If you are looking for similar high-speed or endless-runner gameplay on your PSP, these titles are official releases:
If you type "Subway Surfers for PSP" into a search engine, you will be met with a graveyard of broken links, YouTube clickbait, and outdated forum threads. Why is that? And if you desperately want to chase the Inspector and his dog on your vintage Sony handheld, what are your actual options? subway surfers for psp