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