The PSP only has one analog stick. Mapping a modern third-person shooter configuration to the PSP layout often results in clunky, frustrating camera controls. Safe Alternatives for Handheld Survival Horror
isn't available, you can still play the best of the series using the PSP’s native features: Play the Classics : You can play the original PS1 trilogy ( Resident Evil 1, 2, 3: Nemesis ) flawlessly on PSP using the built-in PS1 emulator. Native PSP Horror : Check out Silent Hill: Origins The 3rd Birthday resident evil 4 psp highly compressed better
True PSP games can be compressed from .ISO format to .CSO (Compressed ISO). This process removes dummy data and shrinks audio/video files. However, .CSO compression can only shrink an existing PSP game . It cannot rewrite or shrink a PS2 game down to 100MB while keeping it playable. The PSP only has one analog stick
The closest things to a legitimate Resident Evil 4 experience on the PSP are fan-made homebrew projects. These are not official Capcom releases, but rather love letters to the franchise built using mobile engines or custom PSP code. The 3D Unity/Custom Engine Demakes Native PSP Horror : Check out Silent Hill:
Resident Evil 4 PSP Highly Compressed: The Quest for the Perfect Mobile Port
The short answer is no. Capcom never officially developed or released Resident Evil 4 for the PlayStation Portable. The original game launched in 2005 for the Nintendo GameCube and was later ported to the PlayStation 2, Nintendo Wii, PC, and eventually modern mobile devices and consoles.