Since , there is no official ISO to download. However, "RE4 PSP" usually refers to fan-made mods or alternative ways to play the game on a handheld.

Independent developers have built impressive, heavily modified games using older engines (such as the Quake mobile engine or Resident Evil 2 assets) to replicate the look, over-the-shoulder camera, and atmosphere of Resident Evil 4 on the PSP.

But here’s the hard truth: Any website offering a "RE4 PSP ISO" is either lying, serving you malware, or offering a broken homebrew port.

I'll search for "Resident Evil 4 Android PPSSPP" to clarify. sources claim that RE4 is available for PSP and can be played via PPSSPP. However, this is a misconception. There is no official PSP version. The files being distributed are likely fake or are actually PS2 ISOs that users try to run on PSP emulators, which won't work. I need to clarify this in the article.