I use gameshark codes to steal rental Pokemon from Pokemon emerald's battle factory. Basically what I've done is go into the battle factory and rent 3 Pokemon. I then use the gameshark code to teleport out, keeping the rental Pokemon and giving them the junk Pokemon that was on me. Here are the codes which must be inputted: Master Code: 9266FA6C97BD 905B5ED35F81 B76A68E5FAB1 Warp Code: 19C67C656689 94318B106757