Exodia Easy
When you start a new game pick the black pack(Yugi's Deck)and when you get on to the mapscreen(where you can pick your battles).
Hit R on your GBA and an icon should say Deck&Trunk look in there and check your main deck and if you don't have all 5 pieces of Exodia just do It until you have him.
Note: It worked for me!!!
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