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