When you search for a Black Ops 3 PPSSPP download, the files you find online are not official ports. Instead, they fall into two categories:
Built natively for touchscreens and offers native Bluetooth controller support. Call of Duty: Warzone Mobile call of duty black ops 3 ppsspp download for android
An official version of Call of Duty: Black Ops 3 never released When you search for a Black Ops 3