All God Cards: Input 735409784657 to get all the God cards.
Slifer the Sky Dragon: Input 769696675464 to get Slifer the Sky Dragon.
Get Password Machine: Acquire the Expert Cup in the Finals.
Get Wing Koriboh: Insert Yu-Gi-Oh!GX Duel Academy into the GBA Slot of the DS; next, begin Yu-Gi-Oh! Nightmare Troubadour and 3 Wing Koriboh cards can be had.
Credits and Minigame: Input the code 00003750 at the KC Card Shop.
Acquire Music Gallery: Input the code 57300000 at the KC Card Shop.
