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Yu-Gi-Oh! Duel Monsters

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Title Screen

Yu-Gi-Oh! Duel Monsters

Developer: Konami
Publisher: Konami
Platform: Game Boy
Released in JP: December 16, 1998


DebugIcon.png This game has debugging material.


Yu-Gi-Oh! Duel Monsters is the second Yu-Gi-Oh! video game.

Erase Save File

Press Down, Up, B, Down, Down, Right, Up (x4), B + Down at the title screen. A sound effect will confirm the password input. Reset your game and everything will be gone.

Disable SGB 2 Handling

Press Left, B (x3), Up, B, B, B + Right at the title screen. A sound effect will confirm the password input. The message preventing you from accessing Versus Mode on Super Game Boy 2 will disappear, and the sound effects specific to the Super Game Boy will not play anymore.

Card Password

Yu-Gi-Oh! DM1 password 1.pngYu-Gi-Oh! DM1 password 2.png

Press Up, Down, B, Down, Down, B + Up, B at the title screen. A new screen will appear, where Yami Yugi will ask you to enter a valid password. The following passwords give you cards that can only be obtained this way:

No. Password Card
351 ヘイシヨシヒサ Yaranzo
352 ハシモトカナコ Kanan the Swordmistress
353 チダタクリ Takriminos
354 キタウエカズミ Stuffed Animal
355 シモムラサトシ Megasonic Eye
358 トリシマカズヒコ Seiyaryu
359 タカハシトシマサ Three-Legged Zombies
361 ヤマダノブヒロ Flying Penguin
363 タカハシカズキ Fairy's Gift

Build Date

« 98 10 10 KONAMI »

This string, present at 0x1065C, is written to the save file upon creation. When loading a save file, the game looks for the string to determine if save data exists.