Ive spent the last two hours trying to get this to work and reading through forums. Ive downloaded the app, and realize that you have to make a folder and download gba_bios.bin and put it in that folder with games. However ive downloaded at least 10 different websites gba_bios.bin and when i try to open it, my computer( its a pc, not mac) doesn't know how to so i cant put it into the folder i made. Can anyone please help me with this? Thanks!