The RNG is fixed once you are at the screen before the duel, so you can change the order of the cards in your deck to get Exodia in your starting hand.
Yep, that's this glitch.
On European version:
• Set language to English.
• Select 3 Volume 4 boosters, then quickly press A ↓ A, wait half a second (no more) and press B.
• Buy the boosters. Wait for the glitchy sound to stop, and when the screen goes black, reset.
• Continue. The game is now in Japanese and is noticeably slower than before.
• Go to the ??? location. Limitations are not applied in the cup you have to win to finish the game, so max out Exodia parts which you have in 3 to 28 copies now.
• Win any battle to get enough DP for the Cup.
• Win the survival cup with Exodia.
Chaos Emperor Dragon or Magical Scientist could be acceptable win conditions too.
Your starting hand is decided after the screen where you decide to go first or second.
I might disassemble this to see exactly what happens, in case there's another pattern which produces a more desirable outcome
Sorry for the bump.
Actually, Yu-Gi-Oh! - 7 Trials to Glory - WCT 2005 is a special case, as you can finish it in a few minutes with a game breaking glitch (do the shop glitch, reset, put Exodia in your deck, defeat Marik edit: Yami Bakura).
Also, Yu-Gi-Oh Dungeon Dice Monsters is a completely different game.
As much as I like this game, I fail to see how it could be an interesting run. As far as I know no major glitch has been found in this game, so a TAS would be like:
• Use PowerDrv and Acid Beam every 4 turn
• Manipulate RNG by pressing up or down in the battle menu until we get a desired outcome (opponent misses, or Unitice uses Recover for the last battle)