Before I go on, I want to tell you that emulators are not illegal. The bios and roms (games) are. So, I will not post where to get them. You are goin to use google.
Requirements:
1. GPSP - http://dl.qj.net/psp/emulators/unofficial-gpsp-kai-v32-test-87.html
Steps:
1. Download the gpSP from the above link. Extract the files into your desktop. After, open the ms0/PSP/GAME. Until you see the folder gpSP. Copy that folder into your GAME folder on your PSP.
2. Go inside the gpSP folder in your PSP. Now download the GBA BIOS use google to search for it. Rename the bios to "gba_bios.bin". Transfer that file to the gpSP folder.
3. After get your gba roms and put it on the ROMS folder inside that GBA folder. Gpsp can play .gba and zip files that contains the .gba file.Start the game and have fun.
