Duplication
Go to the Pokemon Center. Go to the PC. Go down to Deposit Pokemon. Deposit the Pokemon that you want to duplicate. While it says "SAVING... DON'T TURN OFF THE POWER", turn off the power. Then, turn your GameBoy on again and you will have one of the Pokemon in your Party Pokemon, and you will have one in one of your PC Boxes.
Head back to our Pokemon Crystal cheats page for a load more cheats and tips for Pokemon Crystal.
Comments for this hint