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