While RE4 is missing, you can play these official Resident Evil titles on a PSP or PPSSPP: Resident Evil: Director's Cut (PS1 Classic) Resident Evil 2 (PS1 Classic) Resident Evil 3: Nemesis (PS1 Classic) PS2 or GameCube versions of Resident Evil 4 on your device instead? Resident Evil 4 - App Store - Apple
, there is no official version of the game for the PlayStation Portable (PSP). Resident Evil 4 was originally released for consoles like the GameCube and PlayStation 2, which are more powerful than the hardware the PPSSPP emulates. The Reality of "Resident Evil 4 PPSSPP" Modded Versions : Most "RE4 PPSSPP" downloads found online are actually fan-made mods of other PSP games (such as Syphon Filter Army of Two ) with Resident Evil skins. Fake Videos
How to Legally Play PSP Games on PPSSPP (Including Resident Evil 4)