Card Appearances:The Wicked Worm Beast
- This card was first used in the DEATH-T Duel of the manga and Toei anime. Kaiba used it to attack Yugi's Winged Dragon, Guardian of the Fortress #1. However, the effect of the Winged Dragon activated successfully, and the Worm Beast was destroyed (there was no Battle Damage to either player as both monster had the same ATK).
- In episode 19, this card is shown when the Paradox Brothers explain how a Labyrinth Duel works. This monster was silhouetted off when it was shown during the explanation as Penguin Knight runs into it.
- In episode 108, this card is seen in Seto Kaiba's hand during his duel against Leichter. Kaiba then sets this card in Defense Position. In the next episode, Leichter's "Satellite Cannon" (whose ATK was 1000 due to its own effect) attacks and destroys this card.
- The attack of this monster is named Poison-Sol 「ポイズン・ゾール」, a portmanteau of "poison" and "aerosol".