POKEMON AND ITEM DUPLICATION
1. Choose the Pokémon and the item that you want to duplicate.
2. Equip the chosen item onto the chosen Pokémon.
3. Log onto Bill's Computer and switch boxes to any other box.
4. Save the game.
5. Now deposit the chosen Pokémon, equipped with the chosen item into the box.
6. Switch to another box.
7. Right after it says "Saving...don't turn off the power" (let the whole thing come up), turn off the game.
8. When you turn it back on, you will have the Duplicated Pokémon and Item in your lineup, and the other one in the box. You just cloned a pokemon and an item!
MAKE ANY POKEBALL A MASTERBALL:
1. Throw the ball
2. While it is in midair, hold down Up + B at the same time, then let go
3. When the ball opens real wide, press and hold A + B at the same time until the pokemon is caught.