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