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- Yami Yugi and Joey Wheeler appear in this card's artwork.
- "Yu-Jo" and "YU-JYO", from the card's English and Japanese names, come from different romanizations of the first kanji of the Japanese names for Yugi and Joey, Yūgi (遊戯) and Jōnouchi, (城之内), which together form yūjō (友情), the Japanese word for "friendship".
- This was the first card to require physical interaction between players.
- Several years later, "Transmission Gear" was released, becoming the second.
- Because of the requirement of physical interaction, this card is banned in Remote Duels.