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