Things You'll Need
Instructions
Download the SNES9X Euphoria emulator software to your computer desktop. Right-click the .rar file and choose "extract." Open the folder, locate the sub-folder titled "3.x" and right-click it. Choose "Copy".
Connect your PSP to your computer with the included USB cable. Turn on your PSP and wait for the computer to connect to the device. Open "My Computer" ("Finder" if using OS X) and double-click the PSP icon on the left side of the screen.
Look for a folder titled "Game 105." Right-click an open space in the "PSP" folder, choose "New Folder" and name it "Game 105" if the folder does not exist. Double-click the "Game 105" folder, right-click an open space inside the folder and choose "Paste."
Download SNES ROMs. Drag the ROM folders to the "ROMs" file in your PSP's file system. Unplug your PSP and reboot it. Choose "SNES9X" from the main menu when it reboots to play your SNES games.