There are two PlayStation versions: Version 1.0 and Version 1.1. This latter would become the base of every subsequent port. 

1.1 version fixes a few things:

- When you encounter Nemesis at the park for the 5th time, there is a glitch where it could get stuck in a certain corner. This was fixed in 1.1 version.

- In 1.0 version the Music Box puzzle is randomized. In 1.1 version Music Box puzzle solution is always the same. This was presumably done for people who had hearing problems to figure out the puzzle solution, as the puzzle relies on audio memorization.

Source: https://tcrf.net/Resident_Evil_3:_Nemesis_(PlayStation)

Is it allowed to run the JPN 1.1 version on PS1, PS2 and emulator?

liquidnightmare

Resident Evil 3: Nemesis

GameCube

Theus_resident

JokerUY

im4rcuss

BIIEELL_88

tonyy

JPN / NTSC

CHN / PAL

Any%

Knife Only

Nemesis%

Heavy

Arrange

PSP / Vita / PSTV

Hard

Console

Emulator

Vanilla

REbirth

Light

Easy

Difficulty PC TWN/CHN

Console or Handheld

Difficulty DC

Difficulty GCN

Difficulty PSN

Difficulty PS

Difficulty PC JPN

PS Console or Emulator

GCN Console or Emulator

Vanilla or REbirth

DC Console or Emulator

Dreamcast

PlayStation 2

PlayStation

PlayStation 3

PlayStation Portable

PlayStation Vita

PlayStation TV

Resident Evil

Autosplitter Built into LiveSplit

Official REbirth RE-VOTE Results

Official RE-VOTE For Rebirth Patch Thread, READ IN FULL DETAIL.

twn/chn revisions (not only bh3)

Game crashing?

how do i get the game on pc? very first game I'm going to try and learn to run.

Albirex

SonBeto

LuxKiller65

re_duke

deserteagle417

AlekStation97

b000o

AstralMagnet

PSYCHOTATER

SorryBabe

Zillionjape

Auralee870

Retrochimera