To do this trick all you need are these things, Gamecube, Format wanting memory card and controller (obvious). When you are doing this trick I am not responsible for your actions and if you lose all your saves doing this. First go to the memory card screen and when the memory card asks you to format choose format and press "A", now it should say are you sure you want to do this? When you have this message up hover over the "yes" sign then really quickly press "A" and pull out the memory card at the same time this is really hard to do so please keep trying this guide and it should work if you get it to work then after it should say this memory card was not formatted and press "A" and their you go you have all your saves back instead of formatting. I will probably make a video but for now my memory card is not formatting and I have a crappy camera plus I don't feel like it.