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