If you decide to proceed, remember:
: The filename is case-sensitive in many operating systems (like Onion OS). It should be named exactly PSXONPSP660.bin (lowercase extension). Placement : Move the file into your emulator's BIOS folder . For Onion OS (Miyoo Mini) , place it in /BIOS/ . Download Psxonpsp660.bin
, allowing it to boot games from Japan, North America, and Europe without switching files. Improved Performance: If you decide to proceed, remember: : The
Before downloading and installing Psxonpsp660.bin, consider the following: If you decide to proceed
This BIOS was specifically optimized by Sony for the PSP's internal PS1 emulator. It includes patches that fix glitches in notoriously difficult-to-emulate games like Mortal Kombat Trilogy and Poy Poy 2 .