The following is a
post on how to clone Pokemon from GFAQ's Pokemon Emerald board:
1. Deposit the pokemon you want to duplicate in a box at any PC, and any box (up to five).
2. Save.
3. Take out the pokemon you want to duplicate from the box.
4. Go to the Battle Tower and talk to the lady on the far right, the one who hosts the Wireless battles.
5. Challenge the event and pick two eligible pokemon. It does not matter which event it is, as long as you have eligible pokemon.
6. The lady will ask if you want to enter those two pokemon. Select yes, and a two-second pause will occur.
7. When it asks if you want to save, say no and reset.
The post also contained a
slide show if you don't understand the text. This glitch only works in Emerald version.
There is also a trick I read about on
SPPF for copying items fast:
1. Go to the PC and, using the "Move Items" option, equip some items to Pokemon in the Boxes. (WARNING: if the pokemon already had an item it will be lost)
2. Exit the PC and Save.
3. Enter the PC and retrieve the Items using the "Move Items" option again.
4. Go to the Battle Tower and talk to the lady on the far right, the one who hosts the Wireless battles.
5. Challenge the event and pick two eligible pokemon. It does not matter which event it is, as long as you have eligible pokemon.
6. The lady will ask if you want to enter those two pokemon. Select yes, and a two-second pause will occur.
7. When it asks if you want to save, say no and reset.
8. Upon loading the saved game you will have all those items in the Bag AND in the Pokemon in the Boxes.
I modified greatfire's original instructions to make them easier to understand.
WARNING: If you soft reset/turn of the power during the two-second pause it may ERASE your save file. So use with CAUTION!
~Strike!
WARNING: If you save the game, and move / deposit a monster from your party to your PC (instead of withdrawing it from your PC), and then continue the trick as normal, the monster DELETES itself. Please exercise caution when attempting this trick, and don't confuse depositing with withdrawing. Make sure the monster that you are cloning is in the PC before you save the first time, and then, after withdrawing the monster, do not do anything else with the PC until the trick is over.
~DocRobot_K-176