Downloading any ISO for a game you do not own is under copyright law (DMCA in the US, EUCD in Europe). Even if you own a copy of WWE '13 on PS3, that license does not extend to downloading a PSP ISO – especially since no official PSP version exists.
If you prefer stable, official releases over mods, these were the highest-rated WWE titles actually released for the system: What is the best WWE game on the PSP in terms of gameplay? wwe 13 psp iso 195
: A condensed version of the customization suite, allowing minor structural and color changes to build a unique contender. Technical Specifications and Compatibility Downloading any ISO for a game you do
When the final bell rang, the screen showed Eddie's avatar atop Sinclair's prone body, the referee's hand falling in slow motion. There was no pyrotechnic explosion, no triumphant theme—just the quiet clack of the PSP button and a text line: "The debt is paid. The rooftop is empty." : A condensed version of the customization suite,
Connect your PSP to a computer via a USB cable and toggle "USB Connection" in the system menu.
Standard arenas are re-skinned into the grittier WWE '13 design layouts, including custom designs for Raw, SmackDown, and WrestleMania.
Open the PPSSPP app, use the built-in file browser to find the folder where you extracted the ISO, and click the game icon to boot it up. Method 2: Playing on Original PSP Hardware