i have a trick for the games pokemon gold/silver
go to a poke center deposit the pokemon u wanna clon in the box, change the box
when saving, when it says saving... turn off the power
when u continue the game you have the pokemon you stored in your party and in the box, this trick can also be used to clon things like.......THE MASTER BALL!!!!
this trick doestn work if u dont turn off the power when it says saving.. while changing the box, it must be turned off at the moment it says saving..., the pokemon u clon must be in the party since the beggining of the trick