A few creators have made "Free Fire Mini" for old Java phones (e.g., Nokia). These 240x320 pixel demos are sometimes converted into a format that can be run on PSP via custom firmware, but they lack online play, characters, or real maps.
While there is no official version of Garena Free Fire for the PlayStation Portable (PSP), the modding community has created "Fan Mod" ISOs that allow you to play a similar experience on the PPSSPP Emulator Free Fire Psp Iso Download Highly Compressed