If you want a genuine Call of Duty experience on PPSSPP, download the original Call of Duty: Roads to Victory or Call of Duty: Black Ops (Declassified) on PS Vita (if your device can run Vita games). The modded "Black Ops 2" is a novelty toy, not a replacement for the real game.
Responsible choices and alternatives
To get a better experience than vanilla PPSSPP, you should look for these created by the ROM hacking community: call of duty black ops 2 ppsspp download better
For the "better" PPSSPP experience, you will be playing Call of Duty: Modern Warfare 3: Defiance or the fan-modded Black Ops mods for Roads to Victory . Do not fall for scam websites promising "Black Ops 2 ISO – 100% Working." They are viruses. If you want a genuine Call of Duty