In Sonic Adventure 2 Battle how do you get Amy chao in your chao garden

most people say only by action replay but action replay and gameshark work by the data on the game. to get an Amy or a knuckles chao, you have to get a red or pink egg, evolve it to a sonic chao, and keep on giving it green chaos drives because its hair will go all the way down, and turn into one spike. keep giving it more, and it will turn into multiple spikes. Amy chao will be nude though.