Because there is no official PSP version, there is no "official" ISO file for PPSSPP.
But dedicated modders in 2021 found a way: compressing and converting the PS2 assets into a format that PPSSPP could recognize via (custom firmware). While these versions often suffered from frame drops, 2021 saw custom patches that made the game surprisingly playable on flagship phones. mortal kombat shaolin monks ppsspp 2021