• In episode 3, Mr. Kay uses this card during his Duel against Yuma Tsukumo. He sets this card in Defense Position. Yuma then summons "Gagaga Magician" and uses it to attack this card, causing this card to flip face-up and the attack to fail. Later, Mr. Kay overlays this card, "Crashbug Y", and "Crashbug Z" in order to Xyz Summon "Number 34: Terror-Byte". In the next episode, Mr. Kay detaches this card in order to activate the effect of "Terror-Byte" at an unspecified point. Later Mr. Kay uses the presence of this card, "Crashbug Y" and "Crashbug Z" in his Graveyard in order to activate "Bug Switch".
    • In the first above-mentioned episode, Caswell Francis uses this card during his Duel against Yuma. Aside from being on the field, this card played no part in the Duel.
  • In episode 25, this card appears in a flashback Kite Tenjo has when he notes that the tower under construction is where the third "Number" appeared.