Whats the code 4 gate gardian, and how do you get Duke Devilin?

The code for Gate Guardian is 25833572. However, to play it, you have to sacrifice three other monsters, which don't have passwords, and you can only get them by beating the Limited Tournaments. Get Duke Devlin by beating everyone 5 times, including Pegasus.

Sorry, I need to correct myself. There is no code for the Gate Guardian, or any of it's pieces.

To get Gate Guardian and it's pieces, just beat all the Limited Tournaments, and you'll find them all in the Effect Monsters Section of the Trunk. You can't get them in any booster packs.

OK, here's some step-by-step instructions to the real way of getting Duke Devlin.

1: Beat every normal duelist 5 times more than you have lost to them.

The normal duelists are the ones that are already on the game when you get it, menaing you don't have to do anything to get these people. Bandit Keith will then appear on your game. Defeat him.

2: Lose 5 duels in a row. Mokuba Kaiba will appear in your game. Defeat him.

He is easy to beat, because he doesn't know how to duel properly yet. He only evr plays monsters in attack mode, never puts them face down, and his strongest monster is Kanan the Swordmistress (1400/1400).

He has no Magic or Trap cards, except for Heavy Storm, which destroys all Magic and Trap Cards on the field. Your only worry is that he may play his Cyber-Stein, activate it's effect, and summon the Blue-Eyes Ultimate Dragon.

3: Keep duelling until you have 10,000 points. You can check how many points you have by pressing R1 and looking down the bottom.

Once you have done this, the Blue-Eyes Toon Dragon pack will appear. Keep opening that when you win until you get a Toon World card. Or just get it with the password, which is 15259703.

After you've done that, you will get Maximillion Pegasus. Defeat him.

4: Once you've done all this, you've got Duke. Because he runs Dungeon Dice Monsters he uses dice cards like Skull Dice, Graceful Dice, and Blind Destruction.

Most of his monsters are ones that can bring forth others of the same name to the field once you defeat it.

Hope this helps.