Resident Evil 4 on PS2: Only One Version Exists (And It Has the Most Content)

There is exactly one release of Resident Evil 4 for PlayStation 2.

• Title: Resident Evil 4
• Release: October 25, 2005 (NA) / November 18, 2005 (EU) / December 1, 2005 (JP)
• Discs: 2 DVD-ROMs (Disc 1: Main Game, Disc 2: Separate Ways + Bonus)
• Content: Includes "Separate Ways" (Ada campaign), "Assignment Ada," Mercenaries, all costumes/weapons—content cut from the original GameCube launch, added for PS2.
• Controls: Optimized for DualShock 2 (Type C recommended).
• Visuals: Lower-res textures, reduced lighting, compressed FMVs vs. GameCube. But more content.

Other Platforms (Not PS2)

• GameCube (Original, 2 discs, less content)
• Wii Edition (2007) — Pointer controls, GC content + PS2 extras
• PC (2007) — Poor port; HD Project mod essential
• PS3/360 (2011) — HD Remaster (720p, trophies/achievements)
• PS4/5, Xbox One/Series, Switch, PC (2023) — Remake (RE Engine) — completely new game

If you want the classic PS2 experience with maximum content, the 2005 PS2 version is it. For modern play, get the 2023 Remake.