- In some Video Games, this is a "Ritual Monster", with its corresponding Ritual Spell being "Curse of Millennium Shield".
- This card appears in the artwork of "Shield Crush" and "Kaminote Blow". Ironically, despite its flavor text claiming it to be able to resist any attack, it is being destroyed both times.
- The Eye of Wdjat is featured on the shield of this card.
- This card has a Rock counterpart, "Labyrinth Wall"; these monsters, along with "Neo Aqua Madoor" have the highest defense of any normal monsters.
- Though this card's flavor text claims that it is a Millennium Item, it has absolutely no importance to the storyline and does not originate from the Millennium Stone as the other Millennium Items.
- In the 41st episode of the anime this card has the orange background of an Effect Monster although no effect is mentioned. The real card is a Normal Monster.
- In both OCG and TCG, this card has been errata'd in the same way. When it was released in Legendary Collection 3: Yugi's World, its lore was updated to its second japanese one.