I installed an incorrect .cia for Super Mario Advance 4, and have found a good version to replace it with. I'd like to delete the originally installed game, but I guess I need to know the serial number of it so that I can pick the correct file. Does anyone know of a list or repository that has them all? The only one I've found so far only had Advance 3 listed. Or can I just install the .cia on top of the old one since they are the same game? Thanks.