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 the game on Hard difficulty.
Kill 50 enemies with the Death Stare at full charge.
Put on Team Wesker costume.
Finish the game without saving.
Defeat 16 bats in the church.
Collect all of only one color of Leech Charms.
Defeat Mimicry Marcus for the first time only using a knife.
Defeat all enemies in Leech Hunter.
Obtain all weapons.
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).
Finish Leech Hunter with rank E or above.
Finish Leech Hunter with rank A.
Defeat an enemy with a knife.
Play Leech Hunter.
Defeat Queen Leech.
Defeat all bosses except Centurion using Rebecca.
Complete the treatment plant.
Read all files.
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.
Get picked up by the Infected Bat.
Complete the training facility.
Destroy a zombie's legs.
Play the piano using Rebecca.
Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.
Create a Custom Handgun.
Combine every type of herb with each other.
Shoot down a Hunter or an Eliminator while they are jump attacking in the air.
Defeat a zombie by stomping on them.
Try to push something heavy with Rebecca.
Use a Green Chemical.
Defeat Centurion.
Defeat an enemy with a critical-hit headshot.
Complete the train.
Defeat an enemy by burning them.
Create a Molotov Cocktail.
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.
Defeat Stinger.
Change into a costume.