THIS WILL WORK ON PSP SLIM AND PSP FAT. YOU HAVE TTO HAVE CUSTOM FIRMWARE INSTALLED IN YOUR PSP. THIS IS WHERE YOU DOWNLOAD THE GBA EMULATOR (I changed the link because the old link wasn’t working) dl.qj.net THIS IS WERE YOU DOWNLOAD THE GBA BIOS www.megaupload.com THIS IS WERE YOU DOWNLOAD THE GBA GAMES. ( I FINALLY UPDATED THE GBA ROM WEBSITE ) www.doperoms.com