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