Yu-Gi-Oh World Championship Tournament 2004 Game Boy Adv Cheat Codes

All Cards

• Beat every duelist 20 times, then at the title screen press L, R, Select, A, B, Left, Right, Up, Down, Start
  All Cards

View the staff credits again.

To do this, you must have already viewed the staff credits at least once. To view the credits again, input the old famous Konami code by pressing Up, Up, Down, Down, Left, Right, Left, Right, B, A at the selection menu.