Searching for for the PSP Minis platform (often found in .cso or .iso formats) can be tricky because the official version was delisted from the PlayStation Store years ago.
You can find the game through community-maintained archives: Download Angry Birds (Rovio) (minis) cso
: The Internet Archive's psp minis archive is a work-in-progress collection that specifically hosts "small simple games" originally only downloadable through PSN. Searching for for the PSP Minis platform (often found in
Be cautious when downloading from third-party sites; sticking to well-known repositories like the Internet Archive is generally safer for finding delisted digital content. psp minis archive (wip) : a lot of people psp minis archive (wip) : a lot of
: When browsing these archives, look for the title "Angry Birds" specifically within the "Minis" or "PlayStation Portable" categories.
: Files in these archives are typically tested for use on original PSP hardware (with custom firmware) or via the PPSSPP emulator .