Playing Metal Gear Solid 3 on PSP: Not Possible Natively, Emulation Poor

Metal Gear Solid 3: Snake Eater was a PlayStation 2 exclusive and cannot run natively on the PSP due to hardware limitations. While custom firmware and a PS2 emulator (like a PSP port of PCSX2) could theoretically run it, performance is extremely poor and not practical. Better alternatives include playing the original on PS2, or the HD remasters on PS3, PS4, PS5, or PC (Metal Gear Solid 3: Subsistence). Remember, emulation is legal only if you own the game; downloading ISOs you don't own constitutes piracy.