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