Search for the UFC Undisputed 3 ISO file. It is crucial to ensure the file extension is .iso . Compressed formats like .cso or .zip are common but must be extracted (unless using a compressed ISO).
While it doesn't work on PPSSPP, you can play the actual UFC Undisputed 3 on a PC using a called RPCS3 . Ufc Undisputed 3 Ppsspp Download
:
This is the only official UFC title released for the PSP. It features a large roster, including Brock Lesnar, and is fully playable on the PPSSPP Emulator . Search for the UFC Undisputed 3 ISO file