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