Hitomi98

Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist Action Replay & Game Genie Codes:

YGO DM4 Codes

	Solomon Muto (Extra Card per Win) - 17232574
	Peacock Mai - 71837829
	Bandit Keith - 45442120
	Yami Yugi - 18054115
	Yami Bakura - 82659417
	Yami Marik - 45565702

Hitomi98

Yu-Gi-Oh! Dark Duel Stories (Yu-Gi-Oh! Duel Monsters III: Tri-Holy God Advent)  Action Replay & Game Genie Codes:

[[[ http://gamehacking.org/vb/threads/10534-GBC-Yu-Gi-Oh!-Dark-Duel-Stories-%28USA%29-Debug-New-Game ]]]

GBC - Yu-Gi-Oh! Dark Duel Stories (USA) - Debug New Game

Enter the following Game Genie codes, then start a New Game.

Yu-Gi-Oh! Dark Duel Stories (Yu-Gi-Oh! Duel Monsters III: Tri-Holy God Advent)  Action Replay & Game Genie Codes:

Hitomi98

Yu-Gi-Oh! Duel Monsters (Yu-Gi-Oh! Duel Monsters II: Dark duel Stories) Action Replay & Game Genie Codes:

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