Save before each major symptom evolution to test outcomes without permanent penalty.

No healthy humans remain. 5. Survival Horror Walkthrough – Resident Evil 4 (Las Plagas) | Chapter | Key Action | Anti‑Parasite Tip | |---------|------------|--------------------| | 1–2 | Avoid headshots initially (triggers plaga emergence). | Use leg shots to stagger. | | 3 | After castle, use flash grenades – instantly kill exposed plagas. | Save flashes for groups. | | 4 | Boss – Bitores Mendez (infected spine). | Shoot the exposed parasite on his back. | | 5 | Final – Saddler (control plaga). | Use special rocket launcher after stunning with thermal scope. |