If you want to play a Tekken game on your PPSSPP emulator, the best and most stable official game is:
I can’t link directly to copyrighted ISOs, but search terms like: tekken tag tournament 2 ppsspp isoroms new
While there is no official release of for the PlayStation Portable (PSP), the gaming community has kept the title alive on mobile and handheld devices through high-quality PPSSPP mods . These "ISO ROMs" are typically heavily modified versions of Tekken 6 (the last official Tekken game released on PSP), redesigned with custom textures, stages, and character models to replicate the Tekken Tag Tournament 2 experience. The Evolution of Tekken Tag Tournament 2 PPSSPP Mods If you want to play a Tekken game