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Yu-Gi-Oh! Duel Monsters II: Dark duel Stories

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Title Screen

Yu-Gi-Oh! Duel Monsters II: Dark Duel Stories

Developer: Konami Computer Entertainment Japan
Publisher: Konami
Platform: Game Boy Color
Released in JP: July 8, 1999

DebugIcon.png This game has debugging material.
SoundtestIcon.png This game has a hidden sound test.

Yu-Gi-Oh! Duel Monsters II: Dark Duel Stories is not to be confused with Yu-Gi-Oh! Dark Duel Stories, which is a different game known as Yu-Gi-Oh! Duel Monsters III: Tri-Holy God Advent in Japan.

Debug Menus

Using the Game Genie codes 082-93B-F72 072-A6B-F7E, or by changing 0x10293 to 08 and 0x102A6 to 07 in the ROM, the player can access two hidden debug menus. To access these two, the player must move the cursor below "Password".

Sound Test

Yu-Gi-Oh! DM2 Sound Test.png

Music goes from 1 to 19, while sound goes from 21 to 38. The only controls are A to play a song, and B to exit back to the menu.

Character Animation Viewer

Yu-Gi-Oh! DM2 Character Viewer.png

View all of the opponents' cutscene animations, which can be viewed by pressing A. The index only goes up to 27. Anything higher crashes the game. However, no matter who is selected, Weevil's intro dialogue is loaded.

Debug New Game

Using the Game Genie codes 00C-04B-5D4 01B-DFB-E6A, or by changing 0x10BDF to 01 and 0x10C04 to 00 in the ROM, debug features are available when starting a new game:

  • Deck Capacity is set at 9999.
  • Duelist Level is set at 255.
  • You get 200 copies of every card.
  • 9 wins against every opponent.
  • Grandpa gives a card after each duel.

Build Date

« 99 04 11 KONAMI »

This string, present at 0x10C64 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.