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