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