OLDGAMESNEXUS GUIDES
PS1 complete guide

Resident Evilcomplete walkthrough

Complete Resident Evil PS1 walkthrough for the Spencer Mansion, Guardhouse, underground areas and laboratory, with inventory, puzzle and survivor advice.

Difficulty
Intermediate
Completion
7–12 hours
Guide length
17 min
Updated
2026-08-10
PS1Resident Evil cover art
01

Controls and essential techniques

Learn these inputs before beginning the route.

InputAction and field note
D-padTurn and moveUse deliberate tank-control turns before running past narrow enemy groups.
SquareRunAvoid unnecessary combat; distance is often more valuable than ammunition.
R1 + CrossAim and fireCreate space first, aim, then fire controlled shots.
CrossInteract and confirmInspect items from multiple angles in the inventory to reveal keys and clues.
TriangleOpen status screenPlan key items before leaving an item box so slots remain available.
02

See the game in action

Real, unedited screenshots showing how Resident Evil looks during play on PS1.

Authentic gameplay: captures are produced in the OldGames emulator when available and checked against credited editorial references when needed. No AI-generated artwork or recreated mockups are used.

03

Complete walkthrough

6 chapters from the opening stage through completion.

01
Chapter 1

Character choice and mansion opening

Choose Chris or Jill and establish the first safe inventory route.

  1. Jill has more item space and lockpick access; Chris has greater durability but a tighter inventory.
  2. Search the dining hall and west corridors, collect early map and key items, and avoid fighting every zombie.
Checkpoint

First mansion key route established.

02
Chapter 2

Armor Key and mansion puzzles

Open the central mansion network and gather required crests.

  1. Use item boxes to keep only a weapon, ammunition, healing and the active key or puzzle item.
  2. Clear statue, painting and room puzzles methodically, discarding keys when the game confirms they are no longer useful.
Checkpoint

Route to the courtyard unlocked.

03
Chapter 3

Courtyard and Guardhouse

Cross the exterior area and investigate Plant 42.

  1. Carry the crank and necessary healing through the courtyard while avoiding poison where possible.
  2. In the Guardhouse, drain the flooded area, investigate the chemical puzzle and defeat or weaken Plant 42 based on character route.
Checkpoint

Guardhouse cleared.

04
Chapter 4

Return to the mansion

Survive stronger enemies and open the final mansion rooms.

  1. Do not linger in hallways now occupied by Hunters; use the shortest item-box routes.
  2. Collect the remaining emblems and batteries while resolving the library and upper-floor objectives.
Checkpoint

Underground route available.

05
Chapter 5

Tunnels and laboratory access

Complete the underground sequence and descend into the final facility.

  1. Navigate boulder corridors carefully, defeat required threats and use the battery and crank route to progress.
  2. Return with the correct medals, open the fountain mechanism and enter the laboratory.
Checkpoint

Laboratory reached.

06
Chapter 6

Laboratory, Tyrant and endings

Unlock the final doors, rescue partners and escape.

  1. Use the MO Disks where required for the best rescue outcome, then complete the computer and power-room route.
  2. Defeat or evade the Tyrant, trigger the self-destruct sequence and reach the helipad with rescued characters before time expires.
Checkpoint

Mansion escaped with the chosen ending.

04

Secrets and field notes

Useful details for cleaner runs and full completion.

Examine every key item

Rotate books, crests, medals and containers in the inventory; several transform or reveal hidden components.

Combat is optional

Many hall enemies can be bypassed. Save ammunition for forced encounters, Hunters and bosses.

Multiple endings

Which partners survive depends on rescue actions and route decisions made before the final escape.

05

Frequently asked questions

Fast answers to common progression problems.

Should I start with Jill or Chris?

Jill is generally more approachable because she carries more items and has the lockpick. Chris offers a tougher resource-management route.

Why does an item seem useless?

Choose Examine and rotate it. Many objects reveal a switch, inscription or second item.

Can I save everyone?

Yes, but the exact rescue requirements differ by character route and require completing optional partner objectives.

Sources and editorial note

This walkthrough was independently written and checked against publisher material where available. It does not reproduce manual text.