The “200MB” version (often found in dusty ROM forums from 2012) is a of the 2007 PC version, converted via unofficial PS2-to-PSP emulators like DaedalusX64 (for N64) or more commonly, a repackaged PSX2PSP bubble that actually runs the PS2 slim version at 15 FPS.
: To run unofficial software and games from a memory stick, your PSP will need custom firmware. The initial setup can be intricate, but once installed, it's generally straightforward. Resident Evil 4 Psp Iso Highly Compressed Download 200
Most files labeled as "Resident Evil 4 PSP ISO Highly Compressed" are actually: The “200MB” version (often found in dusty ROM
Because it's being played through an emulator, you can map the controls to your smartphone screen or connect a Bluetooth controller for a console-like feel. but once installed