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