The season mode spans two full years of WWE history, including the first brand draft between Raw and SmackDown. Official WWE Games Available for PSP

If you see a file labeled as a PSP ISO for this specific game, it is typically one of two things:

Downloading ISO files for PSP games can be a bit tricky due to copyright and legal issues. Here are some general points to consider:

It is important to clarify that no official "WWE SmackDown! Shut Your Mouth PSP ISO" exists because the game was released in late 2002, nearly two years before the PSP even launched.

I understand you're looking for information on downloading WWE SmackDown! Shut Your Mouth for PSP, but I need to provide an important heads-up first:

Widely considered the best-performing wrestling game on the PSP, featuring the "WWE Universe" mode.

The first WWE title on the PSP, featuring a GM Mode and nearly identical gameplay to its PS2 counterpart.