 and has 2600 [[DEF]], whereas the Konami version is Level 9 and has 2500 DEF.
* The "B." in its this card's English name stands for "Black", in the same way as "[[Red-Eyes B. Dragon]]".
* "[[Red Dragon Archfiend]]" ("Red Demon's Dragon") bears a Japanese name similar to "B. Skull Dragon" (Black Demon's Dragon). Both cards are demonic dragons that are summoned from the Extra Deck. * This monster has an upgraded counterpart in "[[Black Dragon Archfiend]]", which explicitly references this card's original name in its own (its Japanese name is "Fiend Dragon – Black Demon’s Dragon"). The monsters have the same Level, ATK, DEF, Type, and Attribute and can even be summoned using the same [[Fusion Material Monster]]s. However, "Black Dragon Archfiend" can be summoned with ANY "Red-Eyes" normal monster + ANY Level 6 "Archfiend" normal monster, and has [[Monster effect]]s.
* The [[Fusion Summon]] of this card is shown on the artwork of "[[Polymerization]]".
* This card's [[ATK]] is the sum of "[[Summoned Skull]]'s" and "[[Red-Eyes B. Dragon|Red-Eyes Black Dragon]]'s" DEF, while its DEF is equal to "Summoned Skull's" ATK.
* This card has is tied with "Black Dragon Archfiend" for the second-highest ATK of all "Red-Eyes" monsters, with "[[Meteor B. Dragon]]" having the highest.
* This card's naming moniker is shared with "[[Fiend Skull Dragon]]". Both cards are also [[Fusion Monster]]s whose [[Fusion Material Monster]]s entail a [[Dragon]]-[[Type]] monster and a [[Fiend]]-Type monster.
