Unlike standard PSP games (ISOs), PS1 games on PSP must be in .PBP format (EBOOT).
The "UPD" label is your guarantee that someone has done the hard work of patching the audio, fixing the crashes, and optimizing the controls. Whether you’re landing a 10-hit combo with Law or discovering the secret character Dr. B, the experience on a PSP 3000 or Go is almost magical. tekken 3 psx psp eboot upd