Yu-Gi-Oh! Season 1 Episode 21

Despite the fact that Mokuba had no physical injuries, he was unconscious and Seto was unable to revive him. A catatonic state seems typical of all who've had their souls stolen or sealed away.

The combined 900 points Joey took from the Paradox brothers should've given Black Skull Dragon 4100.

In the manga Yugi says that there are there are four possibilities about the doors the Paradox Brothers guard:

1) The left door is correct
2) The right door is correct
3) Both doors are correct
4) Neither door is correct

As a result the Paradox Brothers give Yugi's non-dueling friends 5 minutes to search for a third exit. While searching Bakura's Millennium Ring tells him that as it is a thief if Bakura puts the Ring on he can easily find the third exit.

Monster Tamer doesn't have any sort of effect, meaning that it could neither raise Dungeon Worm's attack nor allow para to control the worm for his turn.