Since you cannot play Subway Surfers on PSP, you might enjoy these similar "runner" or high-action titles available for the system: Runners/Action Tokobot Plus Ratatouille High Speed Need for Speed: Most Wanted 5-1-0 Grand Theft Auto: Liberty City Stories that actually work on the PSP?
To play downloaded custom homebrew or .ISO clones on a physical PSP console, your device must run Custom Firmware (CFW) such as PRO-C or LME. subway surfers psp iso download top
This is the most foolproof method to play the authentic mobile game on a larger screen. Here's a simple, step-by-step guide: Since you cannot play Subway Surfers on PSP,