How Do You Duplicate Items In Pokemon Crystal Version?
A glitch in Pokemon Crystal allows you to duplicate your Pokemon while placing them into the in-game PC storage. If you equip a Pokemon with an item, whatever item that Pokemon is carrying will also be duplicated. This glitch can duplicate up to five Pokemon and items at a time. Use this glitch at your own risk–improper use can corrupt your saved data. Go to a Pokecenter with a Pokemon storage PC and save your game. Give the item that you want to duplicate to a Pokemon in your party. Put that Pokemon into an empty storage box on the PC. Switch to a different box on the PC and the game will save. Turn off the game when the message “Saving the game…” appears on the screen. Turn the game back on. You should have a copy of the Pokemon and the item it was carrying in your party, and one still in the PC storage.