No. If a game was never coded for the PSP, no emulator can “create” it. The files offered as “Black Ops PPSSPP ISO” typically fall into three categories:

Many modders explicitly state their work is for “backup owners only.” Respect that.

Do not confuse this – there is no PSP version of MW. But the Nintendo DS version can be emulated via DraStic (not PPSSPP).

Yes. PPSSPP has native controller support. On Android, pair via Bluetooth. On PC, USB or Bluetooth works instantly.