Here is the full list of all 47 Resident Evil 0 achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Finish the game with rank S.
Combine every type of herb with each other.
Defeat an enemy by burning them.
Finish the game without saving.
Defeat all bosses except Centurion using Rebecca.
Defeat 16 bats in the church.
Finish Leech Hunter with rank A.
Collect all of only one color of Leech Charms.
Finish Leech Hunter with rank E or above.
Defeat Mimicry Marcus for the first time only using a knife.
Play Leech Hunter.
Read all files.
Kill 50 enemies with the Death Stare at full charge.
Defeat an enemy with a knife.
Put on Team Wesker costume.
Defeat all enemies in Leech Hunter.
Finish the game without combining herbs.
Finish the game without using a recovery item (including Green Chemicals).
Destroy a zombie's legs.
Obtain all weapons.
Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.
Complete the treatment plant.
Finish the game on Hard difficulty.
Finish the game without using a First-Aid Spray.
Defeat Queen Leech.
Obtain all keys and use them all.
Defeat the Proto Tyrant.
Defeat an enemy with a critical-hit headshot.
Complete the factory.
Fight off the Proto Tyrant.
Complete the laboratory.
Defeat Infected Bat.
Get picked up by the Infected Bat.
Complete the training facility.
Play the piano using Rebecca.
Create a Custom Handgun.
Shoot down a Hunter or an Eliminator while they are jump attacking in the air.
Defeat a zombie by stomping on them.
Attack an enemy to save your partner who is grappling with that enemy.
Change into a costume.
Use a Green Chemical.
Try to push something heavy with Rebecca.
Defeat Centurion.
Complete the train.
Create a Molotov Cocktail.
Defeat Stinger.
Break free of a Cerberus while they are biting you or trying to push you down.