This is the most critical section of this article. The legality of downloading a RESIDENT EVIL 4 ROM is not a myth; it is settled law in most jurisdictions (notably the US and EU).
Ironically, playing the RESIDENT EVIL 4 ROM on a modern PC via the Dolphin Emulator results in a better experience than many official ports.
Assuming you have legally obtained your ROM file (either via self-dump or via the 24-hour "time-shifting" laws where applicable), here is the definitive way to play it in 2025.