Things You'll Need
Instructions
Connect your PSP to your computer with the USB cable and select "USB Connection" from the PSP XMB, which is the name of the PSP menu.
Download the GameBoy Advance emulator for the PSP, gpSP. This is the only GBA emulator for the PSP. Right-click the emulator after it has downloaded. Click "Copy," and go into the PSP memory stick on your computer.
Open the "PSP" folder on the PSP memory stick and you will see the "GAME" folder. Right-click the "GAME" folder and click "Paste" to transfer the GameBoy Advance emulator to the PSP memory stick.
Download one of the GameBoy Advance games from one of the resource sections of this guide. Only download the games for which you have purchased a license from Nintendo.
Right-click the game file after it has finished downloading to your computer and click "Copy." Go into the "gpSP" folder, which is now in the "GAME" folder on your PSP, and right-click the "ROMS" folder. Click "Paste" to transfer the GameBoy Advance game to your PSP memory stick.
Press the "O" button to disconnect the PSP safely from the computer.