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