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.
: Files in these archives are typically tested for use on original PSP hardware (with custom firmware) or via the PPSSPP emulator . Download Angry Birds (Rovio) (minis) cso
You can find the game through community-maintained archives: Searching for for the PSP Minis platform (often found in
: The Internet Archive's psp minis archive is a work-in-progress collection that specifically hosts "small simple games" originally only downloadable through PSN. : When browsing these archives, look for the
: When browsing these archives, look for the title "Angry Birds" specifically within the "Minis" or "PlayStation Portable" categories.
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